Returns a tuple of `__version__` and `__doc__` form the modul.

  If *path* is set, it is temporarily added to `sys.path`.

def get_meta(path=None):
  """
  Returns a tuple of `__version__` and `__doc__` form the modul.

  If *path* is set, it is temporarily added to `sys.path`.

  """
  if path:
    sys.path.insert(1, path)
  from wdiffhtml import __version__, __doc__
  if path:
    del(sys.path[0])
  return __version__, __doc__