OpenStack Packstack installation error – “ERROR:root:Failed to load plugin from file ssl_001.py”

When running packtack –allinone command if you receive error like below check if python-setuptools is installed. Sometimes I have found it’s not installed during dependency install.

ERROR:root:Failed to load plugin from file ssl_001.py
ERROR:root:Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/packstack/installer/run_setup.py", line 923, in loadPlugins
    moduleobj = __import__(moduleToLoad)
  File "/usr/lib/python2.7/site-packages/packstack/plugins/ssl_001.py", line 20, in <module>
    from OpenSSL import crypto
  File "/usr/lib/python2.7/site-packages/OpenSSL/__init__.py", line 8, in <module>
    from OpenSSL import rand, crypto, SSL
  File "/usr/lib/python2.7/site-packages/OpenSSL/crypto.py", line 13, in <module>
    from cryptography.hazmat.primitives.asymmetric import dsa, rsa
  File "/usr/lib64/python2.7/site-packages/cryptography/hazmat/primitives/asymmetric/rsa.py", line 14, in <module>
    from cryptography.hazmat.backends.interfaces import RSABackend
  File "/usr/lib64/python2.7/site-packages/cryptography/hazmat/backends/__init__.py", line 7, in <module>
    import pkg_resources
ImportError: No module named pkg_resources

ERROR:root:Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/packstack/installer/run_setup.py", line 988, in main
    loadPlugins()
  File "/usr/lib/python2.7/site-packages/packstack/installer/run_setup.py", line 931, in loadPlugins
    raise Exception("Failed to load plugin from file %s" % item)
Exception: Failed to load plugin from file ssl_001.py


ERROR : Failed to load plugin from file ssl_001.py

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