PYTHON PROBLEM 150 · Advanced

Calculate days between dates: Cross a leap day

Let the datetime module handle February 29 correctly.

datetime · date arithmeticdatetimedate arithmetic

PROBLEM OVERVIEW

What this Python exercise asks you to practise

This scenario tests calculate days between dates. It belongs to the Files, Exceptions, and Modules roadmap and uses the datetime · date arithmetic pattern.

Reading and writing text data, handling predictable failures, imports, and safe input boundaries.

COMPLETE WORKSPACE

Learn the plan, trace the logic and run the solution

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SKILL TO CARRY FORWARD

Pattern relevance

This exercise strengthens datetime · date arithmetic. Be ready to explain the input, the rule, the boundary cases, and why the chosen approach is appropriate.