fix: give uv the full python path (#2774)

* fix: give uv the full python path

Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>

* Fix python binary path in Linux build script

I thought the dir was enough. Seems not.

---------

Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>

cibuildwheel/platforms/linux.py

@@ -315,7 +315,7 @@ def build_in_container(
                         [
                             "uv",
                             "build",
-                            "--python=python",
+                            f"--python={python_bin / 'python'}",
                             container_package_dir,
                             "--wheel",
                             f"--out-dir={built_wheel_dir}",

cibuildwheel/platforms/macos.py

@@ -517,7 +517,7 @@ def build(options: Options, tmp_path: Path) -> None:
                         call(
                             uv_path,
                             "build",
-                            "--python=python",
+                            f"--python={base_python}",
                             build_options.package_dir,
                             "--wheel",
                             f"--out-dir={built_wheel_dir}",

cibuildwheel/platforms/windows.py

@@ -510,7 +510,7 @@ def build(options: Options, tmp_path: Path) -> None:
                         call(
                             uv_path,
                             "build",
-                            "--python=python",
+                            f"--python={base_python}",
                             build_options.package_dir,
                             "--wheel",
                             f"--out-dir={built_wheel_dir}",