==== Required information ====
- iRedMail version:
- Store mail accounts in which backend (LDAP/MySQL/PGSQL):
- Linux/BSD distribution name and version:
- Related log if you're reporting an issue:
====

iRedMail version :  Version: 0.3
Storing mail accounts using backend : PGSQL
Linux Distro : Debian 7 (Wheezy)
Python 2.7.3
Apache/2.2.22

I installed my iRedMail based off instructions / guide here : http://www.iredmail.org/install_iredmail_on_debian.html

And after a hectic process spanning about 12 hours, finally managed to upgrade my Debian 6 to 7, and then finally to install iRedMail. The final clue that all was well was when I reached this message in the setup:

********************************************************************
* URLs of installed web applications:
*
* - Webmail: httpS://<server>/mail/
* - Admin Panel (iRedAdmin): httpS://<server>/iredadmin/
*

********************************************************************
* Congratulations, mail server setup completed successfully. Please
* read below file for more information:
*
*   -[PATH]mail_setup/iRedMail-0.8.6/iRedMail.tips
*
* And it's sent to your mail account .
*
* Please reboot your system to enable mail services.
*
********************************************************************

I rebooted, and then checked the said tips file...

Then I tried to access my iredadmin via a browser:

https://<server>/iredadmin

And that's where I've been stuck with a nasty 500! almost all day long!

Relevant apache log:
====================

[Tue Apr 29 14:41:48 2014] [error] python_init: Python version mismatch, expected '2.7.2+', found '2.7.3'.
[Tue Apr 29 14:41:48 2014] [error] python_init: Python executable found '/usr/bin/python'.
[Tue Apr 29 14:41:48 2014] [error] python_init: Python path being used '/usr/lib/python2.7/:/usr/lib/python2.7/plat-linux2:/usr/lib/python2.7/lib-tk:/usr/lib/python2.7/lib-old:/usr/lib/python2.7/lib-dynload'.
[Tue Apr 29 14:41:48 2014] [notice] mod_python: Creating 8 session mutexes based on 150 max processes and 0 max threads.
[Tue Apr 29 14:41:48 2014] [notice] mod_python: using mutex_directory /tmp
[Tue Apr 29 14:41:48 2014] [warn] RSA server certificate is a CA certificate (BasicConstraints: CA == TRUE !?)
[Tue Apr 29 14:41:48 2014] [warn] mod_wsgi: Compiled for Python/2.7.2+.
[Tue Apr 29 14:41:48 2014] [warn] mod_wsgi: Runtime using Python/2.7.3.
[Tue Apr 29 14:41:48 2014] [notice] Apache/2.2.22 (Debian) mod_auth_pgsql/2.0.3 mod_fcgid/2.3.6 mod_python/3.3.1 Python/2.7.3 mod_ruby/1.2.6 Ruby/1.8.7(2012-02-08) mod_ssl/2.2.22 OpenSSL/1.0.1e mod_wsgi/3.3 mod_perl/2.0.7 Perl/v5.14.2 configured -- resuming normal operations
[Tue Apr 29 14:41:56 2014] [error] [client 41.190.133.6] mod_wsgi (pid=23399): Target WSGI script '/usr/share/apache2/iredadmin/iredadmin.py' cannot be loaded as Python module.
[Tue Apr 29 14:41:56 2014] [error] [client 41.190.133.6] mod_wsgi (pid=23399): Exception occurred processing WSGI script '/usr/share/apache2/iredadmin/iredadmin.py'.
[Tue Apr 29 14:41:56 2014] [error] [client 41.190.133.6] Traceback (most recent call last):
[Tue Apr 29 14:41:56 2014] [error] [client 41.190.133.6]   File "/usr/share/apache2/iredadmin/iredadmin.py", line 10, in <module>
[Tue Apr 29 14:41:56 2014] [error] [client 41.190.133.6]     from libs import iredbase
[Tue Apr 29 14:41:56 2014] [error] [client 41.190.133.6]   File "/usr/share/apache2/iredadmin/libs/iredbase.py", line 18, in <module>
[Tue Apr 29 14:41:56 2014] [error] [client 41.190.133.6]     import iredutils
[Tue Apr 29 14:41:56 2014] [error] [client 41.190.133.6]   File "/usr/share/apache2/iredadmin/libs/iredutils.py", line 13, in <module>
[Tue Apr 29 14:41:56 2014] [error] [client 41.190.133.6]     from iredadmin.libs import settings
[Tue Apr 29 14:41:56 2014] [error] [client 41.190.133.6]   File "/usr/share/apache2/iredadmin/iredadmin.py", line 10, in <module>
[Tue Apr 29 14:41:56 2014] [error] [client 41.190.133.6]     from libs import iredbase
[Tue Apr 29 14:41:56 2014] [error] [client 41.190.133.6] ImportError: cannot import name iredbase

============
listing of my iredmail directory:

root@v128:/usr/share/apache2/iredadmin# ls -la .
total 100
dr-xr-xr-x  9 iredadmin iredadmin  4096 Apr 29 14:31 .
drwxr-xr-x  8 root      root       4096 Apr 29 13:43 ..
-rw-r--r--  1 iredadmin iredadmin   533 Apr 29 13:12 1
-r-xr-xr-x  1 iredadmin iredadmin    49 Oct 14  2013 AUTHORS
-r-xr-xr-x  1 iredadmin iredadmin  3958 Oct 14  2013 ChangeLog
dr-xr-xr-x  6 iredadmin iredadmin  4096 Apr 29 13:41 controllers
dr-xr-xr-x  3 iredadmin iredadmin  4096 Apr 29 08:09 docs
dr-xr-xr-x 18 iredadmin iredadmin  4096 Apr 29 08:09 i18n
-rw-r--r--  1 iredadmin iredadmin     0 Apr 29 12:55 __init__.py
-r-xr-xr-x  1 iredadmin iredadmin   403 Apr 29 14:25 iredadmin.py
-r--r--r--  1 root      root        480 Apr 29 13:28 iredadmin.pyc
dr-xr-xr-x  6 iredadmin iredadmin  4096 Apr 29 14:31 libs
-r-xr-xr-x  1 iredadmin iredadmin 18092 Oct 14  2013 LICENSE
-r-xr-xr-x  1 iredadmin iredadmin   439 Oct 14  2013 README
-r--------  1 iredadmin iredadmin  3926 Apr 29 08:12 settings.py
-r-xr-xr-x  1 iredadmin iredadmin  4468 Oct 14  2013 settings.py.ldap.sample
-r-xr-xr-x  1 iredadmin iredadmin  3831 Oct 14  2013 settings.py.mysql.sample
-r-xr-xr-x  1 iredadmin iredadmin  3814 Oct 14  2013 settings.py.pgsql.sample
dr-xr-xr-x  4 iredadmin iredadmin  4096 Apr 29 08:09 static
dr-xr-xr-x  3 iredadmin iredadmin  4096 Apr 29 08:09 templates
dr-xr-xr-x  2 iredadmin iredadmin  4096 Oct 14  2013 tools

iredadmin/libs:

root@v128:/usr/share/apache2/iredadmin# ls -la libs/
total 84
dr-xr-xr-x 6 iredadmin iredadmin  4096 Apr 29 14:45 .
dr-xr-xr-x 9 iredadmin iredadmin  4096 Apr 29 14:31 ..
-r-xr-xr-x 1 iredadmin iredadmin  8719 Oct 14  2013 default_settings.py
-rw-r--r-- 1 root      root          0 Apr 29 14:25 __init__.py
-r-xr-xr-x 1 iredadmin iredadmin   159 Oct 14  2013 __init__.py.bak
-r-xr-xr-x 1 iredadmin iredadmin  6405 Oct 14  2013 iredbase.py
-r-xr-xr-x 1 iredadmin iredadmin  4997 Oct 14  2013 ireddate.py
-r-xr-xr-x 1 iredadmin iredadmin 13824 Apr 29 13:46 iredutils.py
-r-xr-xr-x 1 iredadmin iredadmin  3515 Oct 14  2013 languages.py
dr-xr-xr-x 2 iredadmin iredadmin  4096 Apr 29 08:09 ldaplib
-r-xr-xr-x 1 iredadmin iredadmin  4245 Oct 14  2013 md5crypt.py
dr-xr-xr-x 2 iredadmin iredadmin  4096 Apr 29 08:09 mysql
dr-xr-xr-x 2 iredadmin iredadmin  4096 Apr 29 08:09 panel
dr-xr-xr-x 2 iredadmin iredadmin  4096 Oct 14  2013 pgsql

I've banged my head about, trying everything from modifying the import statements, adding dynamic Python path extension code to the lib/__init__.py (which I had to add too), moving settings to libs, etc all in vain!

@ZhangHuangbin  Please help me! Please!