example

count.py

def count_words(text):
    num = 0;
    for ch in text:
       if(ch == " " or ch=="\n"):
           num+=1

    return num

str1 = "this is some text "
str2 = "this is some more text "
n1 = count_words(str1)
n2 = count_words(str2)
print(str1)         # this is some text
print(n1)           # 4
print(str2)         # this is some more text
print(n2)           # 5