dtschema v2020.08.1 json.decoder.JSONDecodeError error

[Krzysztof Kozlowski <krzk@kernel.org>]

Hi Rob,

I am trying dt_bindings_check with on top of next-20200826 with dtschema
v2020.08.01 and got errors on all schemas:

=======
Traceback (most recent call last):
  File "/home/krzk/.local/lib/python3.5/site-packages/jsonschema/validators.py", line 777, in resolve_from_url
    document = self.resolve_remote(url)
  File "/home/krzk/.local/lib/python3.5/site-packages/jsonschema/validators.py", line 860, in resolve_remote
    result = requests.get(uri).json()
  File "/home/krzk/.local/lib/python3.5/site-packages/requests/models.py", line 897, in json
    return complexjson.loads(self.text, **kwargs)
  File "/usr/lib/python3.5/json/__init__.py", line 319, in loads
    return _default_decoder.decode(s)
  File "/usr/lib/python3.5/json/decoder.py", line 339, in decode
  DTEX    Documentation/devicetree/bindings/net/allwinner,sun7i-a20-gmac.example.dts
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "/usr/lib/python3.5/json/decoder.py", line 357, in raw_decode
    raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/krzk/.local/bin/dt-doc-validate", line 67, in <module>
    ret = check_doc(f)
  File "/home/krzk/.local/bin/dt-doc-validate", line 33, in check_doc
    for error in sorted(dtschema.DTValidator.iter_schema_errors(testtree), key=lambda e: e.linecol):
  File "/home/krzk/.local/lib/python3.5/site-packages/dtschema/lib.py", line 663, in iter_schema_errors
    meta_schema = cls.resolver.resolve_from_url(schema['$schema'])
  File "/home/krzk/.local/lib/python3.5/site-packages/jsonschema/validators.py", line 779, in resolve_from_url
    raise exceptions.RefResolutionError(exc)
jsonschema.exceptions.RefResolutionError: Expecting value: line 1 column 1 (char 0)
=======


Python v3.5.2
Ubuntu 16.04

Direct dependencies of dtschema updated via pip3.

Any hints?

Best regards,
Krzysztof