wildcards for file dialogs

[Christian Meesters]

Hi,

Just two question on file dialogs:
- Say I'd like to display files matching *.py and *.pyc at the same time in a 
file dialog. Can a wildcard be modified to accomplish that?
- And (a similar question): How can a file dialog be enforced to ignore the 
case of a file suffix? (e.g. the wildcard should match *.py and *.PY at the 
same time) I am transferring files from a windows machine to my linux 
platform on a regular basis and the files usually ending in upper case are 
changed to lower case if manipulated - and this matters on linux, of course.

TIA
Christian