Python Deck of Cards Program

Write a simple implementation of a card deck that meets the following criteria:

1. Must deal cards out randomly to a user.

2. Must contain a Deck class that will contain a list of card objects.

3. Initially, the deck will contain one instance of each of the 52 possible cards.

4. Your deck should implement a deal() method that chooses a random location from the list and "pops" that card.

5. You should also implement a cardsLeft method that tells how many cards are left in the deck.

Note: you do not have to use camelCase.