uv toolchain list throws error and fails to display list because Python 2 is on the PATH

[notatallshaw-gts]

$ uv -V
uv 0.2.12

$ python -V
Python 3.11.2

$ /usr/bin/python -V
Python 2.7.15

$ uv toolchain list
warning: `uv toolchain list` is experimental and may change without warning.
error: Can't use Python at `/usr/bin/python`
  Caused by: Python executable does not support `-I` flag. Please use Python 3.8 or newer.

[zanieb]

Thanks. We should be skipping those.

[zanieb]

This should be resolved by #4382 if you're willing to give it a try.

[notatallshaw-gts]

Confirmed, no longer throws an error:

cargo run -- toolchain list
   ...
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 37.30s
     Running `target/debug/uv toolchain list`
warning: `uv toolchain list` is experimental and may change without warning.
cpython-3.12.3-linux-x86_64-musl        <download available>
cpython-3.12.3-linux-x86_64-gnu /home/STRIKETECH/dshaw/.local/share/uv/toolchains/cpython-3.12.3-linux-x86_64-gnu/install/bin/python3
cpython-3.11.9-linux-x86_64-musl        <download available>
cpython-3.11.9-linux-x86_64-gnu /home/STRIKETECH/dshaw/.local/share/uv/toolchains/cpython-3.11.9-linux-x86_64-gnu/install/bin/python3
cpython-3.11.2-linux-x86_64-gnu /usr/local/bin/python3
cpython-3.11.2-linux-x86_64-gnu /home/STRIKETECH/dshaw/miniforge3/envs/backoffice/bin/python3
cpython-3.11.2-linux-x86_64-gnu /home/STRIKETECH/dshaw/miniforge3/envs/backoffice/bin/python
cpython-3.10.14-linux-x86_64-musl       <download available>
cpython-3.10.14-linux-x86_64-gnu        /home/STRIKETECH/dshaw/.local/share/uv/toolchains/cpython-3.10.14-linux-x86_64-gnu/install/bin/python3
cpython-3.9.19-linux-x86_64-musl        <download available>
cpython-3.9.19-linux-x86_64-gnu /home/STRIKETECH/dshaw/.local/share/uv/toolchains/cpython-3.9.19-linux-x86_64-gnu/install/bin/python3
cpython-3.8.19-linux-x86_64-musl        <download available>
cpython-3.8.19-linux-x86_64-gnu /home/STRIKETECH/dshaw/.local/share/uv/toolchains/cpython-3.8.19-linux-x86_64-gnu/install/bin/python3
cpython-3.7.9-linux-x86_64-musl <download available>
cpython-3.7.2-linux-x86_64-gnu  /usr/bin/python3