Python

How do the global and nonlocal operators work in Python?

What is the principle of the Liskov Substitution Principle (LSP) and how is it applied in Python development?

What are StringIO and BytesIO in Python and what are they used for?

What is a cursor in the context of working with databases and what is its function?

How to properly request user input in Python?

What problems does GIL (Global Interpreter Lock) solve in Python?

When is the __init__.py file executed?

What are the differences between the pytz library and the datetime module in Python?

How do you find a balance between the principles of KISS and DRY?

How can you convert a string to bytes and back?

What is the purpose of the mypy library?

What monitoring systems are you familiar with?

What is the complexity of inserting an element into a list in Python?

What is a hash and how is it used in Python dictionaries?

What are closures in Python?

What is the time complexity of inserting and extracting elements in a Python dictionary (dict)?

What is a primary key (PK) and a foreign key (FK) in SQL?

What is multiprocessing?

What is the difference between relative and absolute import in Python?

What is the Chain of Responsibility pattern?