Upgrade docker images and drop py3.6 support (#38)

* Fix #36 - Upgrade docker images to buster from stretch

* Fix #37 - Remove 3.6 classifier and update docs

Author: Mark Beacom

Dockerfile

@@ -1,4 +1,4 @@
-FROM python:3.7.3-slim-stretch
+FROM python:3.7-slim-buster
 
 WORKDIR /app
 

Dockerfile-py38

@@ -1,4 +1,4 @@
-FROM python:3.8-rc-slim-stretch
+FROM python:3.8-rc-slim-buster
 
 ARG SYSTEM_PACKAGES="make"
 

README.md

@@ -6,11 +6,11 @@ Python wrapper and CLI for [CloudEndure](https://www.cloudendure.com/)
 
 [Documentation](https://mbeacom.github.io/cloudendure-python/)
 
-Package version: `0.0.6`
+Package version: `0.0.7`
 
 ## Requirements
 
-[Python 3.6+](https://www.python.org/downloads/)
+[Python 3.7+](https://www.python.org/downloads/)
 
 ## Installation & Usage
 

setup.py

@@ -22,8 +22,8 @@
 URL: str = "https://github.com/mbeacom/cloudendure-python"
 EMAIL: str = "[email protected]"
 AUTHOR: str = "Mark Beacom"
-REQUIRES_PYTHON: str = ">=3.6.0"
-VERSION: str = "0.0.6"
+REQUIRES_PYTHON: str = ">=3.7.0"
+VERSION: str = "0.0.7"
 
 REQUIRED: List[str] = ["requests", "boto3", "fire"]
 EXTRAS: Dict[str, List[str]] = {
@@ -138,9 +138,9 @@ def run(self):
         "Operating System :: POSIX :: Linux",
         "Programming Language :: Python",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
+        "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3 :: Only",
         "Programming Language :: Python :: Implementation :: CPython",
         "Topic :: Internet",