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Discover the power of Python’s `glob` module for finding files with ease.

# Python Glob Usage

## Introduction
In Python, the `glob` module is used to retrieve files/pathnames matching a specified pattern. This can be very useful when you want to work with multiple files that have a common naming convention. In this guide, we will explore how to use the `glob` module effectively in Python.

## Basic Usage
To use the `glob` module, you first need to import it in your Python script. This can be done using the following line of code:
“`python
import glob
“`

## Finding Files
The `glob` module provides a function called `glob.glob()` which takes a pattern as an argument and returns a list of all file paths that match the pattern. The pattern can include wildcards such as `*` to match any sequence of characters or `?` to match any single character. Here is an example of how to use `glob.glob()` to find all `.txt` files in a directory:
“`python
txt_files = glob.glob(‘path/to/directory/*.txt’)
print(txt_files)
“`

## Recursive Search
If you want to search for files in subdirectories as well, you can use the `**` wildcard along with the `recursive=True` argument in the `glob.glob()` function. This will perform a recursive search starting from the specified directory. Here is an example:
“`python
all_files = glob.glob(‘path/to/directory/**/*.txt’, recursive=True)
print(all_files)
“`

## Other Useful Functions
In addition to `glob.glob()`, the `glob` module also provides other useful functions such as `glob.iglob()`, which returns an iterator instead of a list. This can be more memory-efficient when working with a large number of files. Here is an example:
“`python
txt_files_iterator = glob.iglob(‘path/to/directory/*.txt’)
for file in txt_files_iterator:
print(file)
“`

## Conclusion
The `glob` module in Python is a powerful tool for working with file paths that match a specific pattern. By using wildcards and other features provided by the module, you can easily retrieve files that meet your criteria. Experiment with different patterns and functions to see how you can leverage the `glob` module in your own projects.