Index: include-fixer/tool/clang-include-fixer.py
===================================================================
--- include-fixer/tool/clang-include-fixer.py
+++ include-fixer/tool/clang-include-fixer.py
@@ -28,22 +28,23 @@
 if vim.eval('exists("g:clang_include_fixer_path")') == "1":
   binary = vim.eval('g:clang_include_fixer_path')
 
-maximum_suggested_headers=3
+maximum_suggested_headers = 3
 if vim.eval('exists("g:clang_include_fixer_maximum_suggested_headers")') == "1":
   maximum_suggested_headers = max(
       1,
       vim.eval('g:clang_include_fixer_maximum_suggested_headers'))
 
-increment_num=5
+increment_num = 5
 if vim.eval('exists("g:clang_include_fixer_increment_num")') == "1":
   increment_num = max(
       1,
       vim.eval('g:clang_include_fixer_increment_num'))
 
+
 def GetUserSelection(message, headers, maximum_suggested_headers):
   eval_message = message + '\n'
   for idx, header in enumerate(headers[0:maximum_suggested_headers]):
-    eval_message += "({0}). {1}\n".format(idx+1, header)
+    eval_message += "({0}). {1}\n".format(idx + 1, header)
   eval_message += "Enter (q) to quit;"
   if maximum_suggested_headers < len(headers):
     eval_message += " (m) to show {0} more candidates.".format(
@@ -69,7 +70,8 @@
       # don't need to wait for another include-fixer run.
       print >> sys.stderr, "Invalid option:", res
       return GetUserSelection(message, headers, maximum_suggested_headers)
-  return headers[idx-1]
+  return headers[idx - 1]
+
 
 def execute(command, text):
   p = subprocess.Popen(command,
@@ -79,7 +81,7 @@
 
 
 def InsertHeaderToVimBuffer(header, text):
-  command = [binary, "-stdin", "-insert-header="+json.dumps(header),
+  command = [binary, "-stdin", "-insert-header=" + json.dumps(header),
              vim.current.buffer.name]
   stdout, stderr = execute(command, text)
   if stdout:
@@ -104,8 +106,8 @@
   text = '\n'.join(buf)
 
   # Run command to get all headers.
-  command = [binary, "-stdin", "-output-headers", "-db="+args.db,
-             "-input="+args.input, vim.current.buffer.name]
+  command = [binary, "-stdin", "-output-headers", "-db=" + args.db,
+             "-input=" + args.input, vim.current.buffer.name]
   stdout, stderr = execute(command, text)
   if stderr:
     print >> sys.stderr, "Error while running clang-include-fixer: " + stderr
@@ -127,7 +129,7 @@
   # If there is only one suggested header, insert it directly.
   if len(headers) == 1 or maximum_suggested_headers == 1:
     InsertHeaderToVimBuffer({"SymbolIdentifier": symbol,
-                             "Headers":[headers[0]]}, text)
+                             "Headers": [headers[0]]}, text)
     print "Added #include {0} for {1}.\n".format(headers[0], symbol)
     return
 
@@ -136,7 +138,7 @@
                                 headers, maximum_suggested_headers)
     # Insert a selected header.
     InsertHeaderToVimBuffer({"SymbolIdentifier": symbol,
-                             "Headers":[selected]}, text)
+                             "Headers": [selected]}, text)
     print "Added #include {0} for {1}.\n".format(selected, symbol)
   except Exception as error:
     print >> sys.stderr, error.message