#python

Convert complex SQL (CTEs, window functions, subqueries) to production-grade PySpark. Discuss when to use spark.sql() vs. DataFrame API, and the implications for testability, partitioning, and execution predictability.

Write a Python script to find the count of each word in a text file using Spark.

Write a Python function to check if a string is a palindrome.

Match countries in a pairwise format

Reverse operation for splitting values back to original format

Solve Minimum Remove to Make Valid Parentheses.

Create a Python program to demonstrate the use of set operations (union, intersection).

Replace words and perform string operations in Python (replace, vowel removal, word count, pattern check).