Update pip install calls in scripts to use uv. And messages to reference current executable (#13597)

scripts/create_baseline_stubs.py

@@ -46,6 +46,8 @@ def get_installed_package_info(project: str) -> tuple[str, str] | None:
 
     Return (normalized project name, installed version) if successful.
     """
+    # Not using "uv pip freeze" because if this is run from a global Python,
+    # it'll mistakenly list the .venv's packages.
     r = subprocess.run(["pip", "freeze"], capture_output=True, text=True, check=True)
     return search_pip_freeze_output(project, r.stdout)
 
@@ -220,7 +222,7 @@ def main() -> None:
     if info is None:
         print(f'Error: "{project}" is not installed', file=sys.stderr)
         print(file=sys.stderr)
-        print(f'Suggestion: Run "python3 -m pip install {project}" and try again', file=sys.stderr)
+        print(f"Suggestion: Run `{sys.executable} -m pip install {project}` and try again", file=sys.stderr)
         sys.exit(1)
     project, version = info
 

scripts/install_all_third_party_dependencies.py

@@ -3,11 +3,13 @@ import sys
 
 from ts_utils.requirements import get_external_stub_requirements
 
-use_uv = "--uv" in sys.argv
-if use_uv:
-    pip_command = ["uv", "pip", "install"]
-else:
-    pip_command = ["pip", "install"]
 
-requirements = get_external_stub_requirements()
-subprocess.check_call(pip_command + [str(requirement) for requirement in requirements])
+def main() -> None:
+    requirements = get_external_stub_requirements()
+    # By forwarding arguments, we naturally allow non-venv (system installs)
+    # by letting the script's user follow uv's own helpful hint of passing the `--system` flag.
+    subprocess.check_call(["uv", "pip", "install", *sys.argv[1:], *[str(requirement) for requirement in requirements]])
+
+
+if __name__ == "__main__":
+    main()