open file in append mode in python code example
Example 1: python append to file
with open(filename, "a+") as f:
f.write('Hello World')
Example 2: read and write to file python
file = open(“testfile.txt”, “r+”)
with open(filename, "a+") as f:
f.write('Hello World')
file = open(“testfile.txt”, “r+”)