Packaging wont work if you add any other package dependency in your package

[unlucky-cat]

How to reproduce:

1. Add import numpy as np into your vector.py file and for example this dummy method into Vector2D class

    #vector.py
    import numpy as np
    ...    

    class Vector2D:
    ...
        def get_numpy_version(self):
            return np.__version__
    ...

2. run pip install -e .

you will get

# terminal output
(.venv) ...>pip install -e .
Obtaining .../VSCode/PythonProjectTemplate
  Installing build dependencies ... done
  Checking if build backend supports build_editable ... done
  Getting requirements to build editable ... error
  ,,,
  ModuleNotFoundError: No module named 'numpy'

you can fix this by making the following change int the pyproject.toml file, changing this

[tool.setuptools.dynamic]
version = {attr = "fastvector.__version__"}

to this

[tool.setuptools.dynamic]
version = {attr = "fastvector.version.__version__"}

OR

by adding Numpy to the build system dependencies

[build-system]
requires = [
    "setuptools",
    "setuptools-scm",
    "numpy",
]