Suffix.py

file_obj = open("t1.text",'a')
def suffix(letter):
    for i in range(len(letter)):
        print(letter)
        file_obj.write("Suffix: " + letter + '\n')
        letter = letter[1:]
    print('epsilone')
    file_obj.write("epsilone")

def prefix(letter):
     for i in range(len(letter)):
         print(letter)
         file_obj.write("prefix: " + letter + '\n')
         letter = letter[:len(letter)-1]
     print('epsilone')
     file_obj.write("epsilone")

s = "banana"
print("suffix is :")
suffix(s)
file_obj.write("------------------------------ \n")
print("prefix is :")
prefix(s)