10.12) Challenge 29 (Extra Hard) - File Indexer
Write a program which creates an index from the text file: TheTyger_WilliamBlake.txt
The index records the occurrences of each word in the text and the line(s) at which the words occur.
Write the index in a text file with each word on one line followed by the list of lines. Words should be in alphabetical order.
For example:
a: 4 9 the: 6 9 12
Hint: The punctuation can get in the way.
Solution: challenge_file_indexing.py