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-rw-r--r--synapse/push/push_rule_evaluator.py6
-rw-r--r--synapse/util/caches/dictionary_cache.py10
-rw-r--r--synapse/util/caches/lrucache.py2
3 files changed, 9 insertions, 9 deletions
diff --git a/synapse/push/push_rule_evaluator.py b/synapse/push/push_rule_evaluator.py
index 27b0de4f66..dca018af95 100644
--- a/synapse/push/push_rule_evaluator.py
+++ b/synapse/push/push_rule_evaluator.py
@@ -309,14 +309,14 @@ def _flatten_dict(d, prefix=[], result={}):
     return result
 
 
-regex_cache = LruCache(5000, 1)
+regex_cache = LruCache(5000)
 
 
 def _compile_regex(regex_str):
-    r = regex_cache.get((regex_str,), None)
+    r = regex_cache.get(regex_str, None)
     if r:
         return r
 
     r = re.compile(regex_str, flags=re.IGNORECASE)
-    regex_cache[(regex_str,)] = r
+    regex_cache[regex_str] = r
     return r
diff --git a/synapse/util/caches/dictionary_cache.py b/synapse/util/caches/dictionary_cache.py
index b7964467eb..f92d80542b 100644
--- a/synapse/util/caches/dictionary_cache.py
+++ b/synapse/util/caches/dictionary_cache.py
@@ -32,7 +32,7 @@ class DictionaryCache(object):
     """
 
     def __init__(self, name, max_entries=1000):
-        self.cache = LruCache(max_size=max_entries, keylen=1)
+        self.cache = LruCache(max_size=max_entries)
 
         self.name = name
         self.sequence = 0
@@ -56,7 +56,7 @@ class DictionaryCache(object):
                 )
 
     def get(self, key, dict_keys=None):
-        entry = self.cache.get((key,), self.sentinel)
+        entry = self.cache.get(key, self.sentinel)
         if entry is not self.sentinel:
             cache_counter.inc_hits(self.name)
 
@@ -78,7 +78,7 @@ class DictionaryCache(object):
         # Increment the sequence number so that any SELECT statements that
         # raced with the INSERT don't update the cache (SYN-369)
         self.sequence += 1
-        self.cache.pop((key,), None)
+        self.cache.pop(key, None)
 
     def invalidate_all(self):
         self.check_thread()
@@ -96,8 +96,8 @@ class DictionaryCache(object):
                 self._update_or_insert(key, value)
 
     def _update_or_insert(self, key, value):
-        entry = self.cache.setdefault((key,), DictionaryEntry(False, {}))
+        entry = self.cache.setdefault(key, DictionaryEntry(False, {}))
         entry.value.update(value)
 
     def _insert(self, key, value):
-        self.cache[(key,)] = DictionaryEntry(True, value)
+        self.cache[key] = DictionaryEntry(True, value)
diff --git a/synapse/util/caches/lrucache.py b/synapse/util/caches/lrucache.py
index 23e86ec110..5f9405c95f 100644
--- a/synapse/util/caches/lrucache.py
+++ b/synapse/util/caches/lrucache.py
@@ -29,7 +29,7 @@ def enumerate_leaves(node, depth):
 
 class LruCache(object):
     """Least-recently-used cache."""
-    def __init__(self, max_size, keylen, cache_type=dict):
+    def __init__(self, max_size, keylen=1, cache_type=dict):
         cache = cache_type()
         self.size = 0
         list_root = []