zkpython memory leak

                 Key: ZOOKEEPER-792
                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-792
             Project: Zookeeper
          Issue Type: Bug
          Components: contrib-bindings
    Affects Versions: 3.3.1
         Environment: vmware workstation - guest OS:Linux python:2.4.3
            Reporter: Lei Zhang

We recently upgraded zookeeper from 3.2.1 to 3.3.1, now we are seeing less 
client deadlock on session expiration, which is a definite plus!

Unfortunately we are seeing memory leak that requires our zk clients to be 
restarted every half-day. Valgrind result:

==8804== 25 (12 direct, 13 indirect) bytes in 1 blocks are definitely lost in 
loss record 255 of 670
==8804==    at 0x4021C42: calloc (vg_replace_malloc.c:418)
==8804==    by 0x5047B42: parse_acls (zookeeper.c:369)
==8804==    by 0x5047EF6: pyzoo_create (zookeeper.c:1009)
==8804==    by 0x40786CC: PyCFunction_Call (in /usr/lib/libpython2.4.so.1.0)
==8804==    by 0x40B31DC: PyEval_EvalFrame (in /usr/lib/libpython2.4.so.1.0)
==8804==    by 0x40B4485: PyEval_EvalCodeEx (in /usr/lib/libpython2.4.so.1.0)

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