update python_medium.py

update python_hard.py

update python_easy.py

update python_medium.py

update python_hard.py

update python_easy.py

delete scripts/MATPLOTLIB_CHEATSHEET.md

delete scripts/PANDAS_CHEATSHEET.md

delete scripts/CODE_REQUIREMENTS.md

delete scripts/ASSIGNMENTS_README.md

update README.md

create README.md

Запрос на слияние 'task' (#1) из task в master

create demo/artefacts.md

create dev/solution.cs

delete tasks.md

delete PRD.md

create demo/artefacts.md