python open create file code example

Example 1: python append to file

with open(filename, "a+") as f:
  f.write('Hello World')

Example 2: create text in python if not exists

#Updated dec 2020
#It will creates Text file in path directory using name of file.txt
import os

path = 'some/path/to/file.txt'
if not os.path.exists(path):
    with open(path, 'w') as f:
    	f.write('Hello, world')
#==== OR ===
mode = 'a' if os.path.exists(path) else 'w'
with open(path, mode) as f:
    f.write('Hello, world!\n')

Example 3: python open and read file with

with open('pagehead.section.htm','r') as f:
    output = f.read()

Example 4: read and write to file python

file = open(“testfile.txt”, “r+”)

Example 5: python create file

f= open("guru99.txt","w+")