initialize an uv venv globally but skip it for python executor

Dockerfile

@@ -174,6 +174,8 @@ RUN curl --proto '=https' --tlsv1.2 -LsSf https://github.com/astral-sh/uv/releas
 RUN uv python install 3.11
 RUN uv python install $LATEST_STABLE_PY
 
+RUN uv venv
+
 
 RUN curl -sL https://deb.nodesource.com/setup_20.x | bash - 
 RUN apt-get -y update && apt-get install -y curl procps nodejs awscli && apt-get clean \

backend/windmill-worker/src/python_executor.rs

@@ -366,6 +366,7 @@ impl PyVersion {
                 "python",
                 "find",
                 self.to_string_with_dot(),
+                "--system",
                 "--python-preference=only-managed",
             ])
             .envs([