Is this all?

Pretty much the same as the python3 image but based on the manylinux2014
image. The point is when building wheel (or binaries with Pyinstaller)
it would be pretty portable to older distros.

Dockerfile

+# hadolint ignore=DL3006
+FROM quay.io/pypa/manylinux2014_x86_64
+ENV PATH /opt/python/cp36-cp36m/bin:/opt/rh/devtoolset-9/root/usr/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+# hadolint ignore=DL3013
+RUN pip install --no-cache-dir --progress-bar=off \
+        docutils \
+        pipenv \
+        poetry \
+        pygments \
+        pyinstaller \
+        tox \
+        twine \
+        wheel \
+    && \
+    rm -rf /tmp/* /var/tmp/* /root/.cache/*