Upgrade yapf to 0.20.0

Upgrade yapf version to 0.20.0 and reformat Python files.

2 files changed, 5 insertions, 3 deletions

diff --git a/tools/line_count/collect-history.py b/tools/line_count/collect-history.py
index d2d5c95705..c8e33c9ed2 100755
--- a/tools/line_count/collect-history.py
+++ b/tools/line_count/collect-history.py
@@ -31,7 +31,8 @@ end_date = datetime.date(2017, 3, 29)
 for dt in daterange(start_date, end_date):
     dmy = dt.strftime('%Y-%m-%d')
     sha1 = subprocess.check_output(
-        ['git', 'rev-list', '-n', '1', '--before=%s' % dmy, 'master']).strip()
+        ['git', 'rev-list', '-n', '1',
+         '--before=%s' % dmy, 'master']).strip()
     subprocess.check_call(['git', 'checkout', sha1])
     subprocess.check_call(['git', 'submodule', 'update'])
     subprocess.check_call(['git', 'clean', '-f', '-x', '-d'])
diff --git a/tools/line_count/summarize-history.py b/tools/line_count/summarize-history.py
index 80b0ed7a7e..4a085999a5 100755
--- a/tools/line_count/summarize-history.py
+++ b/tools/line_count/summarize-history.py
@@ -32,6 +32,7 @@ for dt in daterange(start_date, end_date):
     dmy = dt.strftime('%Y-%m-%d')
     print dmy
     subprocess.check_call([
-        'tools/line_count/yaml2csv.py', '-i', '../count/%s.yaml' % dmy, '-d',
-        dmy, '-o', '../count/%s.csv' % dmy
+        'tools/line_count/yaml2csv.py', '-i',
+        '../count/%s.yaml' % dmy, '-d', dmy, '-o',
+        '../count/%s.csv' % dmy
     ])