vscode install python https://code.visualstudio.com/docs/python/python-tutorial passing an integer by reference https://stackoverflow.com/questions/15148496/passing-an-integer-by-reference-in-python Structuring Your Project https://docs.python-guide.org/writing/structure/ Packages https://www.jianshu.com/p/aa1d4c270260 Unit Test https://docs.pytest.org/en/latest/