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@donbarbos donbarbos commented Mar 12, 2025

We have one doctest in Modules/itertoolsmodule.c and none in test_itertolls.py so this is definitely a bug like issue #131069

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I found tests.addTest(doctest.DocTestSuite patterns in unittests and only these two tests loaded incorrect modules (modules without doctests)
cc @vstinner

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LGTM

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I modified the doctest with the change below, ran make clinic && make, and then ./python -m test test_itertools -v. I confirm that test_itertools catchs the typo (fails).

diff --git a/Modules/itertoolsmodule.c b/Modules/itertoolsmodule.c
index 3e425ee5f92..092316cf255 100644
--- a/Modules/itertoolsmodule.c
+++ b/Modules/itertoolsmodule.c
@@ -124,7 +124,7 @@ or when the input iterable is exhausted.
     >>> for batch in batched('ABCDEFG', 3):
     ...     print(batch)
     ...
-    ('A', 'B', 'C')
+    ('Aa', 'B', 'C')
     ('D', 'E', 'F')
     ('G',)
 

@vstinner vstinner merged commit 15a8412 into python:main Mar 12, 2025
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Thanks @donbarbos for the PR, and @vstinner for merging it 🌮🎉.. I'm working now to backport this PR to: 3.12, 3.13.
🐍🍒⛏🤖

miss-islington pushed a commit to miss-islington/cpython that referenced this pull request Mar 12, 2025
(cherry picked from commit 15a8412)

Co-authored-by: donBarbos <[email protected]>
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bedevere-app bot commented Mar 12, 2025

GH-131136 is a backport of this pull request to the 3.13 branch.

@bedevere-app bedevere-app bot removed the needs backport to 3.13 bugs and security fixes label Mar 12, 2025
miss-islington pushed a commit to miss-islington/cpython that referenced this pull request Mar 12, 2025
(cherry picked from commit 15a8412)

Co-authored-by: donBarbos <[email protected]>
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bedevere-app bot commented Mar 12, 2025

GH-131137 is a backport of this pull request to the 3.12 branch.

@bedevere-app bedevere-app bot removed the needs backport to 3.12 only security fixes label Mar 12, 2025
vstinner pushed a commit that referenced this pull request Mar 12, 2025
gh-93096: Load doctests in `test_itertools` (GH-131133)
(cherry picked from commit 15a8412)

Co-authored-by: donBarbos <[email protected]>
vstinner pushed a commit that referenced this pull request Mar 12, 2025
gh-93096: Load doctests in `test_itertools` (GH-131133)
(cherry picked from commit 15a8412)

Co-authored-by: donBarbos <[email protected]>
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