File "electrum\gui\qt\__init__.py", line 245, in wrapper
  File "electrum\gui\qt\__init__.py", line 269, in start_new_window
  File "electrum\gui\qt\__init__.py", line 307, in _start_wizard_to_select_or_create_wallet
  File "electrum\gui\qt\installwizard.py", line 298, in select_storage
  File "electrum\util.py", line 479, in get_new_wallet_name