bpo-34067: Include a more easily understood example for nullcontext #8158
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I figured this issue was simple enough to warrant not opening a bug or issue, let me know if I was mistaken. |
ncoghlan
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Jul 9, 2018
Doc/library/contextlib.rst
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| def myfunction(arg, ignore_exceptions=False): | ||
| if ignore_exceptions: | ||
| # Use suppress to ignore all exceptions. | ||
| cm = contextlib.suppress(BaseException) |
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Suppressing KeyboardInterrupt and SystemExit is almost never the right thing to do, so the example exception here should only be Exception (not BaseException)
miss-islington
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Jul 9, 2018
…ythonGH-8158) Include a more easily understood example for nullcontext (cherry picked from commit c287545) Co-authored-by: Daniel Porteous <[email protected]>
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GH-8199 is a backport of this pull request to the 3.7 branch. |
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Awesome, super happy to help. Thanks! |
miss-islington
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…H-8158) Include a more easily understood example for nullcontext (cherry picked from commit c287545) Co-authored-by: Daniel Porteous <[email protected]>
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When trying to let a few friends know about
contextlib.nullcontext, they "didn't get it" based on the example in the docs. I feel that including examples that do and don't useenter_resultcan help new users understand the intention ofnullcontextas a no-op context manager.I also noticed that normally italics are used for an argument, so I fixed that up on line 155.
https://bugs.python.org/issue34067