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Speed up import time by deferring inspect #499

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merged 4 commits into from
Aug 20, 2024
Merged

Speed up import time by deferring inspect #499

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8e66fbc
Defer import inspect
danielhollas Aug 5, 2024
debb516
Don't use global var
danielhollas Aug 20, 2024
e99c105
Restore single-expression logic.
jaraco Aug 20, 2024
a7aaf72
Use third-person imperative voice and link to issue in comment.
jaraco Aug 20, 2024
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4 changes: 3 additions & 1 deletion importlib_metadata/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,6 @@
import zipp
import email
import types
import inspect
import pathlib
import operator
import textwrap
Expand Down Expand Up @@ -1089,6 +1088,9 @@ def _get_toplevel_name(name: PackagePath) -> str:
>>> _get_toplevel_name(PackagePath('foo.dist-info'))
'foo.dist-info'
"""
# Defer import of inspect for performance (python/cpython#118761)
import inspect

return _topmost(name) or (
# python/typeshed#10328
inspect.getmodulename(name) # type: ignore
Expand Down
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