CODEWITHSUNDEEP
pythonfilenamesrename
Ravit D
Ravit D

Reputation: 907

Rename several files by some pattern python

I would like to build a python script to do the following

change all occurrences of "bla" to "abd" in the file names.
For instance:

123_bla.dd -> 123_abd.dd
bla.dd -> _abd.dd

How can I do that?

I tried:

for fn in os.listdir("."):
    print fn  # test
    if fnmatch.fnmatch(fn, '*bla*'):
        fn = fn.replace(fn, "abd")
        print fn

Upvotes: 0

Views: 227

Answers (3)

Junuxx
Junuxx

Reputation: 14261

You're just changing the string containing the files' names, not the actual filenames. Try using os.rename()

for fn in os.listdir("."):
    print fn  # test
    if fnmatch.fnmatch(fn, "bla):
        fixed = fn.replace("bla", "abd")
        os.rename(fn, fixed)

Upvotes: 0

anirudh
anirudh

Reputation: 4176

You are just getting the names of the files in strings and then renaming them, you need to rename the files using the os.rename() method.

Upvotes: 0

Jasper
Jasper

Reputation: 3947

You have to use the replace method correctly: https://docs.python.org/2/library/string.html#string.replace

You have to do fn.replace('bla', 'abd'). And then of course do the actual renaming https://docs.python.org/2/library/os.html#os.rename

Upvotes: 2

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