Day 6: Python Advanced Topics

Nested Loops: Handling complex data structures.
Class Performance Analysis: From loops to comprehensions.
VSCode Debugging: Setup, breakpoints, debugging actions.
Regex Mastery: Letters, digits, special characters, repetitions.
`re.sub` Examples: Basic substitution, pattern replacement.
Regex Operations: `re.search`, `re.findall`, raw strings, advanced patterns.
Name Rearrangement: Cleaning and reordering with `re.sub`.