Minor optimization -- factor a constant expression out of the inner-loop.
diff --git a/Lib/functools.py b/Lib/functools.py
index 03de69a..fdc9c79 100644
--- a/Lib/functools.py
+++ b/Lib/functools.py
@@ -140,7 +140,7 @@
tuple=tuple, sorted=sorted, len=len, KeyError=KeyError):
hits = misses = 0
- kwd_mark = object() # separates positional and keyword args
+ kwd_mark = (object(),) # separates positional and keyword args
lock = Lock() # needed because ordereddicts aren't threadsafe
if maxsize is None:
@@ -151,7 +151,7 @@
nonlocal hits, misses
key = args
if kwds:
- key += (kwd_mark,) + tuple(sorted(kwds.items()))
+ key += kwd_mark + tuple(sorted(kwds.items()))
try:
result = cache[key]
hits += 1
@@ -170,7 +170,7 @@
nonlocal hits, misses
key = args
if kwds:
- key += (kwd_mark,) + tuple(sorted(kwds.items()))
+ key += kwd_mark + tuple(sorted(kwds.items()))
try:
with lock:
result = cache[key]