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25 lines
867 B
Python
25 lines
867 B
Python
8 months ago
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from shutil import copyfileobj
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from werkzeug.datastructures import FileStorage
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try:
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from xlrd import xlsx
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except ImportError:
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pass
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else:
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from lxml import etree
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# xlrd.xlsx supports defusedxml, defusedxml's etree interface is broken
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# (missing ElementTree and thus ElementTree.iter) which causes a fallback to
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# Element.getiterator(), triggering a warning before 3.9 and an error from 3.9.
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#
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# We have defusedxml installed because zeep has a hard dep on defused and
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# doesn't want to drop it (mvantellingen/python-zeep#1014).
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#
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# Ignore the check and set the relevant flags directly using lxml as we have a
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# hard dependency on it.
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xlsx.ET = etree
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xlsx.ET_has_iterparse = True
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xlsx.Element_has_iter = True
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FileStorage.save = lambda self, dst, buffer_size=1<<20: copyfileobj(self.stream, dst, buffer_size)
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