How Can I Find All .txt Files in a Directory (and Subdirectories) Using Python?

Locating Files with .txt Extension in Python

Identifying files with a specific extension within a directory is a common task in programming. In Python, there are several approaches to accomplish this for .txt files.

Using glob

The glob module offers a straightforward method to find files matching a given pattern. For .txt files, the following code will suffice:

import glob, os
os.chdir("/mydir")
for file in glob.glob("*.txt"):
    print(file)

Utilizing os.listdir

Another option is to use os.listdir to list all files in the directory and filter for those with the desired extension:

import os
for file in os.listdir("/mydir"):
    if file.endswith(".txt"):
        print(os.path.join("/mydir", file))

Employing os.walk for Recursive Traversal

If you need to recursively search through subdirectories, os.walk can be employed:

import os
for root, dirs, files in os.walk("/mydir"):
    for file in files:
        if file.endswith(".txt"):
             print(os.path.join(root, file))

These methods provide efficient ways to locate and manipulate .txt files in a Python application.

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