PCEP-30-02 часть четвертая

Привет! Продолжаем!

Section 4: Functions and Exceptions (28%)

PCEP-30-02 4.1 – Decompose the code using functions

• defining and invoking user-defined functions and generators - Python User defined functions
• the return keyword, returning results - Python return statement
• the None keyword - Python None Keyword
• recursion - Recursion in Python

PCEP-30-02 4.2 – Organize interaction between the function and its environment

• parameters vs. arguments - Parameter vs Argument Python
• positional, keyword, and mixed argument passing - Функции с позиционными и именованными аргументами
• default parameter values
• name scopes, name hiding (shadowing), and the global keyword - What is Scope in Python ?

PCEP-30-02 4.3 – Python Built-In Exceptions Hierarchy

• BaseException - BaseException
• Exception - Exception
• SystemExit - SystemExit
• KeyboardInterrupt - KeyboardInterrupt
• abstract exceptions
• ArithmeticError - ArithmeticError
• LookupError - LookupError
• IndexError - IndexError
• KeyError - KeyError
• TypeError - TypeError
• ValueError - ValueError

PCEP-30-02 4.4 – Basics of Python Exception Handling

• try-except / the try-except Exception - Errors and Exceptions
• ordering the except branches
• propagating exceptions through function boundaries
• delegating responsibility for handling exceptions