Welcome to the lesson on File Handling
Python File Open
File handling is an important part of any web application.
Python has several functions for creating, reading, updating, and deleting files.
File Handling
The key function for working with files in Python is the open() function.
The open() function takes two parameters: filename, and mode.
There are four different methods (modes) for opening a file:
"r" - Read - Default value. Opens a file for reading, error if the file does not exist
"a" - Append - Opens a file for appending, creates the file if it does not exist
"w" - Write - Opens a file for writing, creates the file if it does not exist
"x" - Create - Creates the specified file, returns an error if the file exists
Syntax
To open a file for reading it is enough to specify the name of the file:
file = open("StudyPython.txt")
The code above is the same as this:
file = open("StudyPython.txt", "rt")
End of Python File Handling
You have learned File Handling in simple terms. Let's proceed on to Next Topic.