CODEWITHSUNDEEP
pythonpython-3.xfilefile-ioshutil
Vosco
Vosco

Reputation: 51

Python: Select and move file based on criteria in a directory

I have about 10 minutes of video and just extracted into every frame so I have more than 100,000 of images in my folder and renamed them from 1 to 100,000. Now I want to select 1 of every 30 from 1 to 100,000 images and move them to another folder. For example : 1, 31,61,91,121,151,181 and so on.

This is my code so far:

import os
import shutil

PATH = './Folder1/'
DEST = './Folder2/'

file = 1

for file in os.listdir(PATH):
    file = file + 30
    shutil.copyfile(PATH, DEST)

But it gave me following error:

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-2-b08091703697> in <module>
      9 # Get a list of files in the current working directory
     10 for file in os.listdir(PATH):
---> 11     file = file + 30
     12     shutil.copyfile(PATH, DEST)

TypeError: can only concatenate str (not "int") to str

Thanks in advance for any help!

Upvotes: 0

Views: 200

Answers (3)

Phan Huu Tho
Phan Huu Tho

Reputation: 76

Your error said that you need to convert int to str before adding them together. You can use 

file = file + str(30)

then improve your original code later on.

Or you can use my idea below.

for idx in range(1, 100000, 30):
   shutil.copyfile(PATH + str(idx), DEST)

Upvotes: 2

Snakienn
Snakienn

Reputation: 619

"file" in for file in os.listdir(PATH) is a string, so file = file + 30 is not valid. you should try:

import os
import shutil

PATH = './Folder1/'
DEST = './Folder2/'

filenames = os.listdir(PATH)

for i in range(1, len(filenames), 30):
    shutil.copyfile(PATH + filenames[i], DEST)

Upvotes: 0

Thomas Hayes
Thomas Hayes

Reputation: 102

Try the following code

PATH = '/Folder1/'
DEST = './Folder2/'
l = os.listdir(PATH)
file = 1

for file in l[::30]:
    shutil.copyfile(PATH, DEST)

Upvotes: 0

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