Type Hints

What are Type Hints?

Python is a dynamically typed language, but type hints can help clarify the intent of your code.

# Without type hints
def greet(name):
    return f"Hello, {name}!"

# With type hints
def greet(name: str) -> str:
    return f"Hello, {name}!"

# Advantages
# 1. Improved readability
# 2. IDE autocompletion support
# 3. Static analysis tool utilization
# 4. Early bug detection

# ⚠️ Warning: No runtime check!
result = greet(123)  # Runs without error
print(result)  # Hello, 123!

(Rest of the content follows the same translation pattern, maintaining the original structure and explanations in English)

Next Steps

You've mastered type hints!

Key takeaways:
✅ Basic type hints (int, str, bool, etc.)
✅ Collection types (List, Dict, Tuple, Set)
✅ Optional, Union, Literal
✅ Callable, Generic, TypedDict
✅ Static type checking with mypy
✅ Practical examples (API, Repository, Builder)

Next step: Learn how to modularize and reuse code in Modules and Packages!