bpo-41394: State special _ in appendix of tutorial #21651
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Made the statement more clear. Added example stating _ is not defined at the start.
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Made changes. |
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Added NEWS entry. Please check. |
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Thanks for making the requested changes! : please review the changes made to this pull request. |
| Special ``_`` variable | ||
| ------------------------- | ||
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| There is a special variable ``_`` in interactive mode, stored in the :mod:`builtins` |
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Is it really true that _ is stored in builtins? I played around with it a while, and couldn't verify that. And even if it's true, is it important? I don't think so. Do you have another reference to _ being in builtins?
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This was stated in bpo-41394 too.
https://docs.python.org/3/reference/lexical_analysis.html#reserved-classes-of-identifiers
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Interesting. I still think it's unimportant for the tutorial and should be removed.
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| There is a special variable ``_`` in interactive mode, stored in the :mod:`builtins` | ||
| module. It stores the result of the last evaluated expression (*except* ``None`` | ||
| — it remains unchanged). |
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I think this would read better as: "It stores the result of the last evaluated expression. If the last expression evaluated to None, then the value of _ is not updated."
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Somehow the commits aren't updated here. /(ㄒoㄒ)/~~ Closing this, and submitting a new PR. |
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See PR #21654 . |
4 participants
This patch states the special variable
_in interactive mode and also includes an example.https://bugs.python.org/issue41394