Use a specific version of pycodestyle to resolve broken CI tests (#1366)

DonJayamanne · web-flow · commit 9ce03506c418 · 2018-04-10T15:41:49.000-07:00
Fixes #1365
diff --git a/requirements.txt b/requirements.txt
@@ -1,9 +1,11 @@
+# Install flake8 first, as both flake8 and autopep8 require pycodestyle,
+# but flake8 has a tighter pinning.
+flake8
 autopep8
 yapf
 pylint
 pep8
 prospector
-flake8
 pydocstyle
 nose
 pytest
