Merge pull request #2568 from matrix-org/rav/pep8

PEP8 fixes

5 files changed, 15 insertions, 18 deletions

diff --git a/synapse/util/__init__.py b/synapse/util/__init__.py
index 2a2360ab5d..756d8ffa32 100644
--- a/synapse/util/__init__.py
+++ b/synapse/util/__init__.py
@@ -59,9 +59,9 @@ class Clock(object):
             f(function): The function to call repeatedly.
             msec(float): How long to wait between calls in milliseconds.
         """
-        l = task.LoopingCall(f)
-        l.start(msec / 1000.0, now=False)
-        return l
+        call = task.LoopingCall(f)
+        call.start(msec / 1000.0, now=False)
+        return call
 
     def call_later(self, delay, callback, *args, **kwargs):
         """Call something later
@@ -82,7 +82,7 @@ class Clock(object):
     def cancel_call_later(self, timer, ignore_errs=False):
         try:
             timer.cancel()
-        except:
+        except Exception:
             if not ignore_errs:
                 raise
 
@@ -97,12 +97,12 @@ class Clock(object):
 
             try:
                 ret_deferred.errback(e)
-            except:
+            except Exception:
                 pass
 
             try:
                 given_deferred.cancel()
-            except:
+            except Exception:
                 pass
 
         timer = None
@@ -110,7 +110,7 @@ class Clock(object):
         def cancel(res):
             try:
                 self.cancel_call_later(timer)
-            except:
+            except Exception:
                 pass
             return res
 
@@ -119,7 +119,7 @@ class Clock(object):
         def success(res):
             try:
                 ret_deferred.callback(res)
-            except:
+            except Exception:
                 pass
 
             return res
@@ -127,7 +127,7 @@ class Clock(object):
         def err(res):
             try:
                 ret_deferred.errback(res)
-            except:
+            except Exception:
                 pass
 
         given_deferred.addCallbacks(callback=success, errback=err)
diff --git a/synapse/util/async.py b/synapse/util/async.py
index a0a9039475..1a884e96ee 100644
--- a/synapse/util/async.py
+++ b/synapse/util/async.py
@@ -73,7 +73,7 @@ class ObservableDeferred(object):
                 try:
                     # TODO: Handle errors here.
                     self._observers.pop().callback(r)
-                except:
+                except Exception:
                     pass
             return r
 
@@ -83,7 +83,7 @@ class ObservableDeferred(object):
                 try:
                     # TODO: Handle errors here.
                     self._observers.pop().errback(f)
-                except:
+                except Exception:
                     pass
 
             if consumeErrors:
@@ -205,7 +205,7 @@ class Linearizer(object):
             try:
                 with PreserveLoggingContext():
                     yield current_defer
-            except:
+            except Exception:
                 logger.exception("Unexpected exception in Linearizer")
 
             logger.info("Acquired linearizer lock %r for key %r", self.name,
diff --git a/synapse/util/logcontext.py b/synapse/util/logcontext.py
index 990216145e..9683cc7265 100644
--- a/synapse/util/logcontext.py
+++ b/synapse/util/logcontext.py
@@ -42,7 +42,7 @@ try:
 
     def get_thread_resource_usage():
         return resource.getrusage(RUSAGE_THREAD)
-except:
+except Exception:
     # If the system doesn't support resource.getrusage(RUSAGE_THREAD) then we
     # won't track resource usage by returning None.
     def get_thread_resource_usage():
diff --git a/synapse/util/retryutils.py b/synapse/util/retryutils.py
index 4fa9d1a03c..1adedbb361 100644
--- a/synapse/util/retryutils.py
+++ b/synapse/util/retryutils.py
@@ -189,7 +189,7 @@ class RetryDestinationLimiter(object):
                 yield self.store.set_destination_retry_timings(
                     self.destination, retry_last_ts, self.retry_interval
                 )
-            except:
+            except Exception:
                 logger.exception(
                     "Failed to store set_destination_retry_timings",
                 )
diff --git a/synapse/util/wheel_timer.py b/synapse/util/wheel_timer.py
index 7412fc57a4..b70f9a6b0a 100644
--- a/synapse/util/wheel_timer.py
+++ b/synapse/util/wheel_timer.py
@@ -91,7 +91,4 @@ class WheelTimer(object):
         return ret
 
     def __len__(self):
-        l = 0
-        for entry in self.entries:
-            l += len(entry.queue)
-        return l
+        return sum(len(entry.queue) for entry in self.entries)