how to append string to text file in python code example

Example 1: Write a Python program to append text to a file and display the text.

def Appendtext(fname):
	with open(fname,'a+') as f:
		f.write('appending line 1, ')
		f.write('appending line 2. ')
	f.close()
# y=open('file1.txt')
# print(y.read())
Appendtext('file1.txt')

x= open('file1.txt')
print(x.read())

Example 2: python create file

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

Example 3: read and write to file python

file = open(“testfile.txt”, “r+”)