What does your command line look like?

Hi, I am not using the command line, I am using the load function imported to a python file to create a model object.

I'll have to go back to that part of the code. Did you try to save a model as JSON and then load it back again?

Hi @izar , apologies for such a belated response on this! One thing I have tried is running your unit tests but renaming output.json to input.json as this is a much more complete model in terms of different functions. The test now fails with the following:

======================================================================
ERROR: test_json_loads (tests.test_pytmfunc.TestTM)

Traceback (most recent call last):
File "/home/jon/pytm_clone/tests/test_pytmfunc.py", line 343, in test_json_loads
tm = loads(contents)
File "/home/jon/pytm_clone/pytm/json.py", line 23, in loads
result = json.loads(s, object_hook=decode)
File "/usr/lib/python3.10/json/init.py", line 359, in loads
return cls(**kw).decode(s)
File "/usr/lib/python3.10/json/decoder.py", line 337, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "/usr/lib/python3.10/json/decoder.py", line 353, in raw_decode
obj, end = self.scan_once(s, idx)
File "/home/jon/pytm_clone/pytm/json.py", line 41, in decode
boundaries = decode_boundaries(data.pop("boundaries", []))
File "/home/jon/pytm_clone/pytm/json.py", line 61, in decode_boundaries
e = Boundary(name, **e)
File "/home/jon/pytm_clone/pytm/pytm.py", line 1769, in init
super().init(name, **kwargs)
File "/home/jon/pytm_clone/pytm/pytm.py", line 1301, in init
setattr(self, key, value)
File "/home/jon/pytm_clone/pytm/pytm.py", line 248, in set
raise ValueError(
ValueError: expecting an Controls value, got a <class 'dict'>

thanks for the report! I'll take a look at it as soon as time permits.

any news about this issue?