From 7c11c9ce1615e3e0eac3eabd662ddee388eb2ad8 Mon Sep 17 00:00:00 2001
From: cyw233 <49756587+cyw233@users.noreply.github.com>
Date: Fri, 11 Sep 2020 21:33:15 +1000
Subject: [PATCH] update all python version in the Dockerfile to 3.7 (#10841)

* update all python version in the Dockerfile to 3.7

* update ubuntu 18.04 to ubuntu 20.04
---
 Dockerfile            | 4 ++--
 docs/installation.rst | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index 9617a1ba3..b36744e89 100644
--- 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
index 15ae94c61..86ff546be 100644
--- 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.