[x] Executed isort, mypy, pylint, radon/xenon with no errors
[x] The change is fully covered by automated unit tests
[x] Documented in docs/ as appropriate
[x] Added an entry to the CHANGES file
Remove pypy from implementation, the py-datastruct package is not compatible with PyPy.
update the README.md regarding Poetry and how to install tooling for tests
isort, mypy, pylint, radon/xenonwith no errorsRemove pypy from implementation, the
py-datastructpackage is not compatible with PyPy. update the README.md regarding Poetry and how to install tooling for tests