Dictionary Methods

Main idea

Methods update and query key-value data efficiently.

Tip

Use items() to loop key and value.

Watch out

Overwriting keys silently.

Read this next

Dictionary Methods is used in many real programs. Right now you are in Data Mastery.

Core idea:
Methods update and query key-value data efficiently.

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

Tip:
Use items() to loop key and value.

Watch out for:
Overwriting keys silently.

Your challenge:
Word frequency counter.

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 Dictionary Methods.

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

if __name__ == "__main__":
    main()

Challenge

Word frequency counter.

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 Dictionary Methods
def solve():
    # Write your solution here
    pass

print("Update solve() and run")

Your code

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