Update Dockerfile

Dockerfile

@@ -38,16 +38,8 @@ RUN apt-get update && apt-get install -y \
     python3.9 \
     python3.9-distutils \
     python3.9-dev \
-    && apt-get clean && rm -rf /var/lib/apt/lists/*
-
-# Install pip for Python 3.9
-RUN curl -sS https://bootstrap.pypa.io/get-pip.py | python3.9
-
-# Set Python 3.9 as the default Python version
-RUN update-alternatives --install /usr/bin/python python /usr/bin/python3.9 1 && \
-    update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.9 1 && \
-    update-alternatives --config python <<< '1' && \
-    update-alternatives --config python3 <<< '1'
+    && update-alternatives --install /usr/bin/python python /usr/bin/python3.9 1 \
+    && rm -rf /var/lib/apt/lists/*
 
 # Verify Python and pip versions
 RUN python --version && pip --version