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gh-118761: Optimise import time for shlex #132036

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Merged
AA-Turner merged 6 commits into from
Apr 24, 2025
Merged

gh-118761: Optimise import time for shlex #132036

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1fd83f1
Optimise import time for ``shlex``
AA-Turner Apr 2, 2025
8811463
Revert deferral of sys and io
AA-Turner Apr 4, 2025
bd6916a
Switch to bytes.translate() based approach
AA-Turner Apr 6, 2025
192329e
Update Lib/shlex.py
AA-Turner Apr 18, 2025
cc130af
Merge branch 'main' into opt-shlex
AA-Turner Apr 18, 2025
4a640ce
Add test_lazy_imports
AA-Turner Apr 21, 2025
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Add test_lazy_imports
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@AA-Turner
AA-Turner committed Apr 21, 2025
commit 4a640ce2f34753d8c0c55f3cecdaa1f406f3dd00
4 changes: 4 additions & 0 deletions Lib/test/test_shlex.py
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Expand Up @@ -3,6 +3,7 @@
import shlex
import string
import unittest
from test.support import import_helper


# The original test data set was from shellwords, by Hartmut Goebel.
Expand Down Expand Up @@ -363,6 +364,9 @@ def testPunctuationCharsReadOnly(self):
with self.assertRaises(AttributeError):
shlex_instance.punctuation_chars = False

def test_lazy_imports(self):
import_helper.ensure_lazy_imports('shlex', {'collections', 're', 'os'})


# Allow this test to be used with old shlex.py
if not getattr(shlex, "split", None):
Expand Down