Working with File Paths (os, pathlib)

import os
from pathlib import Path

# os.path (traditional)
print(os.getcwd())              # current directory
print(os.path.exists("."))      # True
print(os.path.join("folder", "file.txt"))

# pathlib (modern, recommended!)
p = Path(".")
print(f"Current: {p.resolve()}")

# Path operations
readme = Path("README.md")
print(f"Name: {readme.name}")
print(f"Stem: {readme.stem}")      # README
print(f"Suffix: {readme.suffix}")  # .md
print(f"Parent: {readme.parent}")  # .

# Building paths
data_dir = Path("data")
csv_file = data_dir / "users.csv"  # Path joining with /
print(f"Path: {csv_file}")

# Listing directory contents
current = Path(".")
print("\nFiles in current dir:")
for item in sorted(current.iterdir()):
    icon = "📁" if item.is_dir() else "📄"
    print(f"  {icon} {item.name}")

# glob — find files by pattern
# list(Path(".").glob("*.py"))      # all .py files
# list(Path(".").rglob("*.txt"))    # recursive search