Menu
walk() never changes the current directory, and assumes that its caller doesn't either.
You can exclude a directory by right-clicking on it and selecting Mark Directory as → Excluded.
listdir() method returns a list of every file and folder in a directory. os. walk() function returns a list of every file in an entire file tree.
Walk function in any operating system is like the os. path. The walk function generates the file names in a directory tree by navigating the tree in both directions, either a top-down or a bottom-up transverse. Every directory in any tree of a system has a base directory at its back. And then it acts as a subdirectory.
Modifying dirs in-place will prune the (subsequent) files and directories visited by os.walk:
# exclude = set(['New folder', 'Windows', 'Desktop'])
for root, dirs, files in os.walk(top, topdown=True):
dirs[:] = [d for d in dirs if d not in exclude]
From help(os.walk):
When topdown is true, the caller can modify the dirnames list in-place (e.g., via 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...
... an alternative form of @unutbu's excellent answer that reads a little more directly, given that the intent is to exclude directories, at the cost of O(n**2) vs O(n) time.
(Making a copy of the dirs list with list(dirs) is required for correct execution)
# exclude = set([...])
for root, dirs, files in os.walk(top, topdown=True):
[dirs.remove(d) for d in list(dirs) if d in exclude]
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With