{ "version": "0.3.0", "helices": [ {"grid_position": [0, 0]}, {"max_offset": 32, "grid_position": [0, 1]} ], "strands": [ { "color": "#0066cc", "substrands": [ {"helix": 0, "forward": true, "start": 0, "end": 32} ], "is_scaffold": true } ] }

Exception raised: '>' not supported between instances of 'NoneType' and 'int'