Appending to a file.py

# Python program to illustrate
# Append vs write mode
file1 = open("myfile1.txt","w")
L = ["This is Delhi \n","This is Paris \n","This is London \n"]
file1.writelines(L)
file1.close()

# Append-adds at last
file1 = open("myfile1.txt","a") #append mode
file1.write("Today \n")
file1.close()

file1 = open("myfile1.txt","r")
print("Output of Readlines after appending")
print(file1.readlines())
print()
file1.close()

# Write-Overwrites
file1 = open("myfile1.txt","w") #write mode
file1.write("Tomorrow \n")
file1.close()

file1 = open("myfile1.txt","r")
print("Output of Readlines after writing")
print(file1.readlines())
print()
file1.close()