Access package version set by setuptools-scm from installed package

Question

I use setuptools-scm to manage my package version and it works great for releasing to PyPI.

Now I'm trying to make the package version available to the installed package at e.g. my_package.__version__. I found the write_to method in setuptools-scm and it creates a version.py file. However, when I install the package I can't import my_package.version and can't access the version stored in that file.

I suppose it's added after setuptools builds the package. How can I make the version available with setuptools-scm?

My current setup.py:

setup(name='my_package',
      use_scm_version={
          "root": ".",
          "relative_to": __file__,
          "local_scheme": "node-and-timestamp",
          "write_to": "my_package/version.py"
      },
      setup_requires=['setuptools_scm'],
      packages=find_packages()
...
)

When I install with this setup.py I can properly import the package but can't do from my_package import version.