tests: replace pycodestyle with black

Drop pycodestyle for code style checking in favor of black. Black is
much faster, stable PEP8 compliant code style checker offering also
automatic formatting. It aims to be very stable and produce smallest
diffs. It's used by many small and big projects.

Running checkstyle with black takes a few seconds with a terse output.
Thus, test-checkstyle-diff is no longer necessary.

Expand scope of checkstyle to all python files in the repo, replacing
test-checkstyle with checkstyle-python.

Also, fixstyle-python is now available for automatic style formatting.

Note: python virtualenv has been consolidated in test/Makefile,
test/requirements*.txt which will eventually be moved to a central
location.  This is required to simply the automated generation of
docker executor images in the CI.

Type: improvement
Change-Id: I022a326603485f58585e879ac0f697fceefbc9c8
Signed-off-by: Klement Sekera <klement.sekera@gmail.com>
Signed-off-by: Dave Wallace <dwallacelf@gmail.com>

1 files changed, 15 insertions, 15 deletions

diff --git a/docs/_scripts/siphon/process_clicmd.py b/docs/_scripts/siphon/process_clicmd.py
index bf270518ad1..afc24ae6da1 100644
--- a/docs/_scripts/siphon/process_clicmd.py
+++ b/docs/_scripts/siphon/process_clicmd.py
@@ -17,6 +17,7 @@
 from . import process, parsers
 import os
 
+
 class SiphonCLICMD(process.Siphon):
 
     name = "clicmd"
@@ -32,37 +33,36 @@ class SiphonCLICMD(process.Siphon):
         return self.page_label(group) + ".rst"
 
     def index_sort_key(self, group):
-        _global = self._cmds['_global']
+        _global = self._cmds["_global"]
         if group not in self._group:
             return group
         (directory, file) = self._group[group]
 
-        if file in _global and 'group_label' in _global[file]:
-            return _global[file]['group_label']
+        if file in _global and "group_label" in _global[file]:
+            return _global[file]["group_label"]
 
-        if directory in _global and 'group_label' in _global[directory]:
-            return _global[directory]['group_label']
+        if directory in _global and "group_label" in _global[directory]:
+            return _global[directory]["group_label"]
 
         return group
 
     def item_sort_key(self, item):
-        return item['value']['path']
+        return item["value"]["path"]
 
     def item_label(self, group, item):
-        return "_".join((
-            self.name,
-            self.sanitize_label(self._cmds[group][item]['value']['path'])
-        ))
+        return "_".join(
+            (self.name, self.sanitize_label(self._cmds[group][item]["value"]["path"]))
+        )
 
     def page_title(self, group):
-        _global = self._cmds['_global']
+        _global = self._cmds["_global"]
         (directory, file) = self._group[group]
 
-        if file and file in _global and 'group_label' in _global[file]:
-            return _global[file]['group_label']
+        if file and file in _global and "group_label" in _global[file]:
+            return _global[file]["group_label"]
 
-        if directory in _global and 'group_label' in _global[directory]:
-            return _global[directory]['group_label']
+        if directory in _global and "group_label" in _global[directory]:
+            return _global[directory]["group_label"]
 
         file_ext = os.path.basename(directory)
         fname, ext = os.path.splitext(file_ext)