Python Program to Find All File with .txt Extension Present Inside a Directory

Example 1: Using glob

import glob, os

os.chdir("my_dir")

for file in glob.glob("*.txt"):
    print(file)

Output

c.txt
b.txt
a.txt

Using glob module, you can search for files with certain extensions.

• os.chdir(“my_dir”)
  sets the current working directory to
  /my_dir
  .
• Using a for loop, you can search for files with
  .txt
  extension using
  glob()
  .
• *
  denotes all files with a given extension.

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Example 2: Using os

import os

for file in os.listdir("my_dir"):
    if file.endswith(".txt"):
        print(file)

Output

a.txt
b.txt
c.txt

In this example, we use endswith() method to check the .txt extension.

• Using a for loop, iterate through each file of directory
  /my_dir
  .
• Check if the file has extension
  .txt
  using
  endswith()
  .

---

Using os.walk

import os

for root, dirs, files in os.walk("my_dir"):
    for file in files:
        if file.endswith(".txt"):
            print(file)

Output

c.txt
b.txt
a.txt

This example uses the walk() method of the os module.

• Using a for loop, iterate through each
  files
  of
  my_dir
  .
• Check if the file has extension
  .txt
  using
  endswith()
  .