In [1]: import cantera as ct

In [2]: sol = ct.Solution('test/data/kineticsfromscratch.cti')

In [3]: sol.n_species, sol.n_reactions
Out[3]: (9, 5)

$ cd test/data
$ cti2yaml kineticsfromscratch.cti 
Traceback (most recent call last):
  File "/usr/local/bin/cti2yaml", line 11, in <module>
    load_entry_point('Cantera==2.6.0a1', 'console_scripts', 'cti2yaml')()
  File "/usr/local/lib/python3.6/dist-packages/cantera/cti2yaml.py", line 1701, in main
    convert(input_file, output_file)
  File "/usr/local/lib/python3.6/dist-packages/cantera/cti2yaml.py", line 1661, in convert
    emitter.dump(phases_map, dest)
  File "/home/docker/.local/lib/python3.6/site-packages/ruamel/yaml/main.py", line 451, in dump
    return self.dump_all([data], stream, _kw, transform=transform)
  File "/home/docker/.local/lib/python3.6/site-packages/ruamel/yaml/main.py", line 465, in dump_all
    self._context_manager.dump(data)
  File "/home/docker/.local/lib/python3.6/site-packages/ruamel/yaml/main.py", line 817, in dump
    self._yaml.representer.represent(data)
  File "/home/docker/.local/lib/python3.6/site-packages/ruamel/yaml/representer.py", line 85, in represent
    node = self.represent_data(data)
  File "/home/docker/.local/lib/python3.6/site-packages/ruamel/yaml/representer.py", line 112, in represent_data
    node = self.yaml_representers[data_types[0]](self, data)
  File "/home/docker/.local/lib/python3.6/site-packages/ruamel/yaml/representer.py", line 1173, in represent_dict
    return self.represent_mapping(tag, data)
  File "/home/docker/.local/lib/python3.6/site-packages/ruamel/yaml/representer.py", line 1018, in represent_mapping
    node_value = self.represent_data(item_value)
  File "/home/docker/.local/lib/python3.6/site-packages/ruamel/yaml/representer.py", line 112, in represent_data
    node = self.yaml_representers[data_types[0]](self, data)
  File "/home/docker/.local/lib/python3.6/site-packages/ruamel/yaml/representer.py", line 350, in represent_list
    return self.represent_sequence(u'tag:yaml.org,2002:seq', data)
  File "/home/docker/.local/lib/python3.6/site-packages/ruamel/yaml/representer.py", line 934, in represent_sequence
    node_item = self.represent_data(item)
  File "/home/docker/.local/lib/python3.6/site-packages/ruamel/yaml/representer.py", line 112, in represent_data
    node = self.yaml_representers[data_types[0]](self, data)
  File "/usr/local/lib/python3.6/dist-packages/cantera/cti2yaml.py", line 1108, in to_yaml
    node.get_yaml(out)
  File "/usr/local/lib/python3.6/dist-packages/cantera/cti2yaml.py", line 1156, in get_yaml
    out['transport'] = _newNames[self.transport]
KeyError: 'None'