OOP Exercise: Combination Locks

Combination Locks.ipynb

Don't forget to implement a repr.

Suggestions for further improvement:

1. As Skylar suggested, hash the combination to prevent peeking
2. Ensure the user can only enter the code one digit at a time.
3. Implement checking to see if the digit entered is allowable (i.e, is a number and within the correct range). Determine how to deal with incorrect input (i.e, raise an error, use a default or coerced value, reject the input without an error, display an error message, etc)
4. Expand the number of allowable digits from 0-9 to 0-n.
5. Make it send you a text message if someone successfully opens your lock
6. Have it send a text message if someone attempts to open the lock X number of times and ask you to enable additional attempts.

Here's one possible solution:

https://github.com/ljbelenky/combination_lock