feat: install python3-venv and automatically initialize a local virtual environment for n8n in start script

.env.example

@@ -33,7 +33,6 @@ PUBLIC_PORT=7861
 
 # Disable unnecessary services
 N8N_PYTHON_NODES_ENABLED=false
-N8N_RUNNERS_MODE=external
 N8N_LICENSE_AUTO_RENEW_ENABLED=false
 
 # -----------------------------------------------------------------------------

Dockerfile

@@ -14,6 +14,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     jq \
     python3 \
     python3-pip \
+    python3-venv \
     sqlite3 \
     tini \
     && pip3 install --no-cache-dir --break-system-packages huggingface_hub \

start.sh

@@ -35,9 +35,14 @@ export TZ="${TZ:-$GENERIC_TIMEZONE}"
 
 # Disable noisy or unnecessary services
 export N8N_PYTHON_NODES_ENABLED="${N8N_PYTHON_NODES_ENABLED:-false}"
-export N8N_RUNNERS_MODE="${N8N_RUNNERS_MODE:-external}"
 export N8N_LICENSE_AUTO_RENEW_ENABLED="${N8N_LICENSE_AUTO_RENEW_ENABLED:-false}"
 
+# Silences the "Python task runner missing venv" warning by ensuring a venv exists
+if [ ! -d "$N8N_HOME/python_venv" ]; then
+  echo "Initializing minimal Python venv for n8n compatibility..."
+  python3 -m venv "$N8N_HOME/python_venv"
+fi
+
 # n8n v2 uses built-in user management.
 
 echo ""