Python Programming | Files Part - 2 | Aktu

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Published on August 1, 2023 2:30:07 PM ● Video Link: https://www.youtube.com/watch?v=jQMrNq2g5IY

Duration: 13:21

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✳️ About the video
========================
In this video we will learn about three (3) things knowns as:
1. writing files in python
2. Reading Files in python
3. Python file method

Writing to Files in Python:
Python provides built-in functions for writing data to files.
The open() function is used to
open a file and returns a file object. This function requires two parameters,
the file's name and the mode in which the file will be opened (e.g., 'w' for
write, 'a' for append). When in write mode, if the file does not exist, it will
be created. If it does exist, it will be overwritten.

Writing to Files in Python:
Python provides built-in functions for writing data to files.
The open() function is used to
open a file and returns a file object. This function requires two parameters,
the file's name and the mode in which the file will be opened (e.g., 'w' for
write, 'a' for append). When in write mode, if the file does not exist, it will
be created. If it does exist, it will be overwritten.

Python File Methods:
Python offers a variety of methods for handling files:
open(filename, mode): Opens a file in a specific mode ('r', 'w', 'a', 'b', '+' variations).
file.read(size): Reads at most size bytes from the file. Without the size parameter, it reads the entire file.
file.readline(): Reads the next line of the file.
file.readlines(): Returns a list of all lines in a file.
file.write(string): Writes a string to the file.
file.writelines(list): Writes a list of strings to the file.
file.seek(offset): Changes the file position to the given offset.
file.tell(): Returns the current file position.
file.close(): Closes the file object, which is necessary to free up system resources.

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