Important Python File Management Functions

 Important Python File Management Functions

Method	Use	Simple Example
open()	Opens a file for reading, writing, or other operations.	file = open("data.txt", "r")
read()	Reads the complete content of a file.	data = file.read()
readline()	Reads one line from a file at a time.	line = file.readline()
readlines()	Reads all lines as a list	lines = file.readlines()
write()	Writes a string or text to a file.	file.write("Hello")
writelines()	Writes multiple lines	file.writelines(["A\n", "B\n"])
close()	Closes a file	file.close()
seek()	Moves the file pointer to a specified position.	file.seek(0)
tell()	Returns the current position of the file pointer.	pos = file.tell()
readable()	Checks whether the file is open for reading.	file.readable()
writable()	Checks whether the file can be written	file.writable()
truncate()	Removes part of the file content after a specified position.	file.truncate(10)

Important for beginners:

For basic file management, students should focus mainly on:

open() → read() / write() → close()

and preferably use:

with open("data.txt", "r") as file:

    data = file.read()

    print(data)

The methods seek(), tell(), readable(), writable(), and seekable() are useful when you start working with file pointers and more advanced file operations for your project work.

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