How Can I Efficiently Determine a File\'s Size in Python?

Determining File Size in Python

Python provides various ways to obtain file sizes, which is essential for various purposes such as storage management or performance optimization. This article will explore how to efficiently check file size using Python's built-in functions.

os.path.getsize

The os.path.getsize function is one of the simplest and most versatile methods for retrieving file size in Python. It accepts a single argument, which is the path to the file, and returns the file's size in bytes.

import os

file_path = "/path/to/file.txt"
file_size = os.path.getsize(file_path)

The resulting file_size variable will contain the file's size in bytes.

pathlib.Path.stat

For more comprehensive file information, including its size, you can use the pathlib.Path.stat method. It returns a stat object, which contains various attributes about the file.

from pathlib import Path

file_path = "/path/to/file.png"
file_obj = Path(file_path)
file_size = file_obj.stat().st_size

Again, the file_size variable will contain the file's size in bytes.

Summary

Whether you prefer the simplicity of os.path.getsize or the additional attributes provided by pathlib.Path.stat, these methods offer reliable ways to determine file size in Python. Remember, file sizes are reported in bytes, so you may need to convert them to more human-readable units like kilobytes or megabytes for certain applications.

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