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gh-91298: Refine traversable (apply changes from importlib_resources 5.7.1) (#91623)

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* bpo-47142: Refine traversable (apply changes from importlib_resources 5.7.1)

* Replace changelog referencing github issue.
This commit is contained in:
Jason R. Coombs 2022-04-17 11:10:36 -04:00 • committed by GitHub
parent 67712e71b3
commit 7659681556
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4 changed files with 42 additions and 16 deletions
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15
Lib/importlib/resources/simple.py
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@ -99,10 +99,19 @@ class ResourceContainer(Traversable):
def open(self, *args, **kwargs):
raise IsADirectoryError()
def joinpath(self, name):
@staticmethod
def _flatten(compound_names):
for name in compound_names:
yield from name.split('/')
def joinpath(self, *descendants):
if not descendants:
return self
names = self._flatten(descendants)
target = next(names)
return next(
traversable for traversable in self.iterdir() if traversable.name == name
)
traversable for traversable in self.iterdir() if traversable.name == target
).joinpath(*names)
class TraversableReader(TraversableResources, SimpleReader):