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Rasa Dariush
Rasa Dariush

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🚀 RS Calculator v0.2.0: Safer, Smarter, and Now Supports Full Math Expressions!

#python #programming #github #discuss

🚀 RS Calculator v0.2.0: Now Handles Full Expressions with Infinite Numbers, Operators, and Safety 💥

Hey Pythonistas! 👋

I’m thrilled to announce a huge upgrade to my beginner-friendly calculator library: RS Calculator v0.2.0 🎉

This version brings smarter math, safer evaluation, and a cleaner package design — all in one release!

✨ What’s New in v0.2.0?

✅ Infinite numbers and operators — write full expressions like "2 + 3 * 4 - 1 / 5 + (6 ** 2)"

✅ Parentheses and operator precedence now work correctly

✅ Secure evaluation using asteval instead of risky eval()

✅ Input validation: only math-safe characters allowed

✅ Modern packaging with pyproject.toml

✅ Clear error messages for division by zero and invalid input

📦 Installation

Install via pip:

pip install rs-calculator
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Or

pip install rs-calculator==0.2.0
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🧠 How to Use 

from rs_calculator import calculate, show_help # Infinite numbers and multiple operators print(calculate("2 + 3 * 4 - 1 / 5 + (6 ^ 2)")) # 40.8 print(calculate("10 + 5 * 2 - 3 // 2 + (8 % 3)")) # 20.5 print(calculate("5 ^ 2 + 10")) # 35  # Division by zero print(calculate("10 / 0")) # Error: Division by zero  # Help message show_help()
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🛡️ Safe Expression Evaluation

No risky eval() calls!
RS Calculator now uses asteval, a safe math-only interpreter that:

  • Only evaluates valid math expressions
  • Rejects anything with unsafe characters or code
  • Supports only: 0-9, +, -, *, x, /, //, %, **, ^, (), and whitespace

🧱 Built for Beginners

I created rs_calculator to give new Python learners a clean, fun way to explore:

  • Packaging a Python module
  • Using safe expression evaluation
  • Understanding how a calculator works under the hood

📚 Project Info

💌 Let’s Connect

Have suggestions? Want to collaborate? Feel free to:

📬 Email: letperhut@gmail.com
🌐 GitHub: @Rasa8877

If this helped you, please ⭐ the repo, share it with a fellow learner, or give me a shout!
Thanks for reading, and happy coding! 🙌

#python #pypi #opensource #beginners #devtools

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