Top 10 Common Python File Operation Methods

Python frequently requires batch file processing; this article lists the ten most commonly used file operation methods in Python and provides ready‑to‑use examples.

Creating and opening files is done with the open() function. Its syntax is file = open(filename[, mode[, buffering]]) where filename is the path, mode defaults to 'r' , and buffering controls the buffer.

Parameters: file – the file object; filename – name of the file (quoted); mode – optional mode string (e.g., 'r' , 'w' , 'a' ); buffering – optional integer (0, 1, or size).

Opening a non‑existent file in read mode raises an exception; using write or append modes ( 'w' , 'w+' , 'a' , 'a+' ) creates the file automatically.

Closing files with file.close() flushes buffers before releasing the resource.

Using a with statement ensures the file is closed automatically: with open('test.txt', 'w') as file: followed by the desired operations.

Writing data uses file.write(str) where the file must be opened in a writable mode.

Reading data can be done with file.read([size]) , file.readline() , or file.readlines() . The seek() method moves the file pointer to a specified offset.

Copying, moving, and renaming files rely on the shutil module ( shutil.copyfile(src, dst) , shutil.move(src, dst) ) and the os module ( os.rename(src, dst) ).

Deleting files uses os.remove(path) , and basic file metadata (size, timestamps) can be obtained with os.stat(path) .

The article concludes that these ten built‑in methods cover the most frequent file‑handling tasks in Python.