File to analyze: Raw contents, for debugging - don't print this out in your final solution
['By', 'some', 'measures', 'of', 'conventional', 'Washington', 'wisdom.']
Contents after separating out punctuation, for debugging  - don't print this out in your final solution
['By', 'some', 'measures', 'of', 'conventional', 'Washington', 'wisdom', '.']
The valid commands are: stats, vocab, Please enter a command: The number of distinct words is:  7
And the word list is:  ['By', 'Washington', 'conventional', 'measures', 'of', 'some', 'wisdom']