Скачать или смотреть How to Use f-Strings (Formatted Strings) in Python (2025)

🔤 How to Use f-Strings in Python | Mastering Formatted Strings with Examples

Welcome to this beginner-friendly tutorial on using f-strings in Python! In this video, we’ll explore one of the most powerful and modern ways to format strings in Python. f-strings (formatted string literals) were introduced in Python 3.6 and provide a cleaner, more readable, and faster way to embed expressions inside string literals.

Whether you're displaying variables, formatting numbers, or creating dynamic messages, f-strings make string handling more intuitive and efficient.

💡 What Are f-Strings in Python?

f-strings are a shorthand syntax for formatting strings in Python using curly braces {} to embed expressions directly within string literals prefixed with the letter f or F.

🔧 What You’ll Learn:

✅ How to use basic f-string syntax
✅ Embedding variables directly into strings
✅ Formatting numbers, dates, and floating-point values
✅ Using expressions inside f-strings (e.g., calculations, method calls)
✅ Aligning text and setting width/precision for values
✅ Comparing f-strings with older formatting methods (% and str.format())
✅ Best practices for readability and performance

📌 Example Code Snippets:

```python
name = "Alice"
age = 30
print(f"My name is {name} and I am {age} years old.")

Formatting floats
pi = 3.14159265
print(f"Pi rounded to 2 decimal places: {pi:.2f}")

Using expressions
print(f"In 5 years, {name} will be {age + 5} years old.")
```

🧠 Why Use f-Strings?

Clean and readable syntax
Faster execution compared to older formatting methods
Supports complex expressions and function calls directly within strings
Makes dynamic string generation easier in real-world applications

🛠️ Prerequisites:

Python 3.6 or higher installed
Basic understanding of Python variables and data types
A code editor (VS Code, PyCharm, etc.) or Python shell

📥 Helpful Links & Resources:

👉 Python String Formatting Guide: [https://docs.python.org/3/tutorial/in...](https://docs.python.org/3/tutorial/in...)
👉 Python Format Specification Mini-Language: [https://docs.python.org/3/library/str...](https://docs.python.org/3/library/str...)
👉 W3Schools Python f-Strings: [https://www.w3schools.com/python/ref\_string\_format.asp](https://www.w3schools.com/python/ref_...)

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🧑‍💻 Ready to supercharge your strings in Python? Let’s get formatting the smart way with f-strings!

Would you like a follow-up tutorial comparing f-strings to other string formatting methods in more depth?