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Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is a global variable? Provide a brief explanation.
π‘ Hint: Think about the scope of a variable and where it can be accessed.
Question 2
Easy
What are generators used for?
π‘ Hint: Consider situations where you don't need all items at once.
Practice 4 more questions and get performance evaluation
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
Which type of variable is suggested to be avoided due to performance drops?
π‘ Hint: Recall our discussion on variable scope.
Question 2
True or False: Generators can yield items before they're completely instantiated.
π‘ Hint: Think about how memory is managed with generators.
Solve 1 more question and get performance evaluation
Push your limits with challenges.
Question 1
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.
π‘ Hint: Think about how much memory a full list of even numbers would use.
Question 2
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.
π‘ Hint: Check how many times variables are being accessed in the original code.
Challenge and get performance evaluation