Using Pandas to Change Values in Column A Based on String Presence in Column B

Removing Rows from One DataFrame Based on Presence in Another Using Pandas Grouping Techniques

Stopping Forward Filling Based on String Changes in a Pandas DataFrame

Merging Pandas Columns: A Comprehensive Guide to Handling Missing Values and Data Manipulation

Repeating Rows in a Pandas DataFrame: A Comprehensive Guide

Handling Duplicated Rows in Pandas DataFrames with Python: A Comprehensive Guide

Vectorizing Information Extraction from a DataFrame: Optimized Techniques for Large Datasets

Handling Infinity Values in Python Pandas: A Deep Dive

Using atexit() to Export Pandas Dataframe to CSV on App Exit: Understanding the Issue with Printing Rows in DataFrame

Here's a refactored version of the code with proper indentation, comments, and a clear structure: