Krishnan Chandra d73b25385f Coerce empty string values to None for UV_PYTHON env var (#7878) ...

## Summary

Closes #7841. If there are other env vars that would also benefit from
this value parser, please let me know and I can add them to this PR.

## Test Plan

When running the same example from the linked issue, it now works:

```
UV_PYTHON= cargo run -- init x
   Compiling ...
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 29.06s
     Running `target/debug/uv init x`
Initialized project `x` at `/Users/krishnanchandra/Projects/uv/x`
```

2024-10-04 12:32:03 +01:00

..

src

Coerce empty string values to None for UV_PYTHON env var (#7878)

2024-10-04 12:32:03 +01:00

build.rs

uv-cli: add worktree support to build.rs (#6825)

2024-08-29 14:11:50 -04:00

Cargo.toml

Add uv- prefix to all internal crates (#7853)

2024-10-01 20:15:32 -04:00