How to Open a File for Both Reading and Writing in Python
To open a file with the ability to both read and write to it, use the Python
open() function and set the mode to
The open() Function Syntax
open() takes two arguments, the first is the name/location of the file to open and the second is the mode.
Read and Write to File Python Example
To demonstrate using
r+ mode, let's open an existing file and append a new line to it.
Some existing content. Another line of content.
new_line = 'New line to prepend.\n' with open('file.txt', 'r+') as file: content = file.read() file.seek(0) file.write(new_line + content)