Update Dockerfile

Dockerfile

@@ -9,6 +9,7 @@ RUN apt-get update && apt-get install -y \
     openjdk-21-jre-headless \
     python3 \
     python3-pip \
+    python3-venv \
     bash \
     && rm -rf /var/lib/apt/lists/*
 
@@ -17,7 +18,13 @@ COPY --from=conllu /usr/src/ConlluEditor /usr/src/ConlluEditor
 
 # Copy proxy + upload server
 COPY proxy /proxy
-RUN pip3 install --no-cache-dir -r /proxy/requirements.txt
+
+# Create a virtual environment for Python
+RUN python3 -m venv /opt/venv
+ENV PATH="/opt/venv/bin:$PATH"
+
+# Install Python dependencies inside the venv
+RUN pip install --no-cache-dir -r /proxy/requirements.txt
 
 # Persistent storage
 VOLUME /data