here you go!

#!/usr/bin/python2
import sys
string = sys.argv[1]

def manipulateString(string):
    numberOfSpaces = string.count(' ')
    numberOfLowerC = sum(1 for lower in string if string.islower())
    print("You entered: " + str(string))
    print("There are " + str(numberOfSpaces) + " spaces in that string.")
    print("Also, " + str(numberOfLowerC) + " lowercase characters.")

manipulateString(string)