py2 removed. (#222)

* py2 removed.

* fixed versions.

* fixed lint error.

* 1 more

.travis.yml

@@ -1,16 +1,8 @@
 language: python
 python:
-  - 2.7
-  - 3.5
   - 3.6
-
-# The below lines are a workaround to get python 3.7 support to work.
-# Remove when Travis officially supports 3.7
-matrix:
-  include:
-    - python: 3.7
-      dist: xenial
-      sudo: true
+  - 3.7
+  - 3.8
 
 git:
   depth: 3

pylintrc

@@ -128,7 +128,9 @@ disable=print-statement,
         dict-keys-not-iterating,
         dict-values-not-iterating,
         similarities,
-        import-outside-toplevel
+        import-outside-toplevel,
+        super-with-arguments,
+        raise-missing-from
 
 # Enable the message, report, category or checker with the given id(s). You can
 # either give multiple identifier separated by comma (,) or put this option

src/setup.py

@@ -31,13 +31,12 @@ setup(
         'Environment :: Console',
         'License :: OSI Approved :: MIT License',
         'Natural Language :: English',
-        'Programming Language :: Python :: 2.7',
-        'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',
-        'Programming Language :: Python :: 3.7'
+        'Programming Language :: Python :: 3.7',
+        'Programming Language :: Python :: 3.8'
     ],
     keywords='servicefabric azure',
-    python_requires='>=2.7,!=3.4,!=3.3,!=3.2,!=3.1,!=3.0,<4',
+    python_requires='>3.5, <4',
     packages=[
         'sfctl',
         'sfctl.helps',