rhui-manager fails to start

Issue

• rhui-manager fails to start:

[root@rhua ~]# rhui-manager
Traceback (most recent call last):
  File "/usr/bin/rhui-manager", line 13, in <module>
    import rhui.tools.launcher
  File "/usr/lib/python2.6/site-packages/rhui/tools/launcher.py", line 23, in <module>
    import pulp.client.api.server
  File "/usr/lib/python2.6/site-packages/pulp/client/api/server.py", line 27, in <module>
    from M2Crypto import SSL, httpslib
  File "/usr/lib64/python2.6/site-packages/M2Crypto/SSL/__init__.py", line 16, in <module>
    from Context import Context
  File "/usr/lib64/python2.6/site-packages/M2Crypto/SSL/Context.py", line 11, in <module>
    from M2Crypto import util, BIO, Err, RSA, m2, X509
  File "/usr/lib64/python2.6/site-packages/M2Crypto/RSA.py", line 18, in <module>
    class RSA:
  File "/usr/lib64/python2.6/site-packages/M2Crypto/RSA.py", line 65, in RSA
    def save_key_bio(self, bio, cipher='aes_128_cbc', callback=util.passphrase_callback):
AttributeError: 'module' object has no attribute 'passphrase_callback'