Update python Docker tag [(#2785)](GoogleCloudPlatform/python-docs-samples#2785)

renovate-bot · web-flow · commit e7c7eb72c87c · 2020-02-07T10:35:01.000-08:00
diff --git a/samples/appengine/flexible/tasks/Dockerfile b/samples/appengine/flexible/tasks/Dockerfile
@@ -1,6 +1,6 @@
 # Use the official Python image.
 # https://hub.docker.com/_/python
-FROM python:3.7
+FROM python:3.8
 
 # Copy local code to the container image.
 ENV APP_HOME /app
