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Avoid debug error for uv run with unknown Python version (#4913)

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## Summary

Closes https://github.com/astral-sh/uv/issues/4848.

## Test Plan

```
> cargo run -- run -vv --preview --isolated --python 3.12.4 python -V
error: No interpreter found for Python 3.12.4 in virtual environments or managed installations or system path
```
This commit is contained in:
Charlie Marsh 2024-07-09 01:29:55 -04:00 • committed by GitHub
parent ed4234d52e
commit f862457f05
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1 changed files with 12 additions and 4 deletions
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16
crates/uv-python/src/installation.rs
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@ -14,7 +14,9 @@ use crate::downloads::{DownloadResult, ManagedPythonDownload, PythonDownloadRequ
use crate::implementation::LenientImplementationName;
use crate::managed::{ManagedPythonInstallation, ManagedPythonInstallations};
use crate::platform::{Arch, Libc, Os};
use crate::{Error, Interpreter, PythonFetch, PythonPreference, PythonSource, PythonVersion};
use crate::{
downloads, Error, Interpreter, PythonFetch, PythonPreference, PythonSource, PythonVersion,
};
/// A Python interpreter and accompanying tools.
#[derive(Clone, Debug)]
@ -97,16 +99,22 @@ impl PythonInstallation {
match Self::find(&request, environments, preference, cache) {
Ok(venv) => Ok(venv),
// If missing and allowed, perform a fetch
err @ Err(Error::MissingPython(_))
Err(Error::MissingPython(err))
if preference.allows_managed()
&& python_fetch.is_automatic()
&& client_builder.connectivity.is_online() =>
{
if let Some(request) = PythonDownloadRequest::try_from_request(&request) {
debug!("Requested Python not found, checking for available download...");
Self::fetch(request.fill(), client_builder, cache, reporter).await
match Self::fetch(request.fill(), client_builder, cache, reporter).await {
Ok(installation) => Ok(installation),
Err(Error::Download(downloads::Error::NoDownloadFound(_))) => {
Err(Error::MissingPython(err))
}
Err(err) => Err(err),
}
} else {
err
Err(Error::MissingPython(err))
}
}
Err(err) => Err(err),