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## Summary
This PR adds support to include Python pre-releases when requesting
versions.
Check out the docs for commands that support the `Python` option:
```text
--python, -p python
The Python interpreter to use for the virtual environment.
```
At least the following scenarios are supported:
```bash
3.13.0a1
3.13b2
3.13rc4
313rc1
```
## Test Plan
I added a basic unit test to `uv/crates/uv-python/src/discovery.rs`. I
could have added more, but I have not discovered any relevant places.
CI passes
Note: I was unable to execute the entire test set locally. There were at
least some timeout issues (some tests took over 60 seconds).
========== output ===========
beta version
```bash
cargo run -- venv --python 3.13.0b3 ░▒▓ 94%
Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.20s
Running `target/debug/uv venv --python 3.13.0b3`
Using Python 3.13.0b3 interpreter at: /home/mikko/.pyenv/versions/3.13.0b3/bin/python3
Creating virtualenv at: .venv
Activate with: source .venv/bin/activate
````
release candidate
```bash
cargo run -- venv --python 3.13.0rc2 ░▒▓ 94%
Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.83s
Running `target/debug/uv venv --python 3.13.0rc2`
Using Python 3.13.0rc2 interpreter at: /home/mikko/.pyenv/versions/3.13.0rc2/bin/python3
Creating virtualenv at: .venv
Activate with: source .venv/bin/activate
```
```bash
cargo run -- venv --python 313rc2 ░▒▓ 94%
Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.31s
Running `target/debug/uv venv --python 313rc2`
Using Python 3.13.0rc2 interpreter at: /home/mikko/.pyenv/versions/3.13.0rc2/bin/python3
Creating virtualenv at: .venv
Activate with: source .venv/bin/activate
```
---------
Co-authored-by: Zanie Blue <contact@zanie.dev>
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|---|---|---|
| .. | ||
| python | ||
| src | ||
| Cargo.toml | ||
| download-metadata.json | ||
| fetch-download-metadata.py | ||
| template-download-metadata.py | ||