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55 lines
1.4 KiB
Python
55 lines
1.4 KiB
Python
from collections import namedtuple
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from collections.abc import Iterable, Mapping, MutableMapping
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def clean_none_dict_values(obj):
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"""
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Recursively remove keys with a value of None
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"""
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if not isinstance(obj, Iterable) or isinstance(obj, str):
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return obj
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queue = [obj]
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while queue:
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item = queue.pop()
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if isinstance(item, Mapping):
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mutable = isinstance(item, MutableMapping)
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remove = []
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for key, value in item.items():
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if value is None and mutable:
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remove.append(key)
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elif isinstance(value, str):
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continue
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elif isinstance(value, Iterable):
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queue.append(value)
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if mutable:
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# Remove keys with None value
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for key in remove:
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item.pop(key)
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elif isinstance(item, Iterable):
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for value in item:
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if value is None or isinstance(value, str):
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continue
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elif isinstance(value, Iterable):
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queue.append(value)
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return obj
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def sqlite_namedtuple_factory(cursor, row):
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"""
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Usage:
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con.row_factory = namedtuple_factory
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http://peter-hoffmann.com/2010/python-sqlite-namedtuple-factory.html
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"""
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fields = [col[0] for col in cursor.description]
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Row = namedtuple("Row", fields)
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return Row(*row)
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