please answer this question using Python. Thanks

5. Triangular words The triangular numbers are of the form tn=1/2n(n+1), the first 10 are 1,3,6,10,15,21, 28,36,45,55. Each word can be converted into a word value by adding the numbers corresponding to its letters, using A=1,B=2,,Z=26. Find the number of words with a word value equal to a triangular number. Use the dictionary.txt file (attached) for your universe of words