Greeting Formatter Class

A easy Python interview practice problem on DataDriven. Write and execute real python code with instant grading.

Domain

Python

Difficulty

easy

Seniority

L3

Problem

Implement MessageFormatter(text) with a method sort_by_case() that returns text rearranged so all lowercase letters come first (in their original relative order), followed by all uppercase letters (in their original relative order). Non-letter characters come at the end, in their original relative order. Also implement sort_by_case(text) as a free function that returns MessageFormatter(text).sort_by_case().

Summary

First impressions are formatted carefully.

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