update all python version in the Dockerfile to 3.7 (apache#10841)

* update all python version in the Dockerfile to 3.7 * update ubuntu 18.04 to ubuntu 20.04
bipinct · Sep 11, 2020 · 7c11c9c · 7c11c9c
1 parent 136f90f
commit 7c11c9c
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diff --git a/Dockerfile b/Dockerfile
@@ -69,7 +69,7 @@ RUN cd /app/superset-frontend \
 ######################################################################
 # Final lean image...
 ######################################################################
-ARG PY_VER=3.6.9
+ARG PY_VER=3.7.9
 FROM python:${PY_VER} AS lean
 
 ENV LANG=C.UTF-8 \
@@ -89,7 +89,7 @@ RUN useradd --user-group --no-create-home --no-log-init --shell /bin/bash supers
             libpq-dev \
         && rm -rf /var/lib/apt/lists/*
 
-COPY --from=superset-py /usr/local/lib/python3.6/site-packages/ /usr/local/lib/python3.6/site-packages/
+COPY --from=superset-py /usr/local/lib/python3.7/site-packages/ /usr/local/lib/python3.7/site-packages/
 # Copying site-packages doesn't move the CLIs, so let's copy them one by one
 COPY --from=superset-py /usr/local/bin/gunicorn /usr/local/bin/celery /usr/local/bin/flask /usr/bin/
 COPY --from=superset-node /app/superset/static/assets /app/superset/static/assets

diff --git a/docs/installation.rst b/docs/installation.rst
@@ -155,9 +155,9 @@ the required dependencies are installed: ::
 
     sudo apt-get install build-essential libssl-dev libffi-dev python-dev python-pip libsasl2-dev libldap2-dev
 
-**Ubuntu 18.04** If you have python3.6 installed alongside with python2.7, as is default on **Ubuntu 18.04 LTS**, run this command also: ::
+**Ubuntu 20.04** the following command will ensure that the required dependencies are installed: ::
 
-    sudo apt-get install build-essential libssl-dev libffi-dev python3.6-dev python-pip libsasl2-dev libldap2-dev
+    sudo apt-get install build-essential libssl-dev libffi-dev python3-dev python-pip libsasl2-dev libldap2-dev
 
 otherwise build for ``cryptography`` fails.