PyRun - Free Python Compiler | Run Python Code Online

main.py

# Welcome to PyRun IDE
# A modern Python development environment

def welcome_message():
    name = input("Enter your name: ")
    print(f"\nHello {name}! Welcome to PyRun IDE.")
    print("This is a fully-featured Python IDE in your browser.")
    return name

# Example functions
def calculate_fibonacci(n):
    """Calculate Fibonacci sequence"""
    a, b = 0, 1
    sequence = []
    while len(sequence) < n:
        sequence.append(a)
        a, b = b, a + b
    return sequence

def factorial(n):
    """Calculate factorial"""
    if n <= 1:
        return 1
    return n * factorial(n - 1)

# Main execution
if __name__ == "__main__":
    print("=" * 50)
    print("PyRun IDE - Python Development Environment")
    print("=" * 50)
    
    # Get user input
    user = welcome_message()
    
    # Demonstrate features
    print(f"\nHello {user}, here are some calculations:")
    
    # Fibonacci example
    fib_sequence = calculate_fibonacci(10)
    print(f"First 10 Fibonacci numbers: {fib_sequence}")
    
    # Factorial example
    num = 5
    print(f"Factorial of {num}: {factorial(num)}")
    
    print("\nYou can write, run, and save Python code here!")
    print("Try modifying this code or create new files.")

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main.py

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