Description of problem:
Fedora 17 Alpha install with updates. Trying to launch liveusb-creator
it fails with the following output:

[jes@mahomaho ~]$ liveusb-creator
Traceback (most recent call last):
  File "/sbin/liveusb-creator", line 89, in <module>
    main()
  File "/sbin/liveusb-creator", line 82, in main
    from liveusb.gui import LiveUSBApp
  File "/usr/lib/python2.7/site-packages/liveusb/__init__.py", line 29, in <module>
    os.environ['LANG'] = lang
  File "/usr/lib64/python2.7/os.py", line 471, in __setitem__
    putenv(key, item)
TypeError: must be string, not None
[jes@mahomaho ~]$ echo $LANG
en_US.UTF-8
[jes@mahomaho ~]$ 

I tried un-setting $LANG, but it results in the same error.

Version-Release number of selected component (if applicable):
[root@mahomaho ~]# rpm -q liveusb-creator 
liveusb-creator-3.11.6-2.fc17.noarch

How reproducible:
Every time

Steps to Reproduce:
1. Install F17 Alpha
2. yum install liveusb-creator
3. run liveusb-creator
  
Actual results:
Fails to start with illogical python backtrace

Expected results:


Additional info: