## Summary
Resolves#4834
## Test Plan
```sh
# 3.12.3 is a `install_only` archive
$ cargo run -- python install --preview --force 3.12.3
# 3.9.4 has only `full` archive
$ cargo run -- python install --preview --force 3.9.4
```
Fix#4774.
## Summary
Change the python interpreter for linux installed with `uv python` to an
optimized one.
## Test Plan
I ran the following command on Linux (glibc) to confirm that an
optimized (not debug built) Python is installed.
```bash
# install python
uv python install 3.12.3
# check build type
uv run python -c "import sysconfig;print(sysconfig.get_config_var('Py_DEBUG'))"
0
```
Whew this is a lot.
The user-facing changes are:
- `uv toolchain` to `uv python` e.g. `uv python find`, `uv python
install`, ...
- `UV_TOOLCHAIN_DIR` to` UV_PYTHON_INSTALL_DIR`
- `<UV_STATE_DIR>/toolchains` to `<UV_STATE_DIR>/python` (with
[automatic
migration](https://github.com/astral-sh/uv/pull/4735/files#r1663029330))
- User-facing messages no longer refer to toolchains, instead using
"Python", "Python versions" or "Python installations"
The internal changes are:
- `uv-toolchain` crate to `uv-python`
- `Toolchain` no longer referenced in type names
- Dropped unused `SystemPython` type (previously replaced)
- Clarified the type names for "managed Python installations"
- (more little things)
Charlie Marsh
Jo
Di-Is
Zanie Blue