ImportError: No Module namded Crypto

[rcarroll@…]

I am using 9.10 ubuntu. I just put trac on here and am trying to install the gringotts plugin. I am using 0.11.6 and after i do the upgrade I get an error that is stopping me and I am not able to figure out how to get past this.

After sudo trac-admin /var/lib/trac/myproject upgrade I get the following output

GringottPlugin needs an upgrade
 * Upgrading db
 * Initialising Encryption
Traceback (most recent call last):
  File "/usr/local/bin/trac-admin", line 8, in <module>
    load_entry_point('Trac==0.11.6', 'console_scripts', 'trac-admin')()
  File "/usr/local/lib/python2.6/dist-packages/Trac-0.11.6-py2.6.egg/trac/admin/console.py", line 1321, in run
    return admin.onecmd(command)
  File "/usr/local/lib/python2.6/dist-packages/Trac-0.11.6-py2.6.egg/trac/admin/console.py", line 138, in onecmd
    rv = cmd.Cmd.onecmd(self, line) or 0
  File "/usr/lib/python2.6/cmd.py", line 219, in onecmd
    return func(arg)
  File "/usr/local/lib/python2.6/dist-packages/Trac-0.11.6-py2.6.egg/trac/admin/console.py", line 1159, in do_upgrade
    self.__env.upgrade(backup=do_backup)
  File "/usr/local/lib/python2.6/dist-packages/Trac-0.11.6-py2.6.egg/trac/env.py", line 464, in upgrade
    participant.upgrade_environment(db)
  File "build/bdist.linux-i686/egg/gringotts/api.py", line 104, in upgrade_environment
  File "build/bdist.linux-i686/egg/gringotts/api.py", line 66, in do_key_generate
  File "build/bdist.linux-i686/egg/gringotts/ezPyCrypto.py", line 67, in <module>
ImportError: No module named Crypto

[Colin Guthrie]

You are missing one of the requirements: ​http://www.amk.ca/python/code/crypto.html

See GringottsPlugin which mentions this.