def rainbow_or_age(rainbowage):
    if rainbowage.isalpha(): # checks if the argumment is an alphabet and does the follwing
        Print("String")
    elif rainbowage.isdigit(): # checks if argumment is a digit and does the following
        print("Digit")
    else:
        return False



rainbow_or_age(2) # here i call the fucntion

# here i get the error!
#---------------------------------------------------------------------------
#AttributeError                            Traceback (most recent call last)
#<ipython-input-25-e32b3f32e450> in <module>()
#----> 1 rainbow_or_age(2)

#<ipython-input-19-1659c3081cd9> in rainbow_or_age(rainbow)
#      2 def rainbow_or_age(rainbow):
#      3     rainbowage = rainbow
#----> 4     if rainbowage.isalpha():
#      5         return rainbow_color() , rainbowage
#      6     elif rainbowage.isdigit():

#AttributeError: 'int' object has no attribute 'isalpha'