Merge pull request #497 from rebtoor/fix-molecule-venv

Improved the robustness of `molecule_venv.sh` script

scripts/molecule_venv.sh

@@ -5,11 +5,21 @@ LOCAL_MOLECULE_ENV=$(mktemp -d)/molecule
 if which python3.9 2>/dev/null; then
     python3.9 -m venv $LOCAL_MOLECULE_ENV
 else
-    echo WARNING: python3.9 binary is not in path. Tests will run with system python: $(python --version) at $(which python)
-    python -m venv $LOCAL_MOLECULE_ENV
+    echo WARNING: python3.9 binary is not in path. Tests will run with system python: $(python3 --version) at $(which python3)
+    python3 -m venv $LOCAL_MOLECULE_ENV
+fi
+
+# some python modules need to be compiled
+if ! command -v python3-config 2>/dev/null; then
+    if -e /etc/redhat-release; then
+        sudo dnf -y install python3-devel
+    else
+        echo "Please, install python3 development package otherwise installation of modules could fail"
+    fi
 fi
 
 source $LOCAL_MOLECULE_ENV/bin/activate
+
 pip install -r molecule-requirements.txt
 ansible-galaxy collection install -r requirements.yml
 ./scripts/test_roles.py