upgraded to python 3.9 and repleced venv with vritualenv

Author: Andrei Neagu

docker/python/Dockerfile

@@ -21,6 +21,8 @@ RUN apt-get update \
     && apt-get -y install --no-install-recommends \
     jq \
     && rm --recursive --force /var/lib/apt/lists/*
+# install uv
+COPY --from=ghcr.io/astral-sh/uv:latest /uv /uvx /bin/
 
 # -------------------------- Build stage -------------------
 # Installs build/package management tools and third party dependencies

src/osparc_python_runner/main.py

@@ -117,17 +117,16 @@ def setup():
         "set -o nounset",
         "IFS=$(printf '\\n\\t')",
         'echo "Creating virtual environment ..."',
-        f'python3 -m venv --system-site-packages --symlinks --upgrade "{venv_dir}"',
-        f'"{venv_dir}/bin/pip" install -U pip wheel setuptools',
-        f'"{venv_dir}/bin/pip" install -r "{requirements_txt}"',
+        f'python3 -m virtualenv --system-site-packages --symlinks --without-pip "{venv_dir}"',
+        'uv pip install -U pip wheel setuptools',
+        f'uv pip install -r "{requirements_txt}"',
         "\n".join(bash_input_env_export),
         "\n".join(bash_output_env_export),
         f'echo "Executing code {user_code_entrypoint.name}..."',
         f'"{venv_dir}/bin/python3" "{user_code_entrypoint}"',
         'echo "DONE ..."',
     ]
-    main_script_path = Path("main.sh")
-    main_script_path.write_text("\n".join(script))
+    Path("main.sh").write_text("\n".join(script))
 
 
 def teardown():

src/osparc_python_runner/requirements.txt

@@ -28,12 +28,16 @@ decorator==5.2.1
     # via ipython
 defusedxml==0.7.1
     # via nbconvert
+distlib==0.3.9
+    # via virtualenv
 docopt==0.6.2
     # via pipreqs
 executing==2.2.0
     # via stack-data
 fastjsonschema==2.21.1
     # via nbformat
+filelock==3.18.0
+    # via virtualenv
 fonttools==4.58.0
     # via matplotlib
 idna==3.10
@@ -115,7 +119,9 @@ pillow==11.2.1
 pipreqs==0.5.0
     # via -r requirements.in
 platformdirs==4.3.8
-    # via jupyter-core
+    # via
+    #   jupyter-core
+    #   virtualenv
 prompt-toolkit==3.0.51
     # via ipython
 ptyprocess==0.7.0
@@ -180,6 +186,8 @@ tzdata==2025.2
     # via pandas
 urllib3==2.4.0
     # via requests
+virtualenv==20.31.2
+    # via -r requirements.in
 wcwidth==0.2.13
     # via prompt-toolkit
 webencodings==0.5.1

src/requirements.in

@@ -7,3 +7,4 @@ seaborn
 
 # tools
 pipreqs
+virtualenv