feat: update minimum supported python version to 3.6

This commit moves the project's minimum supported python version
from 3.5 to 3.6.  Python 3.5 has long-ago passed its "end of service"
date.   This project is now built and tested on python versions
3.6, 3.7, 3.8 and 3.9.

Author: padamstx

.travis.yml

@@ -2,10 +2,10 @@ language: python
 
 matrix:
   include:
-    - python: 3.5
     - python: 3.6
     - python: 3.7
     - python: 3.8
+    - python: 3.9
 
 dist: xenial
 
@@ -39,13 +39,13 @@ deploy:
     script: npx semantic-release
     skip_cleanup: true
     on:
-      python: '3.5'
+      python: '3.6'
       branch: master
   - provider: pypi
     user: $PYPI_USER
     password: $PYPI_TOKEN
     repository: https://upload.pypi.org/legacy
     skip_cleanup: true
     on:
-      python: '3.5'
+      python: '3.6'
       tags: true

Makefile

@@ -5,6 +5,7 @@
 setup: deps dev_deps install_project
 
 deps:
+	python -m pip install --upgrade pip
 	python -m pip install -r requirements.txt
 
 dev_deps:

README.md

@@ -9,7 +9,7 @@ This project contains core functionality required by Python code generated by th
 (openapi-sdkgen).
 
 # Python Version
-The current minimum Python version supported is 3.5.3.
+The current minimum Python version supported is 3.6.
 
 ## Installation
 

requirements-dev.txt

@@ -1,14 +1,7 @@
-# test dependencies
-pytest>=3.10.1,<7.0.0
-responses>=0.9.0,<1.0.0
-pylint>=2.0.0,<3.0.0
-tox>=2.9.1,<4.0.0
-pytest-rerunfailures>=5.0,<10.0.0
-
-# code coverage
-coverage<5,<6.0.0
-codecov>=1.6.3,<3.0.0
+codecov>=2.1.0,<3.0.0
+coverage>=4.5.4
+pylint>=2.6.0,<3.0.0
+pytest>=6.2.1,<7.0.0
 pytest-cov>=2.2.1,<3.0.0
-
-# semantic
-bumpversion>=0.5.3,<1.0.0
+responses>=0.12.1,<1.0.0
+tox>=3.2.0,<4.0.0

requirements.txt

@@ -1,3 +1,3 @@
 requests>=2.20,<3.0
 python_dateutil>=2.5.3,<3.0.0
-PyJWT>=2.0.0a1,<3.0.0
+PyJWT>=2.0.1,<3.0.0

setup.py

@@ -68,10 +68,10 @@ def run_tests(self):
       classifiers=[
           'Programming Language :: Python',
           'Programming Language :: Python :: 3',
-          'Programming Language :: Python :: 3.5',
           'Programming Language :: Python :: 3.6',
           'Programming Language :: Python :: 3.7',
           'Programming Language :: Python :: 3.8',
+          'Programming Language :: Python :: 3.9',
           'Development Status :: 5 - Production/Stable',
           'Intended Audience :: Developers',
           'License :: OSI Approved :: Apache Software License',

test/test_jwt_token_manager.py

@@ -93,9 +93,7 @@ def test_is_token_expired():
 def test_abstract_class_instantiation():
     with pytest.raises(TypeError) as err:
         JWTTokenManager(None)
-    assert str(err.value) == "Can't instantiate abstract class " \
-                             "JWTTokenManager with abstract methods " \
-                             "request_token"
+    assert str(err.value).startswith("Can't instantiate abstract class JWTTokenManager with abstract")
 
 def test_disable_ssl_verification():
     token_manager = JWTTokenManagerMockImpl('https://iam.cloud.ibm.com/identity/token')

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py37-lint, py35, py36, py37, py38
+envlist = py37-lint, py36, py37, py38, py39
 
 
 [testenv:py37-lint]
@@ -13,7 +13,7 @@ commands = pylint ibm_cloud_sdk_core test
 passenv = TOXENV CI TRAVIS*
 changedir = test
 commands =
-         pytest --reruns 3 --cov=ibm_cloud_sdk_core
+         pytest --cov=ibm_cloud_sdk_core
          codecov -e TOXENV
 deps =
      -r{toxinidir}/requirements.txt