Drop support for Python 3.3

Author: Andrey

.travis.yml

@@ -8,9 +8,6 @@ matrix:
     - python: 2.7
       env: TOXENV=py27-flake8_26,py27-flake8_3
 
-    - python: 3.3
-      env: TOXENV=py33-flake8_26,py33-flake8_3
-
     - python: 3.4
       env: TOXENV=py34-flake8_26,py34-flake8_3
 

tox.ini

@@ -1,12 +1,11 @@
 [tox]
-envlist = py{27,33,34,35}-flake8_{26,3}
+envlist = py{27,34,35}-flake8_{26,3}
 
 [testenv]
 setenv =
     py27: COVERAGE_MAJOR = 2
     py27: COVERAGE_MAJORMINOR = 27
-    py{33,34,35}: COVERAGE_MAJOR = 3
-    py33: COVERAGE_MAJORMINOR = 33
+    py{34,35}: COVERAGE_MAJOR = 3
     py34: COVERAGE_MAJORMINOR = 34
     py35: COVERAGE_MAJORMINOR = 35
     TOX_ENVNAME = {envname}