Example code contains incorrect constant names which causes incorrect behavior on error messages or text information.

The example file:

/usr/share/doc/python-pam/examples/pamtest.py

Line 19 contains:

               elif type == PAM.PAM_PROMPT_ERROR_MSG or type == PAM.PAM_PROMPT_TEXT_INFO:

Line 19 should contain:

              elif type == PAM.PAM_ERROR_MSG or type == PAM.PAM_TEXT_INFO:

If the pam module gives text info or an error message, this results in the example giving the following as output:
Go away! (('Authentication service cannot retrieve authentication info', 9))

...when in fact it should (under at least some circumstances) give the following as output:
Good to go!

1) Description: Ubuntu 11.04
Release: 11.04

2) python-pam:
  Installed: 0.4.2-12.2ubuntu2
  Candidate: 0.4.2-12.2ubuntu2
  Version table:
 *** 0.4.2-12.2ubuntu2 0
        500 http://us.archive.ubuntu.com/ubuntu/ natty/main amd64 Packages
        100 /var/lib/dpkg/status

3) See above.
4) See above.