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gh-135110: Fix misleading generator.close() documentation - #135152
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ZeroIntensity merged 6 commits intoJun 26, 2025
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The documentation incorrectly stated that generator.close() 'raises' a GeneratorExit exception. This was misleading because the method doesn't raise the exception to the caller - it sends the exception internally to the generator and returns None. Changed 'raises' to 'sends' in both Doc/reference/expressions.rst and Doc/howto/functional.rst for consistency and accuracy. Fixes #135110
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I'm a little worried about the use of the word "send" here, especially considering generator.send() is a thing. I think "raises" is fine, we should just make it clearer that the actual yield expressions are what raise. Maybe we could say that close() is equivalent to throw(GeneratorExit)?
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Replace 'sends' with 'raises' and clarify that close() is equivalent to throw(GeneratorExit). This makes the documentation clearer and avoids confusion with generator.send().
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Doc/howto/functional.rst
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Co-authored-by: Peter Bierma <zintensitydev@gmail.com>
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It looks like the CLA got screwed up. |
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Just signed it again, should be all good now. |
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ZeroIntensity
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Jun 20, 2025
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Thanks @cdenihan for the PR, and @ZeroIntensity for merging it 🌮🎉.. I'm working now to backport this PR to: 3.13, 3.14. |
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miss-islington
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Jun 26, 2025
…thonGH-135152) The documentation incorrectly stated that generator.close() 'raises' a GeneratorExit exception. This was misleading because the method doesn't raise the exception to the caller - it sends the exception internally to the generator and returns None. (cherry picked from commit 0d76dcc) Co-authored-by: Connor Denihan <188690869+cdenihan@users.noreply.github.com>
miss-islington
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…thonGH-135152) The documentation incorrectly stated that generator.close() 'raises' a GeneratorExit exception. This was misleading because the method doesn't raise the exception to the caller - it sends the exception internally to the generator and returns None. (cherry picked from commit 0d76dcc) Co-authored-by: Connor Denihan <188690869+cdenihan@users.noreply.github.com>
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GH-135985 is a backport of this pull request to the 3.14 branch. |
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GH-135986 is a backport of this pull request to the 3.13 branch. |
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ZeroIntensity
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…H-135152) (GH-135986) gh-135110: Fix misleading `generator.close()` documentation (GH-135152) The documentation incorrectly stated that generator.close() 'raises' a GeneratorExit exception. This was misleading because the method doesn't raise the exception to the caller - it sends the exception internally to the generator and returns None. (cherry picked from commit 0d76dcc) Co-authored-by: Connor Denihan <188690869+cdenihan@users.noreply.github.com>
ZeroIntensity
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…H-135152) (GH-135985) gh-135110: Fix misleading `generator.close()` documentation (GH-135152) The documentation incorrectly stated that generator.close() 'raises' a GeneratorExit exception. This was misleading because the method doesn't raise the exception to the caller - it sends the exception internally to the generator and returns None. (cherry picked from commit 0d76dcc) Co-authored-by: Connor Denihan <188690869+cdenihan@users.noreply.github.com>
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…thonGH-135152) The documentation incorrectly stated that generator.close() 'raises' a GeneratorExit exception. This was misleading because the method doesn't raise the exception to the caller - it sends the exception internally to the generator and returns None.
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…thonGH-135152) The documentation incorrectly stated that generator.close() 'raises' a GeneratorExit exception. This was misleading because the method doesn't raise the exception to the caller - it sends the exception internally to the generator and returns None.
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…thonGH-135152) The documentation incorrectly stated that generator.close() 'raises' a GeneratorExit exception. This was misleading because the method doesn't raise the exception to the caller - it sends the exception internally to the generator and returns None.
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…thonGH-135152) The documentation incorrectly stated that generator.close() 'raises' a GeneratorExit exception. This was misleading because the method doesn't raise the exception to the caller - it sends the exception internally to the generator and returns None.
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This PR fixes the misleading documentation for generator.close() that incorrectly stated the method 'raises a GeneratorExit' to the caller.
Problem
The current documentation in both Doc/reference/expressions.rst and Doc/howto/functional.rst states that generator.close() 'raises a GeneratorExit' which is misleading because:
Solution
Changed 'raises' to 'sends' in both documentation files for accuracy and consistency:
Doc/reference/expressions.rst (line 628-629):
Doc/howto/functional.rst (line 605):
Testing
The behavior described in the fixed documentation can be verified by the examples in the original issue report, which show that generator.close() always returns None.
Fixes #135110
📚 Documentation preview 📚: https://cpython-previews--135152.org.readthedocs.build/