saving the game function is broken

[PeterJust]

Exception in function show at Wed Jun 27 00:40:20 2018 CEST:
Traceback (most recent call last):
File "/path/to/singularity-master/code/safety.py", line 47, in safe_call
return func(*args, **kwargs)
File "/path/to/singularity-master/code/graphics/dialog.py", line 202, in show
result = self.handle(event)
File "/path/to/singularity-master/code/graphics/dialog.py", line 329, in handle
return self.call_handlers(handlers, event)
File "/path/to/singularity-master/code/graphics/dialog.py", line 341, in call_handlers
handler(event)
File "/path/to/singularity-master/code/graphics/button.py", line 114, in handle_event
self.activate_with_sound(event)
File "/path/to/singularity-master/code/graphics/button.py", line 127, in activate_with_sound
self.activated(event)
File "/path/to/singularity-master/code/graphics/button.py", line 169, in activated
self.function(*self.args, **self.kwargs)
File "/path/to/singularity-master/code/screens/map.py", line 228, in show_menu
exit = dialog.call_dialog(self.menu_dialog, self)
File "/path/to/singularity-master/code/graphics/dialog.py", line 96, in call_dialog
retval = dialog.show()
File "/path/to/singularity-master/code/graphics/dialog.py", line 202, in show
result = self.handle(event)
File "/path/to/singularity-master/code/graphics/dialog.py", line 329, in handle
return self.call_handlers(handlers, event)
File "/path/to/singularity-master/code/graphics/dialog.py", line 341, in call_handlers
handler(event)
File "/path/to/singularity-master/code/graphics/button.py", line 114, in handle_event
self.activate_with_sound(event)
File "/path/to/singularity-master/code/graphics/button.py", line 127, in activate_with_sound
self.activated(event)
File "/path/to/singularity-master/code/graphics/button.py", line 169, in activated
self.function(*self.args, **self.kwargs)
File "/path/to/singularity-master/code/screens/map.py", line 675, in save_game
print(sv.savegame_exists(name))
File "/path/to/singularity-master/code/savegame.py", line 184, in savegame_exists
load_path = get_savegame_path(savegame_name)
NameError: global name 'get_savegame_path' is not defined