GH-104102: Optimize pathlib.Path.glob() handling of ../ pattern segments #104103
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These segments do not require a `stat()` call, as the selector's `_select_from()` method is called after we've established that the parent is a directory.
barneygale changed the title pathlib.Path.glob() handling of ../ pattern segmentspathlib.Path.glob() handling of ../ pattern segments 
AlexWaygood reviewed May 2, 2023
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| I think we could add some more tests here. There don't seem to be any tests for patterns with two successive |
AlexWaygood approved these changes May 2, 2023
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AlexWaygood left a comment There was a problem hiding this comment.
Looks fab to me other than my point about test coverage! Great work.
AlexWaygood added type-feature Contributor Author
| Thank you Alex! |
carljm added a commit to carljm/cpython that referenced this pull request May 2, 2023
* main: (760 commits) pythonGH-104102: Optimize `pathlib.Path.glob()` handling of `../` pattern segments (pythonGH-104103) pythonGH-104104: Optimize `pathlib.Path.glob()` by avoiding repeated calls to `os.path.normcase()` (pythonGH-104105) pythongh-103822: [Calendar] change return value to enum for day and month APIs (pythonGH-103827) pythongh-65022: Fix description of tuple return value in copyreg (python#103892) pythonGH-103525: Improve exception message from `pathlib.PurePath()` (pythonGH-103526) pythongh-84436: Add integration C API tests for immortal objects (pythongh-103962) pythongh-103743: Add PyUnstable_Object_GC_NewWithExtraData (pythonGH-103744) pythongh-102997: Update Windows installer to SQLite 3.41.2. (python#102999) pythonGH-103484: Fix redirected permanently URLs (python#104001) Improve assert_type phrasing (python#104081) pythongh-102997: Update macOS installer to SQLite 3.41.2. (pythonGH-102998) pythonGH-103472: close response in HTTPConnection._tunnel (python#103473) pythongh-88496: IDLE - fix another test on macOS (python#104075) pythongh-94673: Hide Objects in PyTypeObject Behind Accessors (pythongh-104074) pythongh-94673: Properly Initialize and Finalize Static Builtin Types for Each Interpreter (pythongh-104072) pythongh-104016: Skip test for deeply neste f-strings on wasi (python#104071) pythongh-104057: Fix direct invocation of test_super (python#104064) pythongh-87092: Expose assembler to unit tests (python#103988) pythongh-97696: asyncio eager tasks factory (python#102853) pythongh-84436: Immortalize in _PyStructSequence_InitBuiltinWithFlags() (pythongh-104054) ...
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These segments do not require a
stat()call, as the selector's_select_from()method is called after we've established that the parent is a directory.This PR adds a new
_ParentSelectorclass, which is used to evaluate../segments rather than_PreciseSelector.pathlib.Path.glob()handling of../pattern segments #104102