Lines 6 - 7
The global variables we use in this application are a set of operations and their corresponding functions, and a value indicating how many times (three: 0, 1, 2) we allow the user to enter an incorrect answer before we reveal the solution. The function dictionary uses the operator's symbol to index into the dictionary, pulling out the appropriate arithmetic function.
Get Core Python Programming now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
