soft-deprecate python 3.3 and 3.4

Author: Roguelazer

.travis.yml

@@ -2,14 +2,16 @@ language: python
 matrix:
   include:
   - python: '2.7'
-  - python: '3.4'
   - python: '3.5'
   - python: '3.6'
   - python: pypy
   - python: pypy3.5
   - python: 3.7
     dist: xenial
     sudo: true
+  - python: 3.8
+    dist: xenial
+    sudo: true
 install:
 - pip install six requests
 - pip install -r requirements-tests.txt

README.md

@@ -8,7 +8,7 @@ EasyPost is the simple shipping API. You can sign up for an account at <https://
 Requirements
 ------------
 
-* [Python](https://www.python.org) 2.7 or 3.3+ (or corresponding [PyPy](https://pypy.org) versions).
+* [Python](https://www.python.org) 2.7 or 3.3+ (or corresponding [PyPy](https://pypy.org) versions). Note that we only test on Python 2.7 and 3.5+; we strongly recommend against using 3.3.x or 3.4.x as they are no longer supported by many libraries.
 * [requests](http://docs.python-requests.org/en/latest/) (if not on Google App Engine)
 * [six](https://pythonhosted.org/six/)
 

setup.py

@@ -44,11 +44,10 @@
         "Environment :: Web Environment",
         "Programming Language :: Python",
         "Programming Language :: Python :: 2.7",
-        "Programming Language :: Python :: 3.3",
-        "Programming Language :: Python :: 3.4",
         "Programming Language :: Python :: 3.5",
         "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
+        "Programming Language :: Python :: 3.8",
         "Intended Audience :: Developers",
         "Operating System :: OS Independent",
         "License :: OSI Approved :: MIT License",