Introduce virtualenv in Docker image

Author: hovnatan

Dockerfile

@@ -10,18 +10,22 @@ ENV PATH="/root/.local/bin:${PATH}"
 
 
 RUN apt-get update && apt-get install -y \
-	ca-certificates python3 python3-pip libgl1-mesa-dev libglib2.0-0 libsm6 libxrender1 libxext6 nano vim htop && \
+  ca-certificates python3 python3-pip python3-venv libgl1-mesa-dev libglib2.0-0 libsm6 libxrender1 libxext6 nano vim htop && \
   rm -rf /var/lib/apt/lists/*
 
 RUN update-alternatives --install /usr/bin/python python /usr/bin/python3 1
 RUN update-alternatives --install /usr/local/bin/pip pip /usr/bin/pip3 1
 
+ENV VIRTUAL_ENV=/tmp/superannotatesdk
+RUN python -m venv ${VIRTUAL_ENV}
+ENV PATH="${VIRTUAL_ENV}/bin:$PATH"
+
 RUN apt-get install -y build-essential && \
-    pip install --no-cache-dir shapely && \
-    pip install --no-cache-dir ${PIP_FLAGS} superannotate && \
-    apt-get remove -y build-essential && \
-    apt-get -y autoremove && \
-    rm -rf /root/.cache/pip && \
-    rm -rf /var/lib/apt/lists/*
+  pip install --no-cache-dir shapely && \
+  pip install --no-cache-dir ${PIP_FLAGS} superannotate && \
+  apt-get remove -y build-essential && \
+  apt-get -y autoremove && \
+  rm -rf /root/.cache/pip && \
+  rm -rf /var/lib/apt/lists/*
 
 CMD ["/bin/bash"]