Revised:
root
+ Dir1
+ Dir2
+ Dir3
+ NotEmptyDir
File1
File2
Result:
Root
+ NotEmptyDir
File1
File2
---
import os
import shutil
def isDirEmpty( path ):
if not os.path.isdir( path ):
return False
contents = os.listdir( path )
if len(contents) == 0:
return True
return False
def RecurseTree( path ):
print "RecurseTree( %s )" % (path,)
if not os.path.isdir( path ):
print "RecurseTree( %s ) - NOT A DIRECTORY" % (path,)
return 0
contents = os.listdir( path )
for item in contents:
investigate = "%s\\%s" % (path, item)
if os.path.isdir(investigate):
RecurseTree( investigate )
contents = os.listdir( path )
if len(contents) == 0:
print "Deleting Empty Dir '%s'" % (path,)
shutil.rmtree(path)
if __name__ == '__main__':
RecurseTree( r"c:\temp" )
On 30 Mar, 16:14, CinnamonDonkey <cinnamondon...@googlemail.com>
wrote:
> My understanding was that rmtree removes a whole tree not just the
> empty directories?
>
> eg.
>
> root
> - file1
> - file2
> - dir1
> - dir2
> - file3
> - dir3
>
> I would expect; dir1 and dir3 to be deleted and nothing else touched.
>
> My attempt came up with:
>
> import os
> import shutil
>
> def isDirEmpty( path ):
> if not os.path.isdir( path ):
> return False
>
> contents = os.listdir( path )
>
> if len(contents) == 0:
> return True
>
> return False
>
> def RecurseTree( path ):
> if not os.path.isdir( path ):
> return False
>
> contents = os.listdir( path )
>
> if len(contents) == 0:
> print "Deleting Empty Dir '%s'" % (path,)
> #shutil.rmtree(path)
>
> else:
> for item in contents:
> investigate = "%s\\%s" % (path, item)
> if os.path.isdir(investigate):
> RecurseTree( investigate )
>
> if __name__ == '__main__':
> RecurseTree( r"c:\temp" )
>
> But I'm not sure what the max recursion depth is in python? Plus I
> think this could be more efficient.
>
> On 30 Mar, 15:59, Tim Golden <m...@timgolden.me.uk> wrote:
>
> > CinnamonDonkey wrote:
> > > Hi All,
>
> > > I've been scratching my head all afternoon trying to work out the best/
> > > quickest way is to delete empty directories within a tree (Windows).
>
> > > I've looked at os.walk() but it seems to traverse the directory tree
> > > in the wrong order (is it possible to reverse the order?)
>
> > > It seems the only way is to manually walk the tree myself recursively
> > > and then back up deleteing a directory if it is found to be empty.
>
> > In general, the place to look for these things in the
> > stdlib is usually shutil. (Slightly awkward that
> > "shell" in Windows means everything that happens on
> > the desktop, while "shell" in Unix means everything
> > *except* what happens on the desktop! This is the
> > Unix meaning.)
>
> > And sure enough...
>
> > """
> > rmtree( path[, ignore_errors[, onerror]])
>
> > Delete an entire directory tree (path must point to a directory). If
> > ignore_errors is true, errors resulting from failed removals will be
> > ignored; if false or omitted, such errors are handled by calling a handler
> > specified by onerror or, if that is omitted, they raise an exception.
> > If onerror is provided, it must be a callable that accepts three
> > parameters: function, path, and excinfo. The first parameter, function, is
> > the function which raised the exception; it will be os.listdir(),
> > os.remove() or os.rmdir(). The second parameter, path, will be the path
> > name passed to function. The third parameter, excinfo, will be the
> > exception information return by sys.exc_info(). Exceptions raised by
> > onerror will not be caught.
>
> > """
>
> > TJG
>
>
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