os.walk exclude .svn folders

Question

I got a script that I want to use to change a repeated string throughout a project folder structure. Once changed then I can check this into SVN. However when I run my script it

Answer 1

Try this:

for root, subFolders, files in os.walk(rootdir):
    if '.svn' in subFolders:
      subFolders.remove('.svn')

And then continue processing.

Answer 2

Err... what?

When topdown is True, the caller can modify the dirnames list in-place (perhaps using del or slice assignment), and walk() will only recurse into the subdirectories whose names remain in dirnames; this can be used to prune the search, impose a specific order of visiting, or even to inform walk() about directories the caller creates or renames before it resumes walk() again.

for root, subFolders, files in os.walk(rootdir):
  try:
    subFolders.remove('.svn')
  except ValueError:
    pass
  dosomestuff()