[FIXED] How to import "dat" file including only certain strings in python

Issue

I am trying to import several "dat" files to python spyder.

dat_file_list_images

Here are dat files listed, and there are two types on the list ended with _1 and _2. I wanna import dat files ended with "_1" only.

Is there any way to import them at once with one single loop?

After I import them, I would like to aggregate all to one single matrix.

Solution

import os

files_to_import = [f for f in os.listdir(folder_path)
                  if f.endswith("1")]

Make sure that you know whether the files have a .dat-extension or not - in Windows Explorer, the default setting is to hide file endings, and this will make your code fail if the files have a different ending.

What this code does is called list comprehension - os.listdir() provides all the files in the folder, and you create a list with only the ones that end with "1".

Answered By - Thomas