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43 lines
1016 B
Python
43 lines
1016 B
Python
# Copyright (c) 2010-2022 openpyxl
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"""Collection of XML resources compatible across different Python versions"""
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import os
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def lxml_available():
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try:
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from lxml.etree import LXML_VERSION
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LXML = LXML_VERSION >= (3, 3, 1, 0)
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if not LXML:
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import warnings
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warnings.warn("The installed version of lxml is too old to be used with openpyxl")
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return False # we have it, but too old
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else:
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return True # we have it, and recent enough
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except ImportError:
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return False # we don't even have it
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def lxml_env_set():
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return os.environ.get("OPENPYXL_LXML", "True") == "True"
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LXML = lxml_available() and lxml_env_set()
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def defusedxml_available():
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try:
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import defusedxml # noqa
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except ImportError:
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return False
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else:
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return True
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def defusedxml_env_set():
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return os.environ.get("OPENPYXL_DEFUSEDXML", "True") == "True"
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DEFUSEDXML = defusedxml_available() and defusedxml_env_set()
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