tkFileDialog.askdirectory root directory ?

[Russell E. Owen]

In article <c206mk$lmi$1 at atlantis.news.tpi.pl>,
 "Ringwraith" <atmo at go2.pl> wrote:

>I have the following problem. I use the tkFileDialog.askdirectory dialog to
>allow users of my application to pick some subfolder from 'C:/my_app'
>directory. I use initialdir='C:/my_app' option to set 'C:/my_app' as initial
>directory. But I want my initial directory to be also a root directory, so
>the user cannot pick any directory outside 'C:/my_app'  folder. I have no
>idea how to do it using standard  tkFileDialog.askdirectory. Is that
>possible?

Some possible solutions:
- Write your own version that does this, e.g. via bindings that detect 
when the user tries to change directory and screens the requested 
change. Unfortunately, from a quick look at tkFileDialog, I did not see 
any easy way to adapt the existing code; unless I missed something you 
may have to pretty much code from scratch.
- Allow the user to select anything, but then test it and reject it if 
it doesn't meet your requirements. This is trivial to code, but a pain 
for the user.
- See if you can redesign your code to eliminate the requirement.

-- Russell