How do i find a word from user input in another variable?

Question

This is my code:

a = ('the', 'cat', 'sat', 'on', 'a', 'mat')
for i,j in enumerate(a):
    data = (i, j)
    print (data) 
word = input('Type a word out of this sentence - \'The cat sat on a mat\' : ')
word = word.lower()
print(word.find(data))

This is my code, and basically, when a user types in a word from the sentence, i want to find the index position and word from data, then print it. Please can you help me to do this very simply, as i am just a beginner. Thanks :) (Sorry if i haven't explained very well)

Answer 1

You are trying the wrong direction.

If you have a string and call find you search for another string in that string:

>>> 'Hello World'.find('World')
6

What you want is the other way around, find a string in a tuple. For that use the index method of the tuple:

>>> ('a', 'b').index('a')
0

This raises a ValueError if the element is not inside the tuple. You could do something like this:

words = ('the', 'cat', 'sat', 'on', 'a', 'mat')
word = input('Type a word')
try:
    print(words.index(word.lower()))
except ValueError:
    print('Word not in words')