Fix flake8 violations

Add tox rule to prevent regressions.

1 files changed, 5 insertions, 4 deletions

diff --git a/dummyserver/proxy.py b/dummyserver/proxy.py
index aca92a70..5b9984d1 100755
--- a/dummyserver/proxy.py
+++ b/dummyserver/proxy.py
@@ -45,14 +45,14 @@ class ProxyHandler(tornado.web.RequestHandler):
 
         def handle_response(response):
             if response.error and not isinstance(response.error,
-                    tornado.httpclient.HTTPError):
+                                                 tornado.httpclient.HTTPError):
                 self.set_status(500)
                 self.write('Internal server error:\n' + str(response.error))
                 self.finish()
             else:
                 self.set_status(response.code)
                 for header in ('Date', 'Cache-Control', 'Server',
-                        'Content-Type', 'Location'):
+                               'Content-Type', 'Location'):
                     v = response.headers.get(header)
                     if v:
                         self.set_header(header, v)
@@ -60,7 +60,8 @@ class ProxyHandler(tornado.web.RequestHandler):
                     self.write(response.body)
                 self.finish()
 
-        req = tornado.httpclient.HTTPRequest(url=self.request.uri,
+        req = tornado.httpclient.HTTPRequest(
+            url=self.request.uri,
             method=self.request.method, body=self.request.body,
             headers=self.request.headers, follow_redirects=False,
             allow_nonstandard_methods=True)
@@ -133,5 +134,5 @@ if __name__ == '__main__':
     if len(sys.argv) > 1:
         port = int(sys.argv[1])
 
-    print ("Starting HTTP proxy on port %d" % port)
+    print("Starting HTTP proxy on port %d" % port)
     run_proxy(port)