Allow parsing exotic python version#4949
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davidhewitt merged 2 commits intoPyO3:mainfrom Mar 1, 2025
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On specific linux disto, the python version output can be exotic. For example, in my machine I got the following: ``` ❯ python --version Python 3.11.3+chromium.29 ``` Which can lead to not desired end of program: ``` from cryptography.hazmat.bindings._rust import openssl as rust_openssl pyo3_runtime.PanicException: called `Result::unwrap()` on an `Err` value: "Python version string has too many parts" ```
davidhewitt
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Feb 28, 2025
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Thanks, sorry this caused a crash for you. I have one further suggestion just for completeness...
| let major_str = parts.next().ok_or("Python major version missing")?; | ||
| let minor_str = parts.next().ok_or("Python minor version missing")?; | ||
| let patch_str = parts.next(); | ||
| if parts.next().is_some() { |
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Let's perhaps use splitn on line 43 so that the patch_str will contain any "exotic" part?
| assert!(PythonVersionInfo::from_str("3.5+").unwrap() == (3, 5)); | ||
| assert!(PythonVersionInfo::from_str("3.5.2a1+").unwrap() < (3, 6)); | ||
| assert!(PythonVersionInfo::from_str("3.5.2a1+").unwrap() > (3, 4)); | ||
| assert!(PythonVersionInfo::from_str("3.11.3+chromium.29").unwrap() >= (3, 11, 3)); |
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It might be nice in here to assert that the "suffix" is +chromium.29.
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Sure, I've updated the test
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Also, please add a "fixed" newsfragment for the changelog. |
* add test to check if the suffix is properly capture * add newsfragment "fixed" entry for the changelog
SilverBzH
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Mar 17, 2025
pyo3 version prior to 0.24.0 are not able to parse properly exotic python version. This is fix since PyO3/pyo3#4949 available on the v0.24.0 version
shubhamdp
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Jun 19, 2025
bootstrapping the environment will install the chromium based python and it when "python3 --version" would result into "Python 3.11.3+chromium.29". With cryptography v43.0.0, parsing such python version would fail even if we try to import the cryptography module. It was fixed in pyo3 repository PR:PyO3/pyo3#4949 and this fix was part of cryptography module onwards v44.0.3
shubhamdp
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Jun 19, 2025
bootstrapping the environment will install the chromium based python and it when "python3 --version" would result into "Python 3.11.3+chromium.29". With cryptography v43.0.0, parsing such python version would fail even if we try to import the cryptography module. It was fixed in pyo3 repository PR:PyO3/pyo3#4949 and this fix was part of cryptography module onwards v45.0.1
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On specific linux disto, the python version output can be exotic.
For example, in my machine I got the following:
Which can lead to not desired end of program: