content: """Define the package version.
  
  Called __version.py as setuptools_scm will create a _version.py
  """
  
  import os.path
  
  PACKAGE = "datashader"
  
  try:
      # For performance reasons on imports, avoid importing setuptools_scm
      # if not in a .git folder
      if os.path.exists(os.path.join(os.path.dirname(__file__), "..", ".git")):
          # If setuptools_scm is installed (e.g. in a development environment with
          # an editable install), then use it to determine the version dynamically.
          from setuptools_scm import get_version
  
          # This will fail with LookupError if the package is not installed in
          # editable mode or if Git is not installed.
          __version__ = get_version(root="..", relative_to=__file__)
      else:
          raise FileNotFoundError
  except (ImportError, LookupError, FileNotFoundError):
      # As a fallback, use the version that is hard-coded in the file.
      try:
          # __version__ was added in _version in setuptools-scm 7.0.0, we rely on
          # the hopefully stable version variable.
          from ._version import version as __version__
      except (ModuleNotFoundError, ImportError):
          # Either _version doesn't exist (ModuleNotFoundError) or version isn't
          # in _version (ImportError). ModuleNotFoundError is a subclass of
          # ImportError, let's be explicit anyway.
  
          # Try something else:
          from importlib.metadata import PackageNotFoundError, version
  
          try:
              __version__ = version(PACKAGE)
          except PackageNotFoundError:
              # The user is probably trying to run this without having installed
              # the package.
              __version__ = "0.0.0+unknown"
  
  __all__ = ("__version__",)
  