#Python program to accept a filename from the user and print the extension of that

# get the filename with extension from the user and store it in variable filename

filename = input("enter complete filename with extension :")

# split filename based on .(dot) and store in variable sep

sep = filename.split(".")

#get the last value from the sep list i.e. the file extension

extn = sep[-1]

#print the extension

print("extension of the filename %s is %s"%(filename,extn))

enter complete filename with extension :output.py

extension of the filename output.py is py



enter complete filename with extension :budget.csv

extension of the filename budget.csv is csv