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bpo-39791 native hooks for importlib.resources.files (GH-20576)

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* Provide native .files support on SourceFileLoader.

* Add native importlib.resources.files() support to zipimporter. Remove fallback support.

* make regen-all

* 📜🤖 Added by blurb_it.

* Move 'files' into the ResourceReader so it can carry the relevant module name context.

* Create 'importlib.readers' module and add FileReader to it.

* Add zip reader and rely on it for a TraversableResources object on zipimporter.

* Remove TraversableAdapter, no longer needed.

* Update blurb.

* Replace backslashes with forward slashes.

* Incorporate changes from importlib_metadata 2.0, finalizing the interface for extension via get_resource_reader.

Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
This commit is contained in:
Jason R. Coombs 2020-06-07 21:00:51 -04:00 • committed by GitHub
parent 972ab03276
commit 843c277656
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9 changed files with 2131 additions and 2372 deletions
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26
Lib/importlib/_bootstrap_external.py
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@ -982,32 +982,10 @@ class FileLoader:
with _io.FileIO(path, 'r') as file:
return file.read()
# ResourceReader ABC API.
@_check_name
def get_resource_reader(self, module):
if self.is_package(module):
return self
return None
def open_resource(self, resource):
path = _path_join(_path_split(self.path)[0], resource)
return _io.FileIO(path, 'r')
def resource_path(self, resource):
if not self.is_resource(resource):
raise FileNotFoundError
path = _path_join(_path_split(self.path)[0], resource)
return path
def is_resource(self, name):
if path_sep in name:
return False
path = _path_join(_path_split(self.path)[0], name)
return _path_isfile(path)
def contents(self):
return iter(_os.listdir(_path_split(self.path)[0]))
from importlib.readers import FileReader
return FileReader(self)
class SourceFileLoader(FileLoader, SourceLoader):