Merge be64a7e into 1087090

Dockerfile.python.drf_ms_pg

@@ -1,4 +1,4 @@
-FROM python:3.8.3-alpine
+FROM python:3.9.2-alpine
 
 # PYTHONDONTWRITEBYTECODE: Prevents Python from writing pyc files to disc (equivalent to python -B option)
 # PYTHONUNBUFFERED: Prevents Python from buffering stdout and stderr (equivalent to python -u option)