What is Blockchain?

Blockchain (Polish for chain of blocks) has recently been a popular word in the Internet’s clouds. In this article I will try to expose what the famous Blockchain is and what it can do be useful.

String beautification, or how to format thongs in Python

There were two methods of formatting thongs in python. This situation lasted until the emergence of Python 3.6, with the arrival of the f-strings. Today I will try to discuss all formatting methods, and give an example of their use.