[easy] Add a python3.7 test to gitlab. (#441)

* Add a python3.7 test to gitlab.

* Add setup compat classifiers for py3.6 and py3.7.

Author: DailyDreaming

.gitlab-ci.yml

@@ -36,7 +36,7 @@ stages:
 .windows-test-base:
   stage: test
   before_script:
-    #currently 3.6.8 is offered by the windows-runner
+    # currently 3.6.8 is offered by the windows-runner
     - python --version
     - $env:WINDOWS_PYTHON = python -c 'import sys  ; print(sys.version[0:3])'
     - if (-NOT $env:WINDOWS_PYTHON -eq ${PYTHON_VERSION}) { echo "python missmatch"; exit(1) }
@@ -65,3 +65,8 @@ test-3.6-win:
     PYTHON_VERSIO: "3.6"
   tags:
     - windows
+
+test-3.7:
+  extends: .linux-test-base
+  variables:
+    PYTHON_VERSION: "3.7"

setup.py

@@ -41,6 +41,8 @@
         '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',
         'Topic :: Software Development :: Libraries :: Python Modules'
     ]
 )