Hi guys have a problem with renaming a set of files in separate folder in python. i have a folder structure like
images/p_0/aaa.jpg,bbb.jpg
images/p_1/aaa.jpg,bbb.jpg
images/p_2/aaa.jpg,bbb.jpg
I need to rename these jpg to like
images/p_0/A-1.jpg,B-1.jpg
images/p_1/A-2.jpg,B-2.jpg
images/p_2/A-3.jpg,B-3.jpg
and i am using the os.rename method. I just don't get how to cycle through the folders and find the image and rename it.
Use os.walk and os.rename.
import os
for root, dirs, files in os.walk(top, topdown=False):
for name in files:
#Rename your files and use os.path.join(root, name)
You can use os.listdir() to get all the files in some directory. You might also want to look through the rest of the os module documentation.
for dirname in os.listdir("images"): for filename in os.listdir("images/" + dirname"): do_something()
os.path.join("images", dirname) instead of direct string concatenation.Take a look at os.listdir or os.walk, if you have a nested directory structure.
#!/usr/bin/env python
import os
# list all files
for filename in os.listdir('.'):
print filename # do something with filename ...
def is_image(filename):
""" Tiny filter function. """
return filename.endswith(".jpg") or filename.endswith(".png")
# only consider files, which pass the `is_image` filter
for filename in filter(is_image, os.listdir('.')):
print filename # do something with filename ...
In addition to os.walk(), glob.glob() might be useful.
