Use pipenv and pyenv for CI/CD pipeline.

cicd/python-build/Dockerfile

@@ -3,4 +3,19 @@ FROM ubuntu:18.04
 MAINTAINER sumner "https://gitlab.com/sumner"
 
 RUN apt update && \
-    apt install -y python3-pip libcairo2-dev pkg-config libgtk-3-dev libmpv-dev libglib2.0-dev gir1.2-notify-0.7
+    export TZ=America/Denver DEBIAN_FRONTEND=noninteractive && \
+    apt install -y \
+        python3-pip libcairo2-dev pkg-config libgtk-3-dev libmpv-dev \
+        libglib2.0-dev gir1.2-notify-0.7 make build-essential libssl-dev \
+        zlib1g-dev libbz2-dev libreadline-dev libsqlite3-dev wget curl llvm \
+        libncurses5-dev libncursesw5-dev xz-utils tk-dev libffi-dev \
+        liblzma-dev python-openssl git libgirepository1.0-dev
+
+RUN cd /usr/local/src && \
+    curl -L https://github.com/pyenv/pyenv-installer/raw/master/bin/pyenv-installer | bash
+
+RUN pip3 install pipenv
+
+# Install the correct Python version with pyenv
+COPY install-python.sh /tmp/install-python.sh
+RUN /tmp/install-python.sh

cicd/python-build/install-python.sh

@@ -0,0 +1,6 @@
+#! /bin/sh
+export PYENV_ROOT="${HOME}/.pyenv"
+export PATH="${PYENV_ROOT}/bin:$PATH"
+eval "$(pyenv init -)"
+
+pyenv install 3.8.0