Modules and Packages

Main idea

Modules split code into reusable files.

Tip

Organize by feature responsibility.

Watch out

Circular imports.

Read this next

Modules and Packages is used in many real programs. Right now you are in Advanced Engineering.

Core idea:
Modules split code into reusable files.

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

Tip:
Organize by feature responsibility.

Watch out for:
Circular imports.

Your challenge:
Split utility code into separate module and import it.

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 Modules and Packages.

# Topic: Modules and Packages
def main():
    sample = "edit me"
    # TODO: apply Modules and Packages concept here
    result = sample
    print("Result:", result)

if __name__ == "__main__":
    main()

Challenge

Split utility code into separate module and import it.

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 Modules and Packages
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.

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