code: def canonical_name(name):
      
      if name.lower() == 'planck':  # make sure to handle the Planck window
          return 'planck'
      try:  # use equivalence introduced in scipy 0.16.0
          # pylint: disable=protected-access
          return scipy_windows._win_equiv[name.lower()].__name__
      except AttributeError:  # old scipy
          try:
              return getattr(scipy_windows, name.lower()).__name__
          except AttributeError:  # no match
              pass  # raise later
      except KeyError:  # no match
          pass  # raise later
  
      raise ValueError('no window function in scipy.signal equivalent to %r'
                       % name,)
docs: Find the canonical name for the given window in scipy.signal
  
      Parameters
      ----------
      name : `str`
          the name of the window you want
  
      Returns
      -------
      realname : `str`
          the name of the window as implemented in `scipy.signal.window`
  
      Raises
      -------
      ValueError
          if ``name`` cannot be resolved to a window function in `scipy.signal`
  
      Examples
      --------
      >>> from gwpy.signal.window import canonical_name
      >>> canonical_name('hanning')
      'hann'
      >>> canonical_name('ksr')
      'kaiser'