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3 cards from this section. Quick, good the night before a test.
What is a global variable? Provide a brief explanation.
Think about the scope of a variable and where it can be accessed.
What are generators used for?
Consider situations where you don't need all items at once.
Which type of variable is suggested to be avoided due to performance drops?
Recall our discussion on variable scope.
True or False: Generators can yield items before they're completely instantiated.
Think about how memory is managed with generators.
You are tasked with writing a Python function that computes the total of all even numbers between 1 and 1,000,000. Compare the performance of a traditional loop using a list to a generator approach. Discuss your findings.
Think about how much memory a full list of even numbers would use.
Analyze a piece of code that uses global variables extensively. Refactor it to minimize global state. Then measure the performance and memory usage before and after the modification.
Check how many times variables are being accessed in the original code.
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