Skip to content

Speed up pattern parsing in pathlib.Path.glob() #126363

Description

@barneygale

pathlib.Path.glob() converts a given string pattern to a Path object:

if not isinstance(pattern, PurePath):
pattern = self.with_segments(pattern)

Which has the following drawbacks:

  • It instantiates a Path object, which is slow
  • It normalizes a Windows UNC drive if given, which is unnecessary - any anchor causes NotImplementedError to be raised.
  • It strips the trailing slash from the pattern, so we need to peek at pattern._raw_path to restore it

It would be better to add a variant of PurePath._parse_path() for dealing specifically with glob patterns.

Linked PRs

Activity

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Metadata

Metadata

Assignees

No one assigned

    Projects

    No projects

      Milestone

      No milestone

      Relationships

      None yet

      Development

      No branches or pull requests

      Issue actions