What standards or formatting rules for code were applied in your previous company?

In my previous company, the following formatting standards were applied to Python code:

• Using PEP 8 as the main style guide (4 spaces indentation, line length up to 79 characters).
• Naming variables and functions in snake_case, classes in PascalCase.
• Mandatory documentation of functions and classes using docstrings.
• Using linters (e.g., flake8) and formatters (black) for automatic code checking and formatting.
• Separating logic into functions and modules to improve readability and maintainability.

Example of function formatting according to PEP 8:

def calculate_sum(a, b):
    """Returns the sum of two numbers."""
    return a + b