What are the generally accepted recommendations and standards for writing software code?

Common recommendations for writing Python code include:

• Follow PEP 8 — the official Python coding style (indentations, line length, variable naming).
• Use clear and descriptive names for variables and functions.
• Write functions and methods that perform a single task (single responsibility principle).
• Add comments and docstrings for complex code sections and public functions.
• Avoid code duplication, use functions and classes for reusable parts.
• Write tests to verify code correctness.

Example of simple and readable code:

def calculate_area(radius):
    """Calculates the area of a circle given the radius."""
    import math
    return math.pi * radius ** 2

area = calculate_area(5)
print(f"Circle area: {area:.2f}")