Execute error when scripts contains func <exec>, plz help.

[crasyjoel]

I only use command without any addititonal parameters to obfuscate scripts which contains func like , it runs with error:
Traceback (most recent call last):
File "", line 187, in create_ITAC_Task
File "", line 85, in init
File "", line 37, in init
File "", line 1, in
NameError: name 'k' is not defined
Currently, i just leave it and the whole projects runs well. Plz help.