How do I clear a .txt file with the open() function?

Question

I have a simple program which opens a file and replaces text. However, I want the program to clear the file, then save what needs to be saved.

How do I do that? Or is there a simpler way to do so?

Answer 1

When you open a file in 'w' mode, it's content would be erased.

from doc - 'w' for only writing (an existing file with the same name will be erased)

Just open file as

open(file, 'w')

Answer 2

when opening in write mode, you clear the text in the file.

with open() as f:
    f.write("")

that'll fix it for you!