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-rw-r--r--synapse/util/caches/descriptors.py4
-rw-r--r--synapse/util/caches/expiringcache.py2
-rw-r--r--synapse/util/caches/treecache.py2
3 files changed, 4 insertions, 4 deletions
diff --git a/synapse/util/caches/descriptors.py b/synapse/util/caches/descriptors.py
index 88e56e3302..e27917c63a 100644
--- a/synapse/util/caches/descriptors.py
+++ b/synapse/util/caches/descriptors.py
@@ -149,7 +149,7 @@ class CacheDescriptor(object):
         self.lru = lru
         self.tree = tree
 
-        self.arg_names = inspect.getargspec(orig).args[1:num_args+1]
+        self.arg_names = inspect.getargspec(orig).args[1:num_args + 1]
 
         if len(self.arg_names) < self.num_args:
             raise Exception(
@@ -250,7 +250,7 @@ class CacheListDescriptor(object):
         self.num_args = num_args
         self.list_name = list_name
 
-        self.arg_names = inspect.getargspec(orig).args[1:num_args+1]
+        self.arg_names = inspect.getargspec(orig).args[1:num_args + 1]
         self.list_pos = self.arg_names.index(self.list_name)
 
         self.cache = cache
diff --git a/synapse/util/caches/expiringcache.py b/synapse/util/caches/expiringcache.py
index 494226f5ea..62cae99649 100644
--- a/synapse/util/caches/expiringcache.py
+++ b/synapse/util/caches/expiringcache.py
@@ -55,7 +55,7 @@ class ExpiringCache(object):
         def f():
             self._prune_cache()
 
-        self._clock.looping_call(f, self._expiry_ms/2)
+        self._clock.looping_call(f, self._expiry_ms / 2)
 
     def __setitem__(self, key, value):
         now = self._clock.time_msec()
diff --git a/synapse/util/caches/treecache.py b/synapse/util/caches/treecache.py
index 29d02f7e95..03bc1401b7 100644
--- a/synapse/util/caches/treecache.py
+++ b/synapse/util/caches/treecache.py
@@ -58,7 +58,7 @@ class TreeCache(object):
 
             if n:
                 break
-            node_and_keys[i+1][0].pop(k)
+            node_and_keys[i + 1][0].pop(k)
 
         popped, cnt = _strip_and_count_entires(popped)
         self.size -= cnt