Tell me about pytest. What is TFL used for (presumably meant: what is pytest used for in general)?

pytest is a popular framework for writing and running tests in Python. It simplifies the testing process with concise syntax, automatic test discovery, and many useful plugins.

Main features of pytest:

• Easy test writing using functions or classes.
• Support for fixtures to prepare and clean up test environments.
• Test parameterization to check different input data.
• Detailed reports and convenient error output.

Example of a simple test with pytest:

import pytest

def add(a, b):
    return a + b

def test_add():
    assert add(2, 3) == 5

pytest is used for automation of testing, which allows quickly finding errors, improving code quality, and speeding up the development process.