File "/Users/peterk/trees/iMolpro/Chooser.py", line 198, in action
self.parent.window_manager.register(ProjectWindow(self.filename, self.parent.window_manager))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/peterk/trees/iMolpro/ProjectWindow.py", line 227, in __init__
self.guided_pane = GuidedPane(self)
^^^^^^^^^^^^^^^^
File "/Users/peterk/trees/iMolpro/ProjectWindow.py", line 1390, in __init__
self.guided_orbitals_input = OrbitalInput(self)
^^^^^^^^^^^^^^^^^^
File "/Users/peterk/trees/iMolpro/ProjectWindow.py", line 1667, in __init__
self.refresh()
File "/Users/peterk/trees/iMolpro/ProjectWindow.py", line 1673, in refresh
k != 'nbo' or self.parent.input_specification.open_shell_electrons is None or self.parent.input_specification.open_shell_electrons == 0])
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/peterk/trees/iMolpro/molpro_input.py", line 589, in open_shell_electrons
atomic_number = periodic_table.index(word) + 1
^^^^^^^^^^^^^^^^^^^^^^^^^^
ValueError: 'C\t' is not in list