Display alternative Python implementations in uv python list#7508
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Display alternative Python implementations in uv python list#7508
uv python list#7508Conversation
zanieb
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Sep 18, 2024
crates/uv-python/src/discovery.rs
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| // If found on the search path with the default executable name we should not skip it | ||
| && !(installation.uses_default_executable_name() | ||
| && installation.source == PythonSource::SearchPath) |
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This is a bit annoying, but necessary to prevent a regression when you have an alternative implementation on your PATH as python. We might want to track executable names in PythonSource::SearchPath directly; then we couple implement this in PythonSource::allows_alternative_implementations
zanieb
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Sep 18, 2024
crates/uv-python/src/discovery.rs
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| let implementation_names: Vec<&'static str> = implementation.map_or_else( | ||
| || ImplementationName::possible_names().to_vec(), | ||
| |name| { | ||
| let name: &'static str = name.into(); | ||
| vec![name] | ||
| }, | ||
| ); |
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cc @BurntSushi
This is the result of our failure to use an iterator here.
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Moving some of this into #7649 |
zanieb
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…mentations (#7649) There are two parts to this. The first is a restructuring and refactoring. We had some debt around expected executable name generation, which we address here by consolidating into a single function that generates a combination of names. This includes a bit of extra code around free-threaded variants because this was written on top of #7431 — I'll rebase that on top of this. The second addresses some bugs around alternative implementations. Notably, `uv python list` does not discovery executables with alternative implementation names. Now, we properly generate all of the executable names for `VersionRequest::Any` (originally implemented in #7508) to properly show all the implementations we can find: ``` ❯ cargo run -q -- python list --no-python-downloads cpython-3.12.6-macos-aarch64-none /opt/homebrew/opt/[email protected]/bin/python3.12 -> ../Frameworks/Python.framework/Versions/3.12/bin/python3.12 cpython-3.11.10-macos-aarch64-none /opt/homebrew/opt/[email protected]/bin/python3.11 -> ../Frameworks/Python.framework/Versions/3.11/bin/python3.11 cpython-3.9.6-macos-aarch64-none /Library/Developer/CommandLineTools/usr/bin/python3 -> ../../Library/Frameworks/Python3.framework/Versions/3.9/bin/python3 pypy-3.10.14-macos-aarch64-none /opt/homebrew/bin/pypy3 -> ../Cellar/pypy3.10/7.3.17/bin/pypy3 ``` While doing both of these changes, I ended up changing the priority of interpreter discovery slightly. For example, given that the executables are in the same directory, do we query `python` or `python3.10` first when you request `--python 3.10`? Previously, we'd check `python3.10` but I think that was an incorrect optimization. I think we should always prefer the bare name (i.e. `python`) first. Similarly, this applies to `python` and an executable for an alternative implementation like `pypy`. If it's not compatible with the request, we'll skip it anyway. We might have to query more interpreters with this approach but it seems rare. Closes #7286 superseding #7508
…ult executable name
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Closes #7286
We now show externally-managed alternative Python implementations
Previously, this required the implementation to use the
pythonexecutable name. The problem here is that we weren't looking at these executables at all unless the alternative implementation was requested.