Entry

Is there a recursive glob?

Aug 25th, 2009 16:38
Joe Bloggs, unknown unknown, Fredrik Lundh

No, but you can easily roll your own using os.path.walk
and the fnmatch module.

Or, you can use this iterator class, adapted from an example
in the eff-bot library guide (see below):

#
# adapted from os-path-walk-example-3.py

import os
import fnmatch

class GlobDirectoryWalker:
    # a forward iterator that traverses a directory tree

    def __init__(self, directory, pattern="*"):
        self.stack = [directory]
        self.pattern = pattern
        self.files = []
        self.index = 0

    def __getitem__(self, index):
        while 1:
            try:
                file = self.files[self.index]
                self.index = self.index + 1
            except IndexError:
                # pop next directory from stack
                self.directory = self.stack.pop()
                self.files = os.listdir(self.directory)
                self.index = 0
            else:
                # got a filename
                fullname = os.path.join(self.directory, file)
                if os.path.isdir(fullname) and not 
os.path.islink(fullname):
                    self.stack.append(fullname)
                if fnmatch.fnmatch(file, self.pattern):
                    return fullname

for file in GlobDirectoryWalker(".", "*.py"):
    print file

</F>

<!-- (the eff-bot guide to) the standard python library:
http://www.pythonware.com/people/fredrik/librarybook.htm
-->

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