[PATCH master 4/4] http.client: Reduce performance impact by assertion

[Michael Hanselmann]

Call dict.values once instead of N times.
---
 lib/http/client.py |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/lib/http/client.py b/lib/http/client.py
index 84cd0b7..1e02e4c 100644
--- a/lib/http/client.py
+++ b/lib/http/client.py
@@ -352,10 +352,11 @@ class HttpClientPool:
     """Returns HTTP clients to the pool.
 
     """
+    assert not frozenset(pclients) & frozenset(self._pool.values())
+
     for pc in pclients:
       self._logger.debug("Returning client %s to pool", pc)
       assert pc.identity not in self._pool
-      assert pc not in self._pool.values()
       self._pool[pc.identity] = pc
 
     # Check for unused clients
-- 
1.7.6