Reading Time Formatter in Python

Table of Contents

1. Challenge

   Introduction

   This lab guides you through a compact Python command-line application that converts a total number of reading minutes into two useful representations: decimal hours and a whole-hours-plus-minutes breakdown. That makes this step the right starting point, because before you write code, you need to understand the project layout and the data flow from user input to printed output. info> This lab experience was developed by the Pluralsight team using an internally developed AI tool. All sections were verified by human experts for accuracy prior to publications. However, content may still contain errors or inaccuracies, and we recommend independent verification.
   
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2. Challenge

   Collect input and convert it into numeric data

   This step focuses on the earliest stage of most command-line workflows: getting data into the program and making it usable. That makes it the logical next phase, because every later calculation depends on having an input value and converting it into the right type.

3. Challenge

   Break the time into complete hours and remaining minutes

   This step extends the calculation layer beyond decimal output and into whole-unit breakdowns. It is the natural next phase because once you already have the total minute count as an integer, you can derive more detailed representations from the same source value.

4. Challenge

   Format the report and wire the application entry point

   This step moves from isolated helpers to the assembled application. That transition matters because real software is not just a collection of functions; it also needs an orchestration layer that decides when each function runs and how their results reach the user.

5. Challenge

   Add validation and graceful error handling

   This final hands-on step improves reliability and user experience. That makes it the right closing phase, because the program already works for valid input and now needs to handle common mistakes in a controlled way. Run the application to verify the complete reading time workflow.

   1. In the Terminal tab, run the application:

      python3 -m runtime_report.app
      

   2. When prompted, enter a valid number of reading minutes, such as 150.

   3. Confirm that the application displays a reading time report with both the decimal-hour value and the hours-and-minutes breakdown.

   4. Run the application again and enter a blank value or a negative number to confirm that a friendly error message is displayed instead of a Python traceback.

   Congratulations on completing this lab!