try/except

Main idea

Exceptions jump control to except blocks.

Tip

Catch specific exceptions.

Watch out

Using bare except.

Read this next

try/except is used in many real programs. Right now you are in Logic.

Core idea:
Exceptions jump control to except blocks.

Read the example code on this page. Then write your own short version.

Tip:
Catch specific exceptions.

Watch out for:
Using bare except.

Your challenge:
Safe division tool with ZeroDivisionError handling.

Use the editor in the challenge lab. When your output looks correct and there is no error, press the green button to unlock the next topic.

Example code

Copy this example if it helps. Change it so it matches try/except.

# Topic: try/except
def main():
    sample = "edit me"
    # TODO: apply try/except concept here
    result = sample
    print("Result:", result)

if __name__ == "__main__":
    main()

Challenge

Safe division tool with ZeroDivisionError handling.

Before you can finish: your output should include at least 16 characters; at least 1 non-empty line(s); no crash traceback—fix errors until the program runs cleanly.

Use Run. Read the output. Change your code until the task is done.

Starter reference

# Challenge starter for try/except
def solve():
    # Write your solution here
    pass

print("Update solve() and run")

Your code

The first Run may load Python in your browser (one-time). Later runs are faster.

Navigation

Back to roadmap Previous topic Next topic