jellyfin-kodi/libraries/dateutil/tz/tz.py

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Version 4.0.0 (#182) * Adjust refresh behavior * Fix favorites * Add option to mask info * Fix keymap delete * Fix empty show * Version bump 3.1.14 * Reset rescan flag * Fix subtitles encoding * Fix path verification * Fix update library Plug in remove library percentage * Fix unauthorized behavior Reprompt user with login * Fix series pooling * Version bump 3.1.15 * Fix for additional users Return all users, not just public users * Fix http potential errors Prevent from going further if {server} or {userid} is requested but not filled to avoid 401 errors * Fix extra fanart * Fix patch make a case insensitive search * Version bump 3.1.16 Additional logging, fix kodi source. * Fix library tags on update * Version bump 3.1.17 * Fix season artwork * Fix season artwork * Fix logging * Fix blank files sources * Add backup option * Fix userdata song * Transfer data.txt to data.json Use default port for webserver caching * Fix mixed content shortcut * Fix path encoding for patch Hopefully this works... * Fix source nonetype error Just incase, wrap in a try/except because it's not important. * Base fast sync on server time Try to fix music video refresh to prevent cursor from moving up. * Prep subfolders for dynamic Support homevideos for now * Fix empty artist, missing Title * Version bump 3.1.18a * Version bump for objects 171076013 * Notify user of large updates Give option to back out if the user wants to manually update the libraries * Fix sources.xml verification * Prevent error in monitor Put in place try/except in case data is None * Remember sync position for manual triggers Allow to resume sync on restart for manual user triggers (update, repair). Automatically refresh boxsets if movie library is selected. use waitForAbort and emby_should_stop prop to terminate threads * Update string for sync later * Add subfolders for dynamic movies * Small fixes * Version bump 3.1.19 * Fix fast sync try/except, default back to previous behavior. * Fix artwork * Change settings name To ensure it takes default value instead of previous value set in 3.0.34 * Fix transcode flac and live tv * Fix episodes for series pooling * Add live tv support * Version bump 3.1.20 * Revert "Small fixes" This reverts commit 9ec1fa35853352bb6c8a56da94e8c8bcc3843c07. * Version bump 3.1.21 * Fix playback starting server connection instance * Fix show update * Fix boxsets * Fix lastplayed * Patch to support pre 3.6 libraries * Fix slowness * Plug in settings for threading * Plug in settings for threading * Adjust sleep behavior * Version bump 3.1.22 * Fix server detection in monitor * Version bump 3.1.23 * Fix potential error with checksum * Fix missing new artists * Fix library sync Adjust lock, re-add screensaver deactivated during sync, prep compare sync, stop library updates from being processed before startup sync is completed * Version bump 3.1.25 * Fix local trailers * Adjust lock modification * Check db version * Prevent error from creating nodes The addon automatically creates nodes at startup with prefilled information. Prevent errors in the event something goes wrong. It will fix itself down the line, after user has logged in. * Version bump 3.1.26 * Revert "Version bump 3.1.26" This reverts commit c583a69a4b9bb8af160cfb564485cc59da20fca7. * Fix screensaver toggle * Fix source selection for direct stream * Version bump 3.1.26 * Add progress for updates * Revise progress bar Fix typos and subsetting * content notification * Remove content with update library Now remove irrelevant content as well * Fix slowness * Version bump 3.1.27 * Stop trying to get items if server offline * Fix content type for dynamic music * Fix resume sync Now save progress, unless exited due to path validation * Fix artwork for shortcuts on profile switch * Add force transcode settings * Fix audiobooks back to video type Add shortcuts. Audiobook can't be music type otherwise it break resume behavior and it won't play the right item. Has to be video type. * Update general info To finish, download and installation * Update README.md * Move welcome message to service * Prevent patch loop Try once, then let it go, to avoid locking user in a restart loop * Review library threads * Prep for audiobook transcode Still need to implement universal for audio transcode * Version bump 3.1.28 * Fix emby database locked * Fix regression to welcome message * Version bump 3.1.29 * Adjust playback Allow direct play for http streams * Ensure all threads are terminated correctly * Fix empty results due to error 500 * Fix boxset refresh * Fix resume sync behavior Allow to complete the startup sync in the event user backs out of resume sync * Version bump 3.1.30 * Update patch Move patch from cache to addon_data. No longer need to restart Kodi to apply the first patch. * Fix inital sync leading to fast sync * Fix user settings Due to api change in 3.6.0.55 * krypton update * Adjust for resume settings With .55 the resume setting is set per library. Instead query server to see if the item is played to offer delete * Restart service upon check for updates To reload the new objects module. * Fix update library Only do the compare when user selects update library, also add a restart service option in the add-on settings > advanced * Version bump 3.1.31 * Update dependencies * Update FR translation * Update DE translation * Add translation * Support up next * Small service adjustment * Krypton update to support upnext * Add a verification onwake Somehow, Kodi can trigger OnWake without first trigger OnSleep. * Fix loading if special char in path * Add logging and small fixes Prepare userdata by date modified * Version bump 3.1.32 * Change default behavior of startup dialog In case it is forced closed by Kodi, allow the sync to proceed * Ensure deliveryurl is an actual url * Update README.md * Fix nextup * Fix dynamic widgets * Detect coreelect, etc * Fix progress report Silent RefreshProgress in websocket * Follow emby settings for subtitles * Version bump 3.1.33 * Add Italian translation * Fix playback for server 3.6.0.61 * Version bump 3.1.34a * Add silent catch for errors * Adjust playback progress monitor Only track progress report if the item is an emby item * Fix subtitles not following server settings * Add remove libraries, fix mixed libraries * Fix live tv For now, use transcode since direct play returns a 127.0.0.1 unusable address as the path. * Allow live tv to direct stream * Fix LiveTV * Add setting to sync during playback * Fix updates * Fix encoding error * Add optional rotten tomatoes option * Version bump 3.1.35 * Fix emby connect auth string Was preventing proper device detection when using emby connect, play to, etc. * Add setup RT * Fix audio/sub change Only for addon playback * Add developer mode * Update patch Check for updates + dev = forced grab from github * Fix RT string * Fix patch Allow dev mode to redownload zip * Fix patch ugh sleep!! * Verify patch connection * Version bump 3.1.36 * Fix libraries being wiped Catch errors to prevent false positive * Add dateutil library * Prep convert to local time * Fix string * Prep for multi db version support * Fix service restart * Add shortcut restart addon Add notification * Add database discovery * Ensure previous playback terminated * Update translation New: Polish, Dutch Updated: German, French, Italian * Version bump 3.1.37 * Quick fix for new library dateutil * Catch error for dateutil In the event the server has some weird date that can't be converted * Version bump 3.1.38 * Fix dateutil import * Fix db discovery Ignore emby.db * Version bump 3.1.39 * Add a delay if setup not completed Avoid crash from everything loading at once. * Fix database discovery Add table verification + date modified verification * Container optional playutils * Version bump 3.1.40 * Adjust database discovery Compare loaded vs discovered to avoid loading old databases by accident. * Version bump 3.1.41 * Fix discovery toggle * Version bump 3.1.42 * Add webservice for playback prep * Fix service restart * Version bump 3.1.43 * Update default sync indicator Based on overall feedback * Fix check update * Fix if server is selected but unavailable * Support songs without albums * Fix encode and params * Increase retry timeout * Fix update generating duplicates * Add manage libraries Too many entries * Fix database discovery * Fixed transcode via context menu * Fix context transcode * Quiet webservice * Update Krypton objects * Fix database discovery prompt * fixed video listitem issues for krypton * load all item details for playlists * Fix playlist * Version bump 3.1.44 * Fix force hi10p transcoding behavior Fixes the "Force Hi10p transcoding" option to only apply to h264 video codecs * Clear playlist on player.onstop * Don't clear playlist if busy spinner is active * Fix case sensitive issue at calling the log function * fix db stuff (#164) * Reload objects upon initial setup * Fix database discovery ignore db-journal * Update translation German, Italian * Use LastConnectionMode for server test * Fix compare sync * Version bump 3.1.45 * Ensure widgets get updated Container.Refresh alone doesn't seem to work * Update database discovery * Re-add texture to database discovery * Add option to enable/disable service * Remove unused strings * Fix object reload upon restart service * Update Krypton objects * Update translation Dutch, Polish * Version bump 3.1.46 * Adjust client api * Adjust subtitles behavior * Fix string typo * Only run one full sync instance Prevent user from launching multiple syncs and freezing the add-on. * added "playlists" to wnodes * Disable Audiobooks Server doesn't have a set structure yet. This feature is broken atm. * Version bump 4.0.0 * License GPL v3 * Update readme
2019-01-24 13:04:48 +00:00
# -*- coding: utf-8 -*-
"""
This module offers timezone implementations subclassing the abstract
:py:class:`datetime.tzinfo` type. There are classes to handle tzfile format
files (usually are in :file:`/etc/localtime`, :file:`/usr/share/zoneinfo`,
etc), TZ environment string (in all known formats), given ranges (with help
from relative deltas), local machine timezone, fixed offset timezone, and UTC
timezone.
"""
import datetime
import struct
import time
import sys
import os
import bisect
2019-01-30 12:42:06 +00:00
import six
from six import string_types
from six.moves import _thread
from _common import tzname_in_python2, _tzinfo
from _common import tzrangebase, enfold
from _common import _validate_fromutc_inputs
Version 4.0.0 (#182) * Adjust refresh behavior * Fix favorites * Add option to mask info * Fix keymap delete * Fix empty show * Version bump 3.1.14 * Reset rescan flag * Fix subtitles encoding * Fix path verification * Fix update library Plug in remove library percentage * Fix unauthorized behavior Reprompt user with login * Fix series pooling * Version bump 3.1.15 * Fix for additional users Return all users, not just public users * Fix http potential errors Prevent from going further if {server} or {userid} is requested but not filled to avoid 401 errors * Fix extra fanart * Fix patch make a case insensitive search * Version bump 3.1.16 Additional logging, fix kodi source. * Fix library tags on update * Version bump 3.1.17 * Fix season artwork * Fix season artwork * Fix logging * Fix blank files sources * Add backup option * Fix userdata song * Transfer data.txt to data.json Use default port for webserver caching * Fix mixed content shortcut * Fix path encoding for patch Hopefully this works... * Fix source nonetype error Just incase, wrap in a try/except because it's not important. * Base fast sync on server time Try to fix music video refresh to prevent cursor from moving up. * Prep subfolders for dynamic Support homevideos for now * Fix empty artist, missing Title * Version bump 3.1.18a * Version bump for objects 171076013 * Notify user of large updates Give option to back out if the user wants to manually update the libraries * Fix sources.xml verification * Prevent error in monitor Put in place try/except in case data is None * Remember sync position for manual triggers Allow to resume sync on restart for manual user triggers (update, repair). Automatically refresh boxsets if movie library is selected. use waitForAbort and emby_should_stop prop to terminate threads * Update string for sync later * Add subfolders for dynamic movies * Small fixes * Version bump 3.1.19 * Fix fast sync try/except, default back to previous behavior. * Fix artwork * Change settings name To ensure it takes default value instead of previous value set in 3.0.34 * Fix transcode flac and live tv * Fix episodes for series pooling * Add live tv support * Version bump 3.1.20 * Revert "Small fixes" This reverts commit 9ec1fa35853352bb6c8a56da94e8c8bcc3843c07. * Version bump 3.1.21 * Fix playback starting server connection instance * Fix show update * Fix boxsets * Fix lastplayed * Patch to support pre 3.6 libraries * Fix slowness * Plug in settings for threading * Plug in settings for threading * Adjust sleep behavior * Version bump 3.1.22 * Fix server detection in monitor * Version bump 3.1.23 * Fix potential error with checksum * Fix missing new artists * Fix library sync Adjust lock, re-add screensaver deactivated during sync, prep compare sync, stop library updates from being processed before startup sync is completed * Version bump 3.1.25 * Fix local trailers * Adjust lock modification * Check db version * Prevent error from creating nodes The addon automatically creates nodes at startup with prefilled information. Prevent errors in the event something goes wrong. It will fix itself down the line, after user has logged in. * Version bump 3.1.26 * Revert "Version bump 3.1.26" This reverts commit c583a69a4b9bb8af160cfb564485cc59da20fca7. * Fix screensaver toggle * Fix source selection for direct stream * Version bump 3.1.26 * Add progress for updates * Revise progress bar Fix typos and subsetting * content notification * Remove content with update library Now remove irrelevant content as well * Fix slowness * Version bump 3.1.27 * Stop trying to get items if server offline * Fix content type for dynamic music * Fix resume sync Now save progress, unless exited due to path validation * Fix artwork for shortcuts on profile switch * Add force transcode settings * Fix audiobooks back to video type Add shortcuts. Audiobook can't be music type otherwise it break resume behavior and it won't play the right item. Has to be video type. * Update general info To finish, download and installation * Update README.md * Move welcome message to service * Prevent patch loop Try once, then let it go, to avoid locking user in a restart loop * Review library threads * Prep for audiobook transcode Still need to implement universal for audio transcode * Version bump 3.1.28 * Fix emby database locked * Fix regression to welcome message * Version bump 3.1.29 * Adjust playback Allow direct play for http streams * Ensure all threads are terminated correctly * Fix empty results due to error 500 * Fix boxset refresh * Fix resume sync behavior Allow to complete the startup sync in the event user backs out of resume sync * Version bump 3.1.30 * Update patch Move patch from cache to addon_data. No longer need to restart Kodi to apply the first patch. * Fix inital sync leading to fast sync * Fix user settings Due to api change in 3.6.0.55 * krypton update * Adjust for resume settings With .55 the resume setting is set per library. Instead query server to see if the item is played to offer delete * Restart service upon check for updates To reload the new objects module. * Fix update library Only do the compare when user selects update library, also add a restart service option in the add-on settings > advanced * Version bump 3.1.31 * Update dependencies * Update FR translation * Update DE translation * Add translation * Support up next * Small service adjustment * Krypton update to support upnext * Add a verification onwake Somehow, Kodi can trigger OnWake without first trigger OnSleep. * Fix loading if special char in path * Add logging and small fixes Prepare userdata by date modified * Version bump 3.1.32 * Change default behavior of startup dialog In case it is forced closed by Kodi, allow the sync to proceed * Ensure deliveryurl is an actual url * Update README.md * Fix nextup * Fix dynamic widgets * Detect coreelect, etc * Fix progress report Silent RefreshProgress in websocket * Follow emby settings for subtitles * Version bump 3.1.33 * Add Italian translation * Fix playback for server 3.6.0.61 * Version bump 3.1.34a * Add silent catch for errors * Adjust playback progress monitor Only track progress report if the item is an emby item * Fix subtitles not following server settings * Add remove libraries, fix mixed libraries * Fix live tv For now, use transcode since direct play returns a 127.0.0.1 unusable address as the path. * Allow live tv to direct stream * Fix LiveTV * Add setting to sync during playback * Fix updates * Fix encoding error * Add optional rotten tomatoes option * Version bump 3.1.35 * Fix emby connect auth string Was preventing proper device detection when using emby connect, play to, etc. * Add setup RT * Fix audio/sub change Only for addon playback * Add developer mode * Update patch Check for updates + dev = forced grab from github * Fix RT string * Fix patch Allow dev mode to redownload zip * Fix patch ugh sleep!! * Verify patch connection * Version bump 3.1.36 * Fix libraries being wiped Catch errors to prevent false positive * Add dateutil library * Prep convert to local time * Fix string * Prep for multi db version support * Fix service restart * Add shortcut restart addon Add notification * Add database discovery * Ensure previous playback terminated * Update translation New: Polish, Dutch Updated: German, French, Italian * Version bump 3.1.37 * Quick fix for new library dateutil * Catch error for dateutil In the event the server has some weird date that can't be converted * Version bump 3.1.38 * Fix dateutil import * Fix db discovery Ignore emby.db * Version bump 3.1.39 * Add a delay if setup not completed Avoid crash from everything loading at once. * Fix database discovery Add table verification + date modified verification * Container optional playutils * Version bump 3.1.40 * Adjust database discovery Compare loaded vs discovered to avoid loading old databases by accident. * Version bump 3.1.41 * Fix discovery toggle * Version bump 3.1.42 * Add webservice for playback prep * Fix service restart * Version bump 3.1.43 * Update default sync indicator Based on overall feedback * Fix check update * Fix if server is selected but unavailable * Support songs without albums * Fix encode and params * Increase retry timeout * Fix update generating duplicates * Add manage libraries Too many entries * Fix database discovery * Fixed transcode via context menu * Fix context transcode * Quiet webservice * Update Krypton objects * Fix database discovery prompt * fixed video listitem issues for krypton * load all item details for playlists * Fix playlist * Version bump 3.1.44 * Fix force hi10p transcoding behavior Fixes the "Force Hi10p transcoding" option to only apply to h264 video codecs * Clear playlist on player.onstop * Don't clear playlist if busy spinner is active * Fix case sensitive issue at calling the log function * fix db stuff (#164) * Reload objects upon initial setup * Fix database discovery ignore db-journal * Update translation German, Italian * Use LastConnectionMode for server test * Fix compare sync * Version bump 3.1.45 * Ensure widgets get updated Container.Refresh alone doesn't seem to work * Update database discovery * Re-add texture to database discovery * Add option to enable/disable service * Remove unused strings * Fix object reload upon restart service * Update Krypton objects * Update translation Dutch, Polish * Version bump 3.1.46 * Adjust client api * Adjust subtitles behavior * Fix string typo * Only run one full sync instance Prevent user from launching multiple syncs and freezing the add-on. * added "playlists" to wnodes * Disable Audiobooks Server doesn't have a set structure yet. This feature is broken atm. * Version bump 4.0.0 * License GPL v3 * Update readme
2019-01-24 13:04:48 +00:00
2019-01-30 12:42:06 +00:00
from _factories import _TzSingleton, _TzOffsetFactory
from _factories import _TzStrFactory
Version 4.0.0 (#182) * Adjust refresh behavior * Fix favorites * Add option to mask info * Fix keymap delete * Fix empty show * Version bump 3.1.14 * Reset rescan flag * Fix subtitles encoding * Fix path verification * Fix update library Plug in remove library percentage * Fix unauthorized behavior Reprompt user with login * Fix series pooling * Version bump 3.1.15 * Fix for additional users Return all users, not just public users * Fix http potential errors Prevent from going further if {server} or {userid} is requested but not filled to avoid 401 errors * Fix extra fanart * Fix patch make a case insensitive search * Version bump 3.1.16 Additional logging, fix kodi source. * Fix library tags on update * Version bump 3.1.17 * Fix season artwork * Fix season artwork * Fix logging * Fix blank files sources * Add backup option * Fix userdata song * Transfer data.txt to data.json Use default port for webserver caching * Fix mixed content shortcut * Fix path encoding for patch Hopefully this works... * Fix source nonetype error Just incase, wrap in a try/except because it's not important. * Base fast sync on server time Try to fix music video refresh to prevent cursor from moving up. * Prep subfolders for dynamic Support homevideos for now * Fix empty artist, missing Title * Version bump 3.1.18a * Version bump for objects 171076013 * Notify user of large updates Give option to back out if the user wants to manually update the libraries * Fix sources.xml verification * Prevent error in monitor Put in place try/except in case data is None * Remember sync position for manual triggers Allow to resume sync on restart for manual user triggers (update, repair). Automatically refresh boxsets if movie library is selected. use waitForAbort and emby_should_stop prop to terminate threads * Update string for sync later * Add subfolders for dynamic movies * Small fixes * Version bump 3.1.19 * Fix fast sync try/except, default back to previous behavior. * Fix artwork * Change settings name To ensure it takes default value instead of previous value set in 3.0.34 * Fix transcode flac and live tv * Fix episodes for series pooling * Add live tv support * Version bump 3.1.20 * Revert "Small fixes" This reverts commit 9ec1fa35853352bb6c8a56da94e8c8bcc3843c07. * Version bump 3.1.21 * Fix playback starting server connection instance * Fix show update * Fix boxsets * Fix lastplayed * Patch to support pre 3.6 libraries * Fix slowness * Plug in settings for threading * Plug in settings for threading * Adjust sleep behavior * Version bump 3.1.22 * Fix server detection in monitor * Version bump 3.1.23 * Fix potential error with checksum * Fix missing new artists * Fix library sync Adjust lock, re-add screensaver deactivated during sync, prep compare sync, stop library updates from being processed before startup sync is completed * Version bump 3.1.25 * Fix local trailers * Adjust lock modification * Check db version * Prevent error from creating nodes The addon automatically creates nodes at startup with prefilled information. Prevent errors in the event something goes wrong. It will fix itself down the line, after user has logged in. * Version bump 3.1.26 * Revert "Version bump 3.1.26" This reverts commit c583a69a4b9bb8af160cfb564485cc59da20fca7. * Fix screensaver toggle * Fix source selection for direct stream * Version bump 3.1.26 * Add progress for updates * Revise progress bar Fix typos and subsetting * content notification * Remove content with update library Now remove irrelevant content as well * Fix slowness * Version bump 3.1.27 * Stop trying to get items if server offline * Fix content type for dynamic music * Fix resume sync Now save progress, unless exited due to path validation * Fix artwork for shortcuts on profile switch * Add force transcode settings * Fix audiobooks back to video type Add shortcuts. Audiobook can't be music type otherwise it break resume behavior and it won't play the right item. Has to be video type. * Update general info To finish, download and installation * Update README.md * Move welcome message to service * Prevent patch loop Try once, then let it go, to avoid locking user in a restart loop * Review library threads * Prep for audiobook transcode Still need to implement universal for audio transcode * Version bump 3.1.28 * Fix emby database locked * Fix regression to welcome message * Version bump 3.1.29 * Adjust playback Allow direct play for http streams * Ensure all threads are terminated correctly * Fix empty results due to error 500 * Fix boxset refresh * Fix resume sync behavior Allow to complete the startup sync in the event user backs out of resume sync * Version bump 3.1.30 * Update patch Move patch from cache to addon_data. No longer need to restart Kodi to apply the first patch. * Fix inital sync leading to fast sync * Fix user settings Due to api change in 3.6.0.55 * krypton update * Adjust for resume settings With .55 the resume setting is set per library. Instead query server to see if the item is played to offer delete * Restart service upon check for updates To reload the new objects module. * Fix update library Only do the compare when user selects update library, also add a restart service option in the add-on settings > advanced * Version bump 3.1.31 * Update dependencies * Update FR translation * Update DE translation * Add translation * Support up next * Small service adjustment * Krypton update to support upnext * Add a verification onwake Somehow, Kodi can trigger OnWake without first trigger OnSleep. * Fix loading if special char in path * Add logging and small fixes Prepare userdata by date modified * Version bump 3.1.32 * Change default behavior of startup dialog In case it is forced closed by Kodi, allow the sync to proceed * Ensure deliveryurl is an actual url * Update README.md * Fix nextup * Fix dynamic widgets * Detect coreelect, etc * Fix progress report Silent RefreshProgress in websocket * Follow emby settings for subtitles * Version bump 3.1.33 * Add Italian translation * Fix playback for server 3.6.0.61 * Version bump 3.1.34a * Add silent catch for errors * Adjust playback progress monitor Only track progress report if the item is an emby item * Fix subtitles not following server settings * Add remove libraries, fix mixed libraries * Fix live tv For now, use transcode since direct play returns a 127.0.0.1 unusable address as the path. * Allow live tv to direct stream * Fix LiveTV * Add setting to sync during playback * Fix updates * Fix encoding error * Add optional rotten tomatoes option * Version bump 3.1.35 * Fix emby connect auth string Was preventing proper device detection when using emby connect, play to, etc. * Add setup RT * Fix audio/sub change Only for addon playback * Add developer mode * Update patch Check for updates + dev = forced grab from github * Fix RT string * Fix patch Allow dev mode to redownload zip * Fix patch ugh sleep!! * Verify patch connection * Version bump 3.1.36 * Fix libraries being wiped Catch errors to prevent false positive * Add dateutil library * Prep convert to local time * Fix string * Prep for multi db version support * Fix service restart * Add shortcut restart addon Add notification * Add database discovery * Ensure previous playback terminated * Update translation New: Polish, Dutch Updated: German, French, Italian * Version bump 3.1.37 * Quick fix for new library dateutil * Catch error for dateutil In the event the server has some weird date that can't be converted * Version bump 3.1.38 * Fix dateutil import * Fix db discovery Ignore emby.db * Version bump 3.1.39 * Add a delay if setup not completed Avoid crash from everything loading at once. * Fix database discovery Add table verification + date modified verification * Container optional playutils * Version bump 3.1.40 * Adjust database discovery Compare loaded vs discovered to avoid loading old databases by accident. * Version bump 3.1.41 * Fix discovery toggle * Version bump 3.1.42 * Add webservice for playback prep * Fix service restart * Version bump 3.1.43 * Update default sync indicator Based on overall feedback * Fix check update * Fix if server is selected but unavailable * Support songs without albums * Fix encode and params * Increase retry timeout * Fix update generating duplicates * Add manage libraries Too many entries * Fix database discovery * Fixed transcode via context menu * Fix context transcode * Quiet webservice * Update Krypton objects * Fix database discovery prompt * fixed video listitem issues for krypton * load all item details for playlists * Fix playlist * Version bump 3.1.44 * Fix force hi10p transcoding behavior Fixes the "Force Hi10p transcoding" option to only apply to h264 video codecs * Clear playlist on player.onstop * Don't clear playlist if busy spinner is active * Fix case sensitive issue at calling the log function * fix db stuff (#164) * Reload objects upon initial setup * Fix database discovery ignore db-journal * Update translation German, Italian * Use LastConnectionMode for server test * Fix compare sync * Version bump 3.1.45 * Ensure widgets get updated Container.Refresh alone doesn't seem to work * Update database discovery * Re-add texture to database discovery * Add option to enable/disable service * Remove unused strings * Fix object reload upon restart service * Update Krypton objects * Update translation Dutch, Polish * Version bump 3.1.46 * Adjust client api * Adjust subtitles behavior * Fix string typo * Only run one full sync instance Prevent user from launching multiple syncs and freezing the add-on. * added "playlists" to wnodes * Disable Audiobooks Server doesn't have a set structure yet. This feature is broken atm. * Version bump 4.0.0 * License GPL v3 * Update readme
2019-01-24 13:04:48 +00:00
try:
2019-01-30 12:42:06 +00:00
from win import tzwin, tzwinlocal
Version 4.0.0 (#182) * Adjust refresh behavior * Fix favorites * Add option to mask info * Fix keymap delete * Fix empty show * Version bump 3.1.14 * Reset rescan flag * Fix subtitles encoding * Fix path verification * Fix update library Plug in remove library percentage * Fix unauthorized behavior Reprompt user with login * Fix series pooling * Version bump 3.1.15 * Fix for additional users Return all users, not just public users * Fix http potential errors Prevent from going further if {server} or {userid} is requested but not filled to avoid 401 errors * Fix extra fanart * Fix patch make a case insensitive search * Version bump 3.1.16 Additional logging, fix kodi source. * Fix library tags on update * Version bump 3.1.17 * Fix season artwork * Fix season artwork * Fix logging * Fix blank files sources * Add backup option * Fix userdata song * Transfer data.txt to data.json Use default port for webserver caching * Fix mixed content shortcut * Fix path encoding for patch Hopefully this works... * Fix source nonetype error Just incase, wrap in a try/except because it's not important. * Base fast sync on server time Try to fix music video refresh to prevent cursor from moving up. * Prep subfolders for dynamic Support homevideos for now * Fix empty artist, missing Title * Version bump 3.1.18a * Version bump for objects 171076013 * Notify user of large updates Give option to back out if the user wants to manually update the libraries * Fix sources.xml verification * Prevent error in monitor Put in place try/except in case data is None * Remember sync position for manual triggers Allow to resume sync on restart for manual user triggers (update, repair). Automatically refresh boxsets if movie library is selected. use waitForAbort and emby_should_stop prop to terminate threads * Update string for sync later * Add subfolders for dynamic movies * Small fixes * Version bump 3.1.19 * Fix fast sync try/except, default back to previous behavior. * Fix artwork * Change settings name To ensure it takes default value instead of previous value set in 3.0.34 * Fix transcode flac and live tv * Fix episodes for series pooling * Add live tv support * Version bump 3.1.20 * Revert "Small fixes" This reverts commit 9ec1fa35853352bb6c8a56da94e8c8bcc3843c07. * Version bump 3.1.21 * Fix playback starting server connection instance * Fix show update * Fix boxsets * Fix lastplayed * Patch to support pre 3.6 libraries * Fix slowness * Plug in settings for threading * Plug in settings for threading * Adjust sleep behavior * Version bump 3.1.22 * Fix server detection in monitor * Version bump 3.1.23 * Fix potential error with checksum * Fix missing new artists * Fix library sync Adjust lock, re-add screensaver deactivated during sync, prep compare sync, stop library updates from being processed before startup sync is completed * Version bump 3.1.25 * Fix local trailers * Adjust lock modification * Check db version * Prevent error from creating nodes The addon automatically creates nodes at startup with prefilled information. Prevent errors in the event something goes wrong. It will fix itself down the line, after user has logged in. * Version bump 3.1.26 * Revert "Version bump 3.1.26" This reverts commit c583a69a4b9bb8af160cfb564485cc59da20fca7. * Fix screensaver toggle * Fix source selection for direct stream * Version bump 3.1.26 * Add progress for updates * Revise progress bar Fix typos and subsetting * content notification * Remove content with update library Now remove irrelevant content as well * Fix slowness * Version bump 3.1.27 * Stop trying to get items if server offline * Fix content type for dynamic music * Fix resume sync Now save progress, unless exited due to path validation * Fix artwork for shortcuts on profile switch * Add force transcode settings * Fix audiobooks back to video type Add shortcuts. Audiobook can't be music type otherwise it break resume behavior and it won't play the right item. Has to be video type. * Update general info To finish, download and installation * Update README.md * Move welcome message to service * Prevent patch loop Try once, then let it go, to avoid locking user in a restart loop * Review library threads * Prep for audiobook transcode Still need to implement universal for audio transcode * Version bump 3.1.28 * Fix emby database locked * Fix regression to welcome message * Version bump 3.1.29 * Adjust playback Allow direct play for http streams * Ensure all threads are terminated correctly * Fix empty results due to error 500 * Fix boxset refresh * Fix resume sync behavior Allow to complete the startup sync in the event user backs out of resume sync * Version bump 3.1.30 * Update patch Move patch from cache to addon_data. No longer need to restart Kodi to apply the first patch. * Fix inital sync leading to fast sync * Fix user settings Due to api change in 3.6.0.55 * krypton update * Adjust for resume settings With .55 the resume setting is set per library. Instead query server to see if the item is played to offer delete * Restart service upon check for updates To reload the new objects module. * Fix update library Only do the compare when user selects update library, also add a restart service option in the add-on settings > advanced * Version bump 3.1.31 * Update dependencies * Update FR translation * Update DE translation * Add translation * Support up next * Small service adjustment * Krypton update to support upnext * Add a verification onwake Somehow, Kodi can trigger OnWake without first trigger OnSleep. * Fix loading if special char in path * Add logging and small fixes Prepare userdata by date modified * Version bump 3.1.32 * Change default behavior of startup dialog In case it is forced closed by Kodi, allow the sync to proceed * Ensure deliveryurl is an actual url * Update README.md * Fix nextup * Fix dynamic widgets * Detect coreelect, etc * Fix progress report Silent RefreshProgress in websocket * Follow emby settings for subtitles * Version bump 3.1.33 * Add Italian translation * Fix playback for server 3.6.0.61 * Version bump 3.1.34a * Add silent catch for errors * Adjust playback progress monitor Only track progress report if the item is an emby item * Fix subtitles not following server settings * Add remove libraries, fix mixed libraries * Fix live tv For now, use transcode since direct play returns a 127.0.0.1 unusable address as the path. * Allow live tv to direct stream * Fix LiveTV * Add setting to sync during playback * Fix updates * Fix encoding error * Add optional rotten tomatoes option * Version bump 3.1.35 * Fix emby connect auth string Was preventing proper device detection when using emby connect, play to, etc. * Add setup RT * Fix audio/sub change Only for addon playback * Add developer mode * Update patch Check for updates + dev = forced grab from github * Fix RT string * Fix patch Allow dev mode to redownload zip * Fix patch ugh sleep!! * Verify patch connection * Version bump 3.1.36 * Fix libraries being wiped Catch errors to prevent false positive * Add dateutil library * Prep convert to local time * Fix string * Prep for multi db version support * Fix service restart * Add shortcut restart addon Add notification * Add database discovery * Ensure previous playback terminated * Update translation New: Polish, Dutch Updated: German, French, Italian * Version bump 3.1.37 * Quick fix for new library dateutil * Catch error for dateutil In the event the server has some weird date that can't be converted * Version bump 3.1.38 * Fix dateutil import * Fix db discovery Ignore emby.db * Version bump 3.1.39 * Add a delay if setup not completed Avoid crash from everything loading at once. * Fix database discovery Add table verification + date modified verification * Container optional playutils * Version bump 3.1.40 * Adjust database discovery Compare loaded vs discovered to avoid loading old databases by accident. * Version bump 3.1.41 * Fix discovery toggle * Version bump 3.1.42 * Add webservice for playback prep * Fix service restart * Version bump 3.1.43 * Update default sync indicator Based on overall feedback * Fix check update * Fix if server is selected but unavailable * Support songs without albums * Fix encode and params * Increase retry timeout * Fix update generating duplicates * Add manage libraries Too many entries * Fix database discovery * Fixed transcode via context menu * Fix context transcode * Quiet webservice * Update Krypton objects * Fix database discovery prompt * fixed video listitem issues for krypton * load all item details for playlists * Fix playlist * Version bump 3.1.44 * Fix force hi10p transcoding behavior Fixes the "Force Hi10p transcoding" option to only apply to h264 video codecs * Clear playlist on player.onstop * Don't clear playlist if busy spinner is active * Fix case sensitive issue at calling the log function * fix db stuff (#164) * Reload objects upon initial setup * Fix database discovery ignore db-journal * Update translation German, Italian * Use LastConnectionMode for server test * Fix compare sync * Version bump 3.1.45 * Ensure widgets get updated Container.Refresh alone doesn't seem to work * Update database discovery * Re-add texture to database discovery * Add option to enable/disable service * Remove unused strings * Fix object reload upon restart service * Update Krypton objects * Update translation Dutch, Polish * Version bump 3.1.46 * Adjust client api * Adjust subtitles behavior * Fix string typo * Only run one full sync instance Prevent user from launching multiple syncs and freezing the add-on. * added "playlists" to wnodes * Disable Audiobooks Server doesn't have a set structure yet. This feature is broken atm. * Version bump 4.0.0 * License GPL v3 * Update readme
2019-01-24 13:04:48 +00:00
except ImportError:
tzwin = tzwinlocal = None
ZERO = datetime.timedelta(0)
EPOCH = datetime.datetime.utcfromtimestamp(0)
EPOCHORDINAL = EPOCH.toordinal()
@six.add_metaclass(_TzSingleton)
class tzutc(datetime.tzinfo):
"""
This is a tzinfo object that represents the UTC time zone.
**Examples:**
.. doctest::
>>> from datetime import *
>>> from dateutil.tz import *
>>> datetime.now()
datetime.datetime(2003, 9, 27, 9, 40, 1, 521290)
>>> datetime.now(tzutc())
datetime.datetime(2003, 9, 27, 12, 40, 12, 156379, tzinfo=tzutc())
>>> datetime.now(tzutc()).tzname()
'UTC'
.. versionchanged:: 2.7.0
``tzutc()`` is now a singleton, so the result of ``tzutc()`` will
always return the same object.
.. doctest::
>>> from dateutil.tz import tzutc, UTC
>>> tzutc() is tzutc()
True
>>> tzutc() is UTC
True
"""
def utcoffset(self, dt):
return ZERO
def dst(self, dt):
return ZERO
@tzname_in_python2
def tzname(self, dt):
return "UTC"
def is_ambiguous(self, dt):
"""
Whether or not the "wall time" of a given datetime is ambiguous in this
zone.
:param dt:
A :py:class:`datetime.datetime`, naive or time zone aware.
:return:
Returns ``True`` if ambiguous, ``False`` otherwise.
.. versionadded:: 2.6.0
"""
return False
@_validate_fromutc_inputs
def fromutc(self, dt):
"""
Fast track version of fromutc() returns the original ``dt`` object for
any valid :py:class:`datetime.datetime` object.
"""
return dt
def __eq__(self, other):
if not isinstance(other, (tzutc, tzoffset)):
return NotImplemented
return (isinstance(other, tzutc) or
(isinstance(other, tzoffset) and other._offset == ZERO))
__hash__ = None
def __ne__(self, other):
return not (self == other)
def __repr__(self):
return "%s()" % self.__class__.__name__
__reduce__ = object.__reduce__
@six.add_metaclass(_TzOffsetFactory)
class tzoffset(datetime.tzinfo):
"""
A simple class for representing a fixed offset from UTC.
:param name:
The timezone name, to be returned when ``tzname()`` is called.
:param offset:
The time zone offset in seconds, or (since version 2.6.0, represented
as a :py:class:`datetime.timedelta` object).
"""
def __init__(self, name, offset):
self._name = name
try:
# Allow a timedelta
offset = offset.total_seconds()
except (TypeError, AttributeError):
pass
self._offset = datetime.timedelta(seconds=offset)
def utcoffset(self, dt):
return self._offset
def dst(self, dt):
return ZERO
@tzname_in_python2
def tzname(self, dt):
return self._name
@_validate_fromutc_inputs
def fromutc(self, dt):
return dt + self._offset
def is_ambiguous(self, dt):
"""
Whether or not the "wall time" of a given datetime is ambiguous in this
zone.
:param dt:
A :py:class:`datetime.datetime`, naive or time zone aware.
:return:
Returns ``True`` if ambiguous, ``False`` otherwise.
.. versionadded:: 2.6.0
"""
return False
def __eq__(self, other):
if not isinstance(other, tzoffset):
return NotImplemented
return self._offset == other._offset
__hash__ = None
def __ne__(self, other):
return not (self == other)
def __repr__(self):
return "%s(%s, %s)" % (self.__class__.__name__,
repr(self._name),
int(self._offset.total_seconds()))
__reduce__ = object.__reduce__
class tzlocal(_tzinfo):
"""
A :class:`tzinfo` subclass built around the ``time`` timezone functions.
"""
def __init__(self):
super(tzlocal, self).__init__()
self._std_offset = datetime.timedelta(seconds=-time.timezone)
if time.daylight:
self._dst_offset = datetime.timedelta(seconds=-time.altzone)
else:
self._dst_offset = self._std_offset
self._dst_saved = self._dst_offset - self._std_offset
self._hasdst = bool(self._dst_saved)
self._tznames = tuple(time.tzname)
def utcoffset(self, dt):
if dt is None and self._hasdst:
return None
if self._isdst(dt):
return self._dst_offset
else:
return self._std_offset
def dst(self, dt):
if dt is None and self._hasdst:
return None
if self._isdst(dt):
return self._dst_offset - self._std_offset
else:
return ZERO
@tzname_in_python2
def tzname(self, dt):
return self._tznames[self._isdst(dt)]
def is_ambiguous(self, dt):
"""
Whether or not the "wall time" of a given datetime is ambiguous in this
zone.
:param dt:
A :py:class:`datetime.datetime`, naive or time zone aware.
:return:
Returns ``True`` if ambiguous, ``False`` otherwise.
.. versionadded:: 2.6.0
"""
naive_dst = self._naive_is_dst(dt)
return (not naive_dst and
(naive_dst != self._naive_is_dst(dt - self._dst_saved)))
def _naive_is_dst(self, dt):
timestamp = _datetime_to_timestamp(dt)
return time.localtime(timestamp + time.timezone).tm_isdst
def _isdst(self, dt, fold_naive=True):
# We can't use mktime here. It is unstable when deciding if
# the hour near to a change is DST or not.
#
# timestamp = time.mktime((dt.year, dt.month, dt.day, dt.hour,
# dt.minute, dt.second, dt.weekday(), 0, -1))
# return time.localtime(timestamp).tm_isdst
#
# The code above yields the following result:
#
# >>> import tz, datetime
# >>> t = tz.tzlocal()
# >>> datetime.datetime(2003,2,15,23,tzinfo=t).tzname()
# 'BRDT'
# >>> datetime.datetime(2003,2,16,0,tzinfo=t).tzname()
# 'BRST'
# >>> datetime.datetime(2003,2,15,23,tzinfo=t).tzname()
# 'BRST'
# >>> datetime.datetime(2003,2,15,22,tzinfo=t).tzname()
# 'BRDT'
# >>> datetime.datetime(2003,2,15,23,tzinfo=t).tzname()
# 'BRDT'
#
# Here is a more stable implementation:
#
if not self._hasdst:
return False
# Check for ambiguous times:
dstval = self._naive_is_dst(dt)
fold = getattr(dt, 'fold', None)
if self.is_ambiguous(dt):
if fold is not None:
return not self._fold(dt)
else:
return True
return dstval
def __eq__(self, other):
if isinstance(other, tzlocal):
return (self._std_offset == other._std_offset and
self._dst_offset == other._dst_offset)
elif isinstance(other, tzutc):
return (not self._hasdst and
self._tznames[0] in {'UTC', 'GMT'} and
self._std_offset == ZERO)
elif isinstance(other, tzoffset):
return (not self._hasdst and
self._tznames[0] == other._name and
self._std_offset == other._offset)
else:
return NotImplemented
__hash__ = None
def __ne__(self, other):
return not (self == other)
def __repr__(self):
return "%s()" % self.__class__.__name__
__reduce__ = object.__reduce__
class _ttinfo(object):
__slots__ = ["offset", "delta", "isdst", "abbr",
"isstd", "isgmt", "dstoffset"]
def __init__(self):
for attr in self.__slots__:
setattr(self, attr, None)
def __repr__(self):
l = []
for attr in self.__slots__:
value = getattr(self, attr)
if value is not None:
l.append("%s=%s" % (attr, repr(value)))
return "%s(%s)" % (self.__class__.__name__, ", ".join(l))
def __eq__(self, other):
if not isinstance(other, _ttinfo):
return NotImplemented
return (self.offset == other.offset and
self.delta == other.delta and
self.isdst == other.isdst and
self.abbr == other.abbr and
self.isstd == other.isstd and
self.isgmt == other.isgmt and
self.dstoffset == other.dstoffset)
__hash__ = None
def __ne__(self, other):
return not (self == other)
def __getstate__(self):
state = {}
for name in self.__slots__:
state[name] = getattr(self, name, None)
return state
def __setstate__(self, state):
for name in self.__slots__:
if name in state:
setattr(self, name, state[name])
class _tzfile(object):
"""
Lightweight class for holding the relevant transition and time zone
information read from binary tzfiles.
"""
attrs = ['trans_list', 'trans_list_utc', 'trans_idx', 'ttinfo_list',
'ttinfo_std', 'ttinfo_dst', 'ttinfo_before', 'ttinfo_first']
def __init__(self, **kwargs):
for attr in self.attrs:
setattr(self, attr, kwargs.get(attr, None))
class tzfile(_tzinfo):
"""
This is a ``tzinfo`` subclass thant allows one to use the ``tzfile(5)``
format timezone files to extract current and historical zone information.
:param fileobj:
This can be an opened file stream or a file name that the time zone
information can be read from.
:param filename:
This is an optional parameter specifying the source of the time zone
information in the event that ``fileobj`` is a file object. If omitted
and ``fileobj`` is a file stream, this parameter will be set either to
``fileobj``'s ``name`` attribute or to ``repr(fileobj)``.
See `Sources for Time Zone and Daylight Saving Time Data
<https://data.iana.org/time-zones/tz-link.html>`_ for more information.
Time zone files can be compiled from the `IANA Time Zone database files
<https://www.iana.org/time-zones>`_ with the `zic time zone compiler
<https://www.freebsd.org/cgi/man.cgi?query=zic&sektion=8>`_
.. note::
Only construct a ``tzfile`` directly if you have a specific timezone
file on disk that you want to read into a Python ``tzinfo`` object.
If you want to get a ``tzfile`` representing a specific IANA zone,
(e.g. ``'America/New_York'``), you should call
:func:`dateutil.tz.gettz` with the zone identifier.
**Examples:**
Using the US Eastern time zone as an example, we can see that a ``tzfile``
provides time zone information for the standard Daylight Saving offsets:
.. testsetup:: tzfile
from dateutil.tz import gettz
from datetime import datetime
.. doctest:: tzfile
>>> NYC = gettz('America/New_York')
>>> NYC
tzfile('/usr/share/zoneinfo/America/New_York')
>>> print(datetime(2016, 1, 3, tzinfo=NYC)) # EST
2016-01-03 00:00:00-05:00
>>> print(datetime(2016, 7, 7, tzinfo=NYC)) # EDT
2016-07-07 00:00:00-04:00
The ``tzfile`` structure contains a fully history of the time zone,
so historical dates will also have the right offsets. For example, before
the adoption of the UTC standards, New York used local solar mean time:
.. doctest:: tzfile
>>> print(datetime(1901, 4, 12, tzinfo=NYC)) # LMT
1901-04-12 00:00:00-04:56
And during World War II, New York was on "Eastern War Time", which was a
state of permanent daylight saving time:
.. doctest:: tzfile
>>> print(datetime(1944, 2, 7, tzinfo=NYC)) # EWT
1944-02-07 00:00:00-04:00
"""
def __init__(self, fileobj, filename=None):
super(tzfile, self).__init__()
file_opened_here = False
if isinstance(fileobj, string_types):
self._filename = fileobj
fileobj = open(fileobj, 'rb')
file_opened_here = True
elif filename is not None:
self._filename = filename
elif hasattr(fileobj, "name"):
self._filename = fileobj.name
else:
self._filename = repr(fileobj)
if fileobj is not None:
if not file_opened_here:
fileobj = _ContextWrapper(fileobj)
with fileobj as file_stream:
tzobj = self._read_tzfile(file_stream)
self._set_tzdata(tzobj)
def _set_tzdata(self, tzobj):
""" Set the time zone data of this object from a _tzfile object """
# Copy the relevant attributes over as private attributes
for attr in _tzfile.attrs:
setattr(self, '_' + attr, getattr(tzobj, attr))
def _read_tzfile(self, fileobj):
out = _tzfile()
# From tzfile(5):
#
# The time zone information files used by tzset(3)
# begin with the magic characters "TZif" to identify
# them as time zone information files, followed by
# sixteen bytes reserved for future use, followed by
# six four-byte values of type long, written in a
# ``standard'' byte order (the high-order byte
# of the value is written first).
if fileobj.read(4).decode() != "TZif":
raise ValueError("magic not found")
fileobj.read(16)
(
# The number of UTC/local indicators stored in the file.
ttisgmtcnt,
# The number of standard/wall indicators stored in the file.
ttisstdcnt,
# The number of leap seconds for which data is
# stored in the file.
leapcnt,
# The number of "transition times" for which data
# is stored in the file.
timecnt,
# The number of "local time types" for which data
# is stored in the file (must not be zero).
typecnt,
# The number of characters of "time zone
# abbreviation strings" stored in the file.
charcnt,
) = struct.unpack(">6l", fileobj.read(24))
# The above header is followed by tzh_timecnt four-byte
# values of type long, sorted in ascending order.
# These values are written in ``standard'' byte order.
# Each is used as a transition time (as returned by
# time(2)) at which the rules for computing local time
# change.
if timecnt:
out.trans_list_utc = list(struct.unpack(">%dl" % timecnt,
fileobj.read(timecnt*4)))
else:
out.trans_list_utc = []
# Next come tzh_timecnt one-byte values of type unsigned
# char; each one tells which of the different types of
# ``local time'' types described in the file is associated
# with the same-indexed transition time. These values
# serve as indices into an array of ttinfo structures that
# appears next in the file.
if timecnt:
out.trans_idx = struct.unpack(">%dB" % timecnt,
fileobj.read(timecnt))
else:
out.trans_idx = []
# Each ttinfo structure is written as a four-byte value
# for tt_gmtoff of type long, in a standard byte
# order, followed by a one-byte value for tt_isdst
# and a one-byte value for tt_abbrind. In each
# structure, tt_gmtoff gives the number of
# seconds to be added to UTC, tt_isdst tells whether
# tm_isdst should be set by localtime(3), and
# tt_abbrind serves as an index into the array of
# time zone abbreviation characters that follow the
# ttinfo structure(s) in the file.
ttinfo = []
for i in range(typecnt):
ttinfo.append(struct.unpack(">lbb", fileobj.read(6)))
abbr = fileobj.read(charcnt).decode()
# Then there are tzh_leapcnt pairs of four-byte
# values, written in standard byte order; the
# first value of each pair gives the time (as
# returned by time(2)) at which a leap second
# occurs; the second gives the total number of
# leap seconds to be applied after the given time.
# The pairs of values are sorted in ascending order
# by time.
# Not used, for now (but seek for correct file position)
if leapcnt:
fileobj.seek(leapcnt * 8, os.SEEK_CUR)
# Then there are tzh_ttisstdcnt standard/wall
# indicators, each stored as a one-byte value;
# they tell whether the transition times associated
# with local time types were specified as standard
# time or wall clock time, and are used when
# a time zone file is used in handling POSIX-style
# time zone environment variables.
if ttisstdcnt:
isstd = struct.unpack(">%db" % ttisstdcnt,
fileobj.read(ttisstdcnt))
# Finally, there are tzh_ttisgmtcnt UTC/local
# indicators, each stored as a one-byte value;
# they tell whether the transition times associated
# with local time types were specified as UTC or
# local time, and are used when a time zone file
# is used in handling POSIX-style time zone envi-
# ronment variables.
if ttisgmtcnt:
isgmt = struct.unpack(">%db" % ttisgmtcnt,
fileobj.read(ttisgmtcnt))
# Build ttinfo list
out.ttinfo_list = []
for i in range(typecnt):
gmtoff, isdst, abbrind = ttinfo[i]
# Round to full-minutes if that's not the case. Python's
# datetime doesn't accept sub-minute timezones. Check
# http://python.org/sf/1447945 for some information.
gmtoff = 60 * ((gmtoff + 30) // 60)
tti = _ttinfo()
tti.offset = gmtoff
tti.dstoffset = datetime.timedelta(0)
tti.delta = datetime.timedelta(seconds=gmtoff)
tti.isdst = isdst
tti.abbr = abbr[abbrind:abbr.find('\x00', abbrind)]
tti.isstd = (ttisstdcnt > i and isstd[i] != 0)
tti.isgmt = (ttisgmtcnt > i and isgmt[i] != 0)
out.ttinfo_list.append(tti)
# Replace ttinfo indexes for ttinfo objects.
out.trans_idx = [out.ttinfo_list[idx] for idx in out.trans_idx]
# Set standard, dst, and before ttinfos. before will be
# used when a given time is before any transitions,
# and will be set to the first non-dst ttinfo, or to
# the first dst, if all of them are dst.
out.ttinfo_std = None
out.ttinfo_dst = None
out.ttinfo_before = None
if out.ttinfo_list:
if not out.trans_list_utc:
out.ttinfo_std = out.ttinfo_first = out.ttinfo_list[0]
else:
for i in range(timecnt-1, -1, -1):
tti = out.trans_idx[i]
if not out.ttinfo_std and not tti.isdst:
out.ttinfo_std = tti
elif not out.ttinfo_dst and tti.isdst:
out.ttinfo_dst = tti
if out.ttinfo_std and out.ttinfo_dst:
break
else:
if out.ttinfo_dst and not out.ttinfo_std:
out.ttinfo_std = out.ttinfo_dst
for tti in out.ttinfo_list:
if not tti.isdst:
out.ttinfo_before = tti
break
else:
out.ttinfo_before = out.ttinfo_list[0]
# Now fix transition times to become relative to wall time.
#
# I'm not sure about this. In my tests, the tz source file
# is setup to wall time, and in the binary file isstd and
# isgmt are off, so it should be in wall time. OTOH, it's
# always in gmt time. Let me know if you have comments
# about this.
laststdoffset = None
out.trans_list = []
for i, tti in enumerate(out.trans_idx):
if not tti.isdst:
offset = tti.offset
laststdoffset = offset
else:
if laststdoffset is not None:
# Store the DST offset as well and update it in the list
tti.dstoffset = tti.offset - laststdoffset
out.trans_idx[i] = tti
offset = laststdoffset or 0
out.trans_list.append(out.trans_list_utc[i] + offset)
# In case we missed any DST offsets on the way in for some reason, make
# a second pass over the list, looking for the /next/ DST offset.
laststdoffset = None
for i in reversed(range(len(out.trans_idx))):
tti = out.trans_idx[i]
if tti.isdst:
if not (tti.dstoffset or laststdoffset is None):
tti.dstoffset = tti.offset - laststdoffset
else:
laststdoffset = tti.offset
if not isinstance(tti.dstoffset, datetime.timedelta):
tti.dstoffset = datetime.timedelta(seconds=tti.dstoffset)
out.trans_idx[i] = tti
out.trans_idx = tuple(out.trans_idx)
out.trans_list = tuple(out.trans_list)
out.trans_list_utc = tuple(out.trans_list_utc)
return out
def _find_last_transition(self, dt, in_utc=False):
# If there's no list, there are no transitions to find
if not self._trans_list:
return None
timestamp = _datetime_to_timestamp(dt)
# Find where the timestamp fits in the transition list - if the
# timestamp is a transition time, it's part of the "after" period.
trans_list = self._trans_list_utc if in_utc else self._trans_list
idx = bisect.bisect_right(trans_list, timestamp)
# We want to know when the previous transition was, so subtract off 1
return idx - 1
def _get_ttinfo(self, idx):
# For no list or after the last transition, default to _ttinfo_std
if idx is None or (idx + 1) >= len(self._trans_list):
return self._ttinfo_std
# If there is a list and the time is before it, return _ttinfo_before
if idx < 0:
return self._ttinfo_before
return self._trans_idx[idx]
def _find_ttinfo(self, dt):
idx = self._resolve_ambiguous_time(dt)
return self._get_ttinfo(idx)
def fromutc(self, dt):
"""
The ``tzfile`` implementation of :py:func:`datetime.tzinfo.fromutc`.
:param dt:
A :py:class:`datetime.datetime` object.
:raises TypeError:
Raised if ``dt`` is not a :py:class:`datetime.datetime` object.
:raises ValueError:
Raised if this is called with a ``dt`` which does not have this
``tzinfo`` attached.
:return:
Returns a :py:class:`datetime.datetime` object representing the
wall time in ``self``'s time zone.
"""
# These isinstance checks are in datetime.tzinfo, so we'll preserve
# them, even if we don't care about duck typing.
if not isinstance(dt, datetime.datetime):
raise TypeError("fromutc() requires a datetime argument")
if dt.tzinfo is not self:
raise ValueError("dt.tzinfo is not self")
# First treat UTC as wall time and get the transition we're in.
idx = self._find_last_transition(dt, in_utc=True)
tti = self._get_ttinfo(idx)
dt_out = dt + datetime.timedelta(seconds=tti.offset)
fold = self.is_ambiguous(dt_out, idx=idx)
return enfold(dt_out, fold=int(fold))
def is_ambiguous(self, dt, idx=None):
"""
Whether or not the "wall time" of a given datetime is ambiguous in this
zone.
:param dt:
A :py:class:`datetime.datetime`, naive or time zone aware.
:return:
Returns ``True`` if ambiguous, ``False`` otherwise.
.. versionadded:: 2.6.0
"""
if idx is None:
idx = self._find_last_transition(dt)
# Calculate the difference in offsets from current to previous
timestamp = _datetime_to_timestamp(dt)
tti = self._get_ttinfo(idx)
if idx is None or idx <= 0:
return False
od = self._get_ttinfo(idx - 1).offset - tti.offset
tt = self._trans_list[idx] # Transition time
return timestamp < tt + od
def _resolve_ambiguous_time(self, dt):
idx = self._find_last_transition(dt)
# If we have no transitions, return the index
_fold = self._fold(dt)
if idx is None or idx == 0:
return idx
# If it's ambiguous and we're in a fold, shift to a different index.
idx_offset = int(not _fold and self.is_ambiguous(dt, idx))
return idx - idx_offset
def utcoffset(self, dt):
if dt is None:
return None
if not self._ttinfo_std:
return ZERO
return self._find_ttinfo(dt).delta
def dst(self, dt):
if dt is None:
return None
if not self._ttinfo_dst:
return ZERO
tti = self._find_ttinfo(dt)
if not tti.isdst:
return ZERO
# The documentation says that utcoffset()-dst() must
# be constant for every dt.
return tti.dstoffset
@tzname_in_python2
def tzname(self, dt):
if not self._ttinfo_std or dt is None:
return None
return self._find_ttinfo(dt).abbr
def __eq__(self, other):
if not isinstance(other, tzfile):
return NotImplemented
return (self._trans_list == other._trans_list and
self._trans_idx == other._trans_idx and
self._ttinfo_list == other._ttinfo_list)
__hash__ = None
def __ne__(self, other):
return not (self == other)
def __repr__(self):
return "%s(%s)" % (self.__class__.__name__, repr(self._filename))
def __reduce__(self):
return self.__reduce_ex__(None)
def __reduce_ex__(self, protocol):
return (self.__class__, (None, self._filename), self.__dict__)
class tzrange(tzrangebase):
"""
The ``tzrange`` object is a time zone specified by a set of offsets and
abbreviations, equivalent to the way the ``TZ`` variable can be specified
in POSIX-like systems, but using Python delta objects to specify DST
start, end and offsets.
:param stdabbr:
The abbreviation for standard time (e.g. ``'EST'``).
:param stdoffset:
An integer or :class:`datetime.timedelta` object or equivalent
specifying the base offset from UTC.
If unspecified, +00:00 is used.
:param dstabbr:
The abbreviation for DST / "Summer" time (e.g. ``'EDT'``).
If specified, with no other DST information, DST is assumed to occur
and the default behavior or ``dstoffset``, ``start`` and ``end`` is
used. If unspecified and no other DST information is specified, it
is assumed that this zone has no DST.
If this is unspecified and other DST information is *is* specified,
DST occurs in the zone but the time zone abbreviation is left
unchanged.
:param dstoffset:
A an integer or :class:`datetime.timedelta` object or equivalent
specifying the UTC offset during DST. If unspecified and any other DST
information is specified, it is assumed to be the STD offset +1 hour.
:param start:
A :class:`relativedelta.relativedelta` object or equivalent specifying
the time and time of year that daylight savings time starts. To
specify, for example, that DST starts at 2AM on the 2nd Sunday in
March, pass:
``relativedelta(hours=2, month=3, day=1, weekday=SU(+2))``
If unspecified and any other DST information is specified, the default
value is 2 AM on the first Sunday in April.
:param end:
A :class:`relativedelta.relativedelta` object or equivalent
representing the time and time of year that daylight savings time
ends, with the same specification method as in ``start``. One note is
that this should point to the first time in the *standard* zone, so if
a transition occurs at 2AM in the DST zone and the clocks are set back
1 hour to 1AM, set the ``hours`` parameter to +1.
**Examples:**
.. testsetup:: tzrange
from dateutil.tz import tzrange, tzstr
.. doctest:: tzrange
>>> tzstr('EST5EDT') == tzrange("EST", -18000, "EDT")
True
>>> from dateutil.relativedelta import *
>>> range1 = tzrange("EST", -18000, "EDT")
>>> range2 = tzrange("EST", -18000, "EDT", -14400,
... relativedelta(hours=+2, month=4, day=1,
... weekday=SU(+1)),
... relativedelta(hours=+1, month=10, day=31,
... weekday=SU(-1)))
>>> tzstr('EST5EDT') == range1 == range2
True
"""
def __init__(self, stdabbr, stdoffset=None,
dstabbr=None, dstoffset=None,
start=None, end=None):
global relativedelta
from dateutil import relativedelta
self._std_abbr = stdabbr
self._dst_abbr = dstabbr
try:
stdoffset = stdoffset.total_seconds()
except (TypeError, AttributeError):
pass
try:
dstoffset = dstoffset.total_seconds()
except (TypeError, AttributeError):
pass
if stdoffset is not None:
self._std_offset = datetime.timedelta(seconds=stdoffset)
else:
self._std_offset = ZERO
if dstoffset is not None:
self._dst_offset = datetime.timedelta(seconds=dstoffset)
elif dstabbr and stdoffset is not None:
self._dst_offset = self._std_offset + datetime.timedelta(hours=+1)
else:
self._dst_offset = ZERO
if dstabbr and start is None:
self._start_delta = relativedelta.relativedelta(
hours=+2, month=4, day=1, weekday=relativedelta.SU(+1))
else:
self._start_delta = start
if dstabbr and end is None:
self._end_delta = relativedelta.relativedelta(
hours=+1, month=10, day=31, weekday=relativedelta.SU(-1))
else:
self._end_delta = end
self._dst_base_offset_ = self._dst_offset - self._std_offset
self.hasdst = bool(self._start_delta)
def transitions(self, year):
"""
For a given year, get the DST on and off transition times, expressed
always on the standard time side. For zones with no transitions, this
function returns ``None``.
:param year:
The year whose transitions you would like to query.
:return:
Returns a :class:`tuple` of :class:`datetime.datetime` objects,
``(dston, dstoff)`` for zones with an annual DST transition, or
``None`` for fixed offset zones.
"""
if not self.hasdst:
return None
base_year = datetime.datetime(year, 1, 1)
start = base_year + self._start_delta
end = base_year + self._end_delta
return (start, end)
def __eq__(self, other):
if not isinstance(other, tzrange):
return NotImplemented
return (self._std_abbr == other._std_abbr and
self._dst_abbr == other._dst_abbr and
self._std_offset == other._std_offset and
self._dst_offset == other._dst_offset and
self._start_delta == other._start_delta and
self._end_delta == other._end_delta)
@property
def _dst_base_offset(self):
return self._dst_base_offset_
@six.add_metaclass(_TzStrFactory)
class tzstr(tzrange):
"""
``tzstr`` objects are time zone objects specified by a time-zone string as
it would be passed to a ``TZ`` variable on POSIX-style systems (see
the `GNU C Library: TZ Variable`_ for more details).
There is one notable exception, which is that POSIX-style time zones use an
inverted offset format, so normally ``GMT+3`` would be parsed as an offset
3 hours *behind* GMT. The ``tzstr`` time zone object will parse this as an
offset 3 hours *ahead* of GMT. If you would like to maintain the POSIX
behavior, pass a ``True`` value to ``posix_offset``.
The :class:`tzrange` object provides the same functionality, but is
specified using :class:`relativedelta.relativedelta` objects. rather than
strings.
:param s:
A time zone string in ``TZ`` variable format. This can be a
:class:`bytes` (2.x: :class:`str`), :class:`str` (2.x:
:class:`unicode`) or a stream emitting unicode characters
(e.g. :class:`StringIO`).
:param posix_offset:
Optional. If set to ``True``, interpret strings such as ``GMT+3`` or
``UTC+3`` as being 3 hours *behind* UTC rather than ahead, per the
POSIX standard.
.. caution::
Prior to version 2.7.0, this function also supported time zones
in the format:
* ``EST5EDT,4,0,6,7200,10,0,26,7200,3600``
* ``EST5EDT,4,1,0,7200,10,-1,0,7200,3600``
This format is non-standard and has been deprecated; this function
will raise a :class:`DeprecatedTZFormatWarning` until
support is removed in a future version.
.. _`GNU C Library: TZ Variable`:
https://www.gnu.org/software/libc/manual/html_node/TZ-Variable.html
"""
def __init__(self, s, posix_offset=False):
global parser
from dateutil.parser import _parser as parser
self._s = s
res = parser._parsetz(s)
if res is None or res.any_unused_tokens:
raise ValueError("unknown string format")
# Here we break the compatibility with the TZ variable handling.
# GMT-3 actually *means* the timezone -3.
if res.stdabbr in ("GMT", "UTC") and not posix_offset:
res.stdoffset *= -1
# We must initialize it first, since _delta() needs
# _std_offset and _dst_offset set. Use False in start/end
# to avoid building it two times.
tzrange.__init__(self, res.stdabbr, res.stdoffset,
res.dstabbr, res.dstoffset,
start=False, end=False)
if not res.dstabbr:
self._start_delta = None
self._end_delta = None
else:
self._start_delta = self._delta(res.start)
if self._start_delta:
self._end_delta = self._delta(res.end, isend=1)
self.hasdst = bool(self._start_delta)
def _delta(self, x, isend=0):
from dateutil import relativedelta
kwargs = {}
if x.month is not None:
kwargs["month"] = x.month
if x.weekday is not None:
kwargs["weekday"] = relativedelta.weekday(x.weekday, x.week)
if x.week > 0:
kwargs["day"] = 1
else:
kwargs["day"] = 31
elif x.day:
kwargs["day"] = x.day
elif x.yday is not None:
kwargs["yearday"] = x.yday
elif x.jyday is not None:
kwargs["nlyearday"] = x.jyday
if not kwargs:
# Default is to start on first sunday of april, and end
# on last sunday of october.
if not isend:
kwargs["month"] = 4
kwargs["day"] = 1
kwargs["weekday"] = relativedelta.SU(+1)
else:
kwargs["month"] = 10
kwargs["day"] = 31
kwargs["weekday"] = relativedelta.SU(-1)
if x.time is not None:
kwargs["seconds"] = x.time
else:
# Default is 2AM.
kwargs["seconds"] = 7200
if isend:
# Convert to standard time, to follow the documented way
# of working with the extra hour. See the documentation
# of the tzinfo class.
delta = self._dst_offset - self._std_offset
kwargs["seconds"] -= delta.seconds + delta.days * 86400
return relativedelta.relativedelta(**kwargs)
def __repr__(self):
return "%s(%s)" % (self.__class__.__name__, repr(self._s))
class _tzicalvtzcomp(object):
def __init__(self, tzoffsetfrom, tzoffsetto, isdst,
tzname=None, rrule=None):
self.tzoffsetfrom = datetime.timedelta(seconds=tzoffsetfrom)
self.tzoffsetto = datetime.timedelta(seconds=tzoffsetto)
self.tzoffsetdiff = self.tzoffsetto - self.tzoffsetfrom
self.isdst = isdst
self.tzname = tzname
self.rrule = rrule
class _tzicalvtz(_tzinfo):
def __init__(self, tzid, comps=[]):
super(_tzicalvtz, self).__init__()
self._tzid = tzid
self._comps = comps
self._cachedate = []
self._cachecomp = []
self._cache_lock = _thread.allocate_lock()
def _find_comp(self, dt):
if len(self._comps) == 1:
return self._comps[0]
dt = dt.replace(tzinfo=None)
try:
with self._cache_lock:
return self._cachecomp[self._cachedate.index(
(dt, self._fold(dt)))]
except ValueError:
pass
lastcompdt = None
lastcomp = None
for comp in self._comps:
compdt = self._find_compdt(comp, dt)
if compdt and (not lastcompdt or lastcompdt < compdt):
lastcompdt = compdt
lastcomp = comp
if not lastcomp:
# RFC says nothing about what to do when a given
# time is before the first onset date. We'll look for the
# first standard component, or the first component, if
# none is found.
for comp in self._comps:
if not comp.isdst:
lastcomp = comp
break
else:
lastcomp = comp[0]
with self._cache_lock:
self._cachedate.insert(0, (dt, self._fold(dt)))
self._cachecomp.insert(0, lastcomp)
if len(self._cachedate) > 10:
self._cachedate.pop()
self._cachecomp.pop()
return lastcomp
def _find_compdt(self, comp, dt):
if comp.tzoffsetdiff < ZERO and self._fold(dt):
dt -= comp.tzoffsetdiff
compdt = comp.rrule.before(dt, inc=True)
return compdt
def utcoffset(self, dt):
if dt is None:
return None
return self._find_comp(dt).tzoffsetto
def dst(self, dt):
comp = self._find_comp(dt)
if comp.isdst:
return comp.tzoffsetdiff
else:
return ZERO
@tzname_in_python2
def tzname(self, dt):
return self._find_comp(dt).tzname
def __repr__(self):
return "<tzicalvtz %s>" % repr(self._tzid)
__reduce__ = object.__reduce__
class tzical(object):
"""
This object is designed to parse an iCalendar-style ``VTIMEZONE`` structure
as set out in `RFC 5545`_ Section 4.6.5 into one or more `tzinfo` objects.
:param `fileobj`:
A file or stream in iCalendar format, which should be UTF-8 encoded
with CRLF endings.
.. _`RFC 5545`: https://tools.ietf.org/html/rfc5545
"""
def __init__(self, fileobj):
global rrule
from dateutil import rrule
if isinstance(fileobj, string_types):
self._s = fileobj
# ical should be encoded in UTF-8 with CRLF
fileobj = open(fileobj, 'r')
else:
self._s = getattr(fileobj, 'name', repr(fileobj))
fileobj = _ContextWrapper(fileobj)
self._vtz = {}
with fileobj as fobj:
self._parse_rfc(fobj.read())
def keys(self):
"""
Retrieves the available time zones as a list.
"""
return list(self._vtz.keys())
def get(self, tzid=None):
"""
Retrieve a :py:class:`datetime.tzinfo` object by its ``tzid``.
:param tzid:
If there is exactly one time zone available, omitting ``tzid``
or passing :py:const:`None` value returns it. Otherwise a valid
key (which can be retrieved from :func:`keys`) is required.
:raises ValueError:
Raised if ``tzid`` is not specified but there are either more
or fewer than 1 zone defined.
:returns:
Returns either a :py:class:`datetime.tzinfo` object representing
the relevant time zone or :py:const:`None` if the ``tzid`` was
not found.
"""
if tzid is None:
if len(self._vtz) == 0:
raise ValueError("no timezones defined")
elif len(self._vtz) > 1:
raise ValueError("more than one timezone available")
tzid = next(iter(self._vtz))
return self._vtz.get(tzid)
def _parse_offset(self, s):
s = s.strip()
if not s:
raise ValueError("empty offset")
if s[0] in ('+', '-'):
signal = (-1, +1)[s[0] == '+']
s = s[1:]
else:
signal = +1
if len(s) == 4:
return (int(s[:2]) * 3600 + int(s[2:]) * 60) * signal
elif len(s) == 6:
return (int(s[:2]) * 3600 + int(s[2:4]) * 60 + int(s[4:])) * signal
else:
raise ValueError("invalid offset: " + s)
def _parse_rfc(self, s):
lines = s.splitlines()
if not lines:
raise ValueError("empty string")
# Unfold
i = 0
while i < len(lines):
line = lines[i].rstrip()
if not line:
del lines[i]
elif i > 0 and line[0] == " ":
lines[i-1] += line[1:]
del lines[i]
else:
i += 1
tzid = None
comps = []
invtz = False
comptype = None
for line in lines:
if not line:
continue
name, value = line.split(':', 1)
parms = name.split(';')
if not parms:
raise ValueError("empty property name")
name = parms[0].upper()
parms = parms[1:]
if invtz:
if name == "BEGIN":
if value in ("STANDARD", "DAYLIGHT"):
# Process component
pass
else:
raise ValueError("unknown component: "+value)
comptype = value
founddtstart = False
tzoffsetfrom = None
tzoffsetto = None
rrulelines = []
tzname = None
elif name == "END":
if value == "VTIMEZONE":
if comptype:
raise ValueError("component not closed: "+comptype)
if not tzid:
raise ValueError("mandatory TZID not found")
if not comps:
raise ValueError(
"at least one component is needed")
# Process vtimezone
self._vtz[tzid] = _tzicalvtz(tzid, comps)
invtz = False
elif value == comptype:
if not founddtstart:
raise ValueError("mandatory DTSTART not found")
if tzoffsetfrom is None:
raise ValueError(
"mandatory TZOFFSETFROM not found")
if tzoffsetto is None:
raise ValueError(
"mandatory TZOFFSETFROM not found")
# Process component
rr = None
if rrulelines:
rr = rrule.rrulestr("\n".join(rrulelines),
compatible=True,
ignoretz=True,
cache=True)
comp = _tzicalvtzcomp(tzoffsetfrom, tzoffsetto,
(comptype == "DAYLIGHT"),
tzname, rr)
comps.append(comp)
comptype = None
else:
raise ValueError("invalid component end: "+value)
elif comptype:
if name == "DTSTART":
# DTSTART in VTIMEZONE takes a subset of valid RRULE
# values under RFC 5545.
for parm in parms:
if parm != 'VALUE=DATE-TIME':
msg = ('Unsupported DTSTART param in ' +
'VTIMEZONE: ' + parm)
raise ValueError(msg)
rrulelines.append(line)
founddtstart = True
elif name in ("RRULE", "RDATE", "EXRULE", "EXDATE"):
rrulelines.append(line)
elif name == "TZOFFSETFROM":
if parms:
raise ValueError(
"unsupported %s parm: %s " % (name, parms[0]))
tzoffsetfrom = self._parse_offset(value)
elif name == "TZOFFSETTO":
if parms:
raise ValueError(
"unsupported TZOFFSETTO parm: "+parms[0])
tzoffsetto = self._parse_offset(value)
elif name == "TZNAME":
if parms:
raise ValueError(
"unsupported TZNAME parm: "+parms[0])
tzname = value
elif name == "COMMENT":
pass
else:
raise ValueError("unsupported property: "+name)
else:
if name == "TZID":
if parms:
raise ValueError(
"unsupported TZID parm: "+parms[0])
tzid = value
elif name in ("TZURL", "LAST-MODIFIED", "COMMENT"):
pass
else:
raise ValueError("unsupported property: "+name)
elif name == "BEGIN" and value == "VTIMEZONE":
tzid = None
comps = []
invtz = True
def __repr__(self):
return "%s(%s)" % (self.__class__.__name__, repr(self._s))
if sys.platform != "win32":
TZFILES = ["/etc/localtime", "localtime"]
TZPATHS = ["/usr/share/zoneinfo",
"/usr/lib/zoneinfo",
"/usr/share/lib/zoneinfo",
"/etc/zoneinfo"]
else:
TZFILES = []
TZPATHS = []
def __get_gettz():
tzlocal_classes = (tzlocal,)
if tzwinlocal is not None:
tzlocal_classes += (tzwinlocal,)
class GettzFunc(object):
"""
Retrieve a time zone object from a string representation
This function is intended to retrieve the :py:class:`tzinfo` subclass
that best represents the time zone that would be used if a POSIX
`TZ variable`_ were set to the same value.
If no argument or an empty string is passed to ``gettz``, local time
is returned:
.. code-block:: python3
>>> gettz()
tzfile('/etc/localtime')
This function is also the preferred way to map IANA tz database keys
to :class:`tzfile` objects:
.. code-block:: python3
>>> gettz('Pacific/Kiritimati')
tzfile('/usr/share/zoneinfo/Pacific/Kiritimati')
On Windows, the standard is extended to include the Windows-specific
zone names provided by the operating system:
.. code-block:: python3
>>> gettz('Egypt Standard Time')
tzwin('Egypt Standard Time')
Passing a GNU ``TZ`` style string time zone specification returns a
:class:`tzstr` object:
.. code-block:: python3
>>> gettz('AEST-10AEDT-11,M10.1.0/2,M4.1.0/3')
tzstr('AEST-10AEDT-11,M10.1.0/2,M4.1.0/3')
:param name:
A time zone name (IANA, or, on Windows, Windows keys), location of
a ``tzfile(5)`` zoneinfo file or ``TZ`` variable style time zone
specifier. An empty string, no argument or ``None`` is interpreted
as local time.
:return:
Returns an instance of one of ``dateutil``'s :py:class:`tzinfo`
subclasses.
.. versionchanged:: 2.7.0
After version 2.7.0, any two calls to ``gettz`` using the same
input strings will return the same object:
.. code-block:: python3
>>> tz.gettz('America/Chicago') is tz.gettz('America/Chicago')
True
In addition to improving performance, this ensures that
`"same zone" semantics`_ are used for datetimes in the same zone.
.. _`TZ variable`:
https://www.gnu.org/software/libc/manual/html_node/TZ-Variable.html
.. _`"same zone" semantics`:
https://blog.ganssle.io/articles/2018/02/aware-datetime-arithmetic.html
"""
def __init__(self):
self.__instances = {}
self._cache_lock = _thread.allocate_lock()
def __call__(self, name=None):
with self._cache_lock:
rv = self.__instances.get(name, None)
if rv is None:
rv = self.nocache(name=name)
if not (name is None or isinstance(rv, tzlocal_classes)):
# tzlocal is slightly more complicated than the other
# time zone providers because it depends on environment
# at construction time, so don't cache that.
self.__instances[name] = rv
return rv
def cache_clear(self):
with self._cache_lock:
self.__instances = {}
@staticmethod
def nocache(name=None):
"""A non-cached version of gettz"""
tz = None
if not name:
try:
name = os.environ["TZ"]
except KeyError:
pass
if name is None or name == ":":
for filepath in TZFILES:
if not os.path.isabs(filepath):
filename = filepath
for path in TZPATHS:
filepath = os.path.join(path, filename)
if os.path.isfile(filepath):
break
else:
continue
if os.path.isfile(filepath):
try:
tz = tzfile(filepath)
break
except (IOError, OSError, ValueError):
pass
else:
tz = tzlocal()
else:
if name.startswith(":"):
name = name[1:]
if os.path.isabs(name):
if os.path.isfile(name):
tz = tzfile(name)
else:
tz = None
else:
for path in TZPATHS:
filepath = os.path.join(path, name)
if not os.path.isfile(filepath):
filepath = filepath.replace(' ', '_')
if not os.path.isfile(filepath):
continue
try:
tz = tzfile(filepath)
break
except (IOError, OSError, ValueError):
pass
else:
tz = None
if tzwin is not None:
try:
tz = tzwin(name)
except WindowsError:
tz = None
if not tz:
from dateutil.zoneinfo import get_zonefile_instance
tz = get_zonefile_instance().get(name)
if not tz:
for c in name:
# name is not a tzstr unless it has at least
# one offset. For short values of "name", an
# explicit for loop seems to be the fastest way
# To determine if a string contains a digit
if c in "0123456789":
try:
tz = tzstr(name)
except ValueError:
pass
break
else:
if name in ("GMT", "UTC"):
tz = tzutc()
elif name in time.tzname:
tz = tzlocal()
return tz
return GettzFunc()
gettz = __get_gettz()
del __get_gettz
def datetime_exists(dt, tz=None):
"""
Given a datetime and a time zone, determine whether or not a given datetime
would fall in a gap.
:param dt:
A :class:`datetime.datetime` (whose time zone will be ignored if ``tz``
is provided.)
:param tz:
A :class:`datetime.tzinfo` with support for the ``fold`` attribute. If
``None`` or not provided, the datetime's own time zone will be used.
:return:
Returns a boolean value whether or not the "wall time" exists in
``tz``.
.. versionadded:: 2.7.0
"""
if tz is None:
if dt.tzinfo is None:
raise ValueError('Datetime is naive and no time zone provided.')
tz = dt.tzinfo
dt = dt.replace(tzinfo=None)
# This is essentially a test of whether or not the datetime can survive
# a round trip to UTC.
dt_rt = dt.replace(tzinfo=tz).astimezone(tzutc()).astimezone(tz)
dt_rt = dt_rt.replace(tzinfo=None)
return dt == dt_rt
def datetime_ambiguous(dt, tz=None):
"""
Given a datetime and a time zone, determine whether or not a given datetime
is ambiguous (i.e if there are two times differentiated only by their DST
status).
:param dt:
A :class:`datetime.datetime` (whose time zone will be ignored if ``tz``
is provided.)
:param tz:
A :class:`datetime.tzinfo` with support for the ``fold`` attribute. If
``None`` or not provided, the datetime's own time zone will be used.
:return:
Returns a boolean value whether or not the "wall time" is ambiguous in
``tz``.
.. versionadded:: 2.6.0
"""
if tz is None:
if dt.tzinfo is None:
raise ValueError('Datetime is naive and no time zone provided.')
tz = dt.tzinfo
# If a time zone defines its own "is_ambiguous" function, we'll use that.
is_ambiguous_fn = getattr(tz, 'is_ambiguous', None)
if is_ambiguous_fn is not None:
try:
return tz.is_ambiguous(dt)
except Exception:
pass
# If it doesn't come out and tell us it's ambiguous, we'll just check if
# the fold attribute has any effect on this particular date and time.
dt = dt.replace(tzinfo=tz)
wall_0 = enfold(dt, fold=0)
wall_1 = enfold(dt, fold=1)
same_offset = wall_0.utcoffset() == wall_1.utcoffset()
same_dst = wall_0.dst() == wall_1.dst()
return not (same_offset and same_dst)
def resolve_imaginary(dt):
"""
Given a datetime that may be imaginary, return an existing datetime.
This function assumes that an imaginary datetime represents what the
wall time would be in a zone had the offset transition not occurred, so
it will always fall forward by the transition's change in offset.
.. doctest::
>>> from dateutil import tz
>>> from datetime import datetime
>>> NYC = tz.gettz('America/New_York')
>>> print(tz.resolve_imaginary(datetime(2017, 3, 12, 2, 30, tzinfo=NYC)))
2017-03-12 03:30:00-04:00
>>> KIR = tz.gettz('Pacific/Kiritimati')
>>> print(tz.resolve_imaginary(datetime(1995, 1, 1, 12, 30, tzinfo=KIR)))
1995-01-02 12:30:00+14:00
As a note, :func:`datetime.astimezone` is guaranteed to produce a valid,
existing datetime, so a round-trip to and from UTC is sufficient to get
an extant datetime, however, this generally "falls back" to an earlier time
rather than falling forward to the STD side (though no guarantees are made
about this behavior).
:param dt:
A :class:`datetime.datetime` which may or may not exist.
:return:
Returns an existing :class:`datetime.datetime`. If ``dt`` was not
imaginary, the datetime returned is guaranteed to be the same object
passed to the function.
.. versionadded:: 2.7.0
"""
if dt.tzinfo is not None and not datetime_exists(dt):
curr_offset = (dt + datetime.timedelta(hours=24)).utcoffset()
old_offset = (dt - datetime.timedelta(hours=24)).utcoffset()
dt += curr_offset - old_offset
return dt
def _datetime_to_timestamp(dt):
"""
Convert a :class:`datetime.datetime` object to an epoch timestamp in
seconds since January 1, 1970, ignoring the time zone.
"""
return (dt.replace(tzinfo=None) - EPOCH).total_seconds()
class _ContextWrapper(object):
"""
Class for wrapping contexts so that they are passed through in a
with statement.
"""
def __init__(self, context):
self.context = context
def __enter__(self):
return self.context
def __exit__(*args, **kwargs):
pass
# vim:ts=4:sw=4:et