How to delete data from file in Python code example

Example 1: python delete file

import os
import shutil

if os.path.exists("demofile.txt"):
  os.remove("demofile.txt") # one file at a time

os.rmdir("test_directory") # removes empty directory
shutil.rmtree("test_directory") # removes not empty directory and its content

Example 2: how to delete everything on a file python

f = open('file.txt', 'r+')
f.truncate(0) # need '0' when using r+

Example 3: python delete contents of file

open('file.txt', 'w').close()

Example 4: how to delete file in python

import os
os.remove("ChangedFile.csv")
print("File Removed!")