pytutorial/glob

glob -- Finding files in a directory

Goal

We want to deal with many files in a directory. What is an easy way to get the filename in a directory?

Questions to David Rotermund

Creating test files

from pathlib import Path

Path("Testfile_001.mat").touch()
Path("Testfile_002.mat").touch()
Path("Testfile_010.mat").touch()
Path("Testfile_003.mat").touch()

Using glob in a for-loop

import glob

for filename in glob.glob("*.mat"):
    print(filename)

Testfile_001.mat
Testfile_002.mat
Testfile_010.mat
Testfile_003.mat

Using glob to create a list

import glob

list = glob.glob("*.mat")
print(list)

['Testfile_001.mat', 'Testfile_002.mat', 'Testfile_010.mat', 'Testfile_003.mat']

Sorting the filenames

import glob

list = sorted(glob.glob("*.mat"))
print(list)