Run Black.

.buildkite/pipeline.yml

@@ -5,8 +5,8 @@ steps:
 
   - command:
       - "python -m pip install tox"
-      - "tox -e pep8"
-    label: "\U0001F9F9 PEP-8"
+      - "tox -e check_codestyle"
+    label: "\U0001F9F9 Check Style"
     plugins:
       - docker#v3.0.1:
           image: "python:3.6"

changelog.d/5482.misc

@@ -0,0 +1 @@
+Synapse's codebase is now formatted by `black`.

contrib/cmdclient/http.py

@@ -73,9 +73,7 @@ def __init__(self):
     @defer.inlineCallbacks
     def put_json(self, url, data):
         response = yield self._create_put_request(
-            url,
-            data,
-            headers_dict={"Content-Type": ["application/json"]}
+            url, data, headers_dict={"Content-Type": ["application/json"]}
         )
         body = yield readBody(response)
         defer.returnValue((response.code, body))
@@ -95,40 +93,34 @@ def _create_put_request(self, url, json_data, headers_dict={}):
         """
 
         if "Content-Type" not in headers_dict:
-            raise defer.error(
-                RuntimeError("Must include Content-Type header for PUTs"))
+            raise defer.error(RuntimeError("Must include Content-Type header for PUTs"))
 
         return self._create_request(
-            "PUT",
-            url,
-            producer=_JsonProducer(json_data),
-            headers_dict=headers_dict
+            "PUT", url, producer=_JsonProducer(json_data), headers_dict=headers_dict
         )
 
     def _create_get_request(self, url, headers_dict={}):
         """ Wrapper of _create_request to issue a GET request
         """
-        return self._create_request(
-            "GET",
-            url,
-            headers_dict=headers_dict
-        )
+        return self._create_request("GET", url, headers_dict=headers_dict)
 
     @defer.inlineCallbacks
-    def do_request(self, method, url, data=None, qparams=None, jsonreq=True, headers={}):
+    def do_request(
+        self, method, url, data=None, qparams=None, jsonreq=True, headers={}
+    ):
         if qparams:
             url = "%s?%s" % (url, urllib.urlencode(qparams, True))
 
         if jsonreq:
             prod = _JsonProducer(data)
-            headers['Content-Type'] = ["application/json"];
+            headers["Content-Type"] = ["application/json"]
         else:
             prod = _RawProducer(data)
 
         if method in ["POST", "PUT"]:
-            response = yield self._create_request(method, url,
-                    producer=prod,
-                    headers_dict=headers)
+            response = yield self._create_request(
+                method, url, producer=prod, headers_dict=headers
+            )
         else:
             response = yield self._create_request(method, url)
 
@@ -155,10 +147,7 @@ def _create_request(self, method, url, producer=None, headers_dict={}):
         while True:
             try:
                 response = yield self.agent.request(
-                    method,
-                    url.encode("UTF8"),
-                    Headers(headers_dict),
-                    producer
+                    method, url.encode("UTF8"), Headers(headers_dict), producer
                 )
                 break
             except Exception as e:
@@ -179,6 +168,7 @@ def sleep(self, seconds):
         reactor.callLater(seconds, d.callback, seconds)
         return d
 
+
 class _RawProducer(object):
     def __init__(self, data):
         self.data = data
@@ -195,9 +185,11 @@ def pauseProducing(self):
     def stopProducing(self):
         pass
 
+
 class _JsonProducer(object):
     """ Used by the twisted http client to create the HTTP body from json
     """
+
     def __init__(self, jsn):
         self.data = jsn
         self.body = json.dumps(jsn).encode("utf8")

contrib/experiments/cursesio.py

@@ -19,13 +19,13 @@
 from twisted.internet import reactor
 
 
-class CursesStdIO():
+class CursesStdIO:
     def __init__(self, stdscr, callback=None):
         self.statusText = "Synapse test app -"
-        self.searchText = ''
+        self.searchText = ""
         self.stdscr = stdscr
 
-        self.logLine = ''
+        self.logLine = ""
 
         self.callback = callback
 
@@ -71,8 +71,7 @@ def redraw(self):
         i = 0
         index = len(self.lines) - 1
         while i < (self.rows - 3) and index >= 0:
-            self.stdscr.addstr(self.rows - 3 - i, 0, self.lines[index],
-                               curses.A_NORMAL)
+            self.stdscr.addstr(self.rows - 3 - i, 0, self.lines[index], curses.A_NORMAL)
             i = i + 1
             index = index - 1
 
@@ -85,15 +84,13 @@ def paintStatus(self, text):
             raise RuntimeError("TextTooLongError")
 
         self.stdscr.addstr(
-            self.rows - 2, 0,
-            text + ' ' * (self.cols - len(text)),
-            curses.A_STANDOUT)
+            self.rows - 2, 0, text + " " * (self.cols - len(text)), curses.A_STANDOUT
+        )
 
     def printLogLine(self, text):
         self.stdscr.addstr(
-            0, 0,
-            text + ' ' * (self.cols - len(text)),
-            curses.A_STANDOUT)
+            0, 0, text + " " * (self.cols - len(text)), curses.A_STANDOUT
+        )
 
     def doRead(self):
         """ Input is ready! """
@@ -105,7 +102,7 @@ def doRead(self):
 
         elif c == curses.KEY_ENTER or c == 10:
             text = self.searchText
-            self.searchText = ''
+            self.searchText = ""
 
             self.print_line(">> %s" % text)
 
@@ -122,11 +119,13 @@ def doRead(self):
                 return
             self.searchText = self.searchText + chr(c)
 
-        self.stdscr.addstr(self.rows - 1, 0,
-                           self.searchText + (' ' * (
-                           self.cols - len(self.searchText) - 2)))
+        self.stdscr.addstr(
+            self.rows - 1,
+            0,
+            self.searchText + (" " * (self.cols - len(self.searchText) - 2)),
+        )
 
-        self.paintStatus(self.statusText + ' %d' % len(self.searchText))
+        self.paintStatus(self.statusText + " %d" % len(self.searchText))
         self.stdscr.move(self.rows - 1, len(self.searchText))
         self.stdscr.refresh()
 
@@ -143,7 +142,6 @@ def close(self):
 
 
 class Callback(object):
-
     def __init__(self, stdio):
         self.stdio = stdio
 
@@ -152,7 +150,7 @@ def on_line(self, text):
 
 
 def main(stdscr):
-    screen = CursesStdIO(stdscr)   # create Screen object
+    screen = CursesStdIO(stdscr)  # create Screen object
 
     callback = Callback(screen)
 
@@ -164,5 +162,5 @@ def main(stdscr):
     screen.close()
 
 
-if __name__ == '__main__':
+if __name__ == "__main__":
     curses.wrapper(main)