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I downloaded the notebook available on https://gluon-ts.mxnet.io/examples/forecasting/tutorial.html, and run it on my local laptop (Darwin Kernel Version 16.7.0, Anaconda3 Distro, Python 3.7.3, Jupyter 4.4.0, gluonts 0.1.1) and get the following exception at:
from gluonts.model.simple_feedforward import SimpleFeedForwardEstimator
from gluonts.trainer import Trainer
---------------------------------------------------------------------------
TypeError Traceback (most recent call last)
~/python/anaconda3/lib/python3.7/site-packages/pydantic/validators.py in find_validators(type_, arbitrary_types_allowed)
261 try:
--> 262 if issubclass(type_, val_type):
263 return validators
TypeError: issubclass() arg 1 must be a class
The above exception was the direct cause of the following exception:
RuntimeError Traceback (most recent call last)
<ipython-input-13-1fca1cb620ad> in <module>
----> 1 from gluonts.model.simple_feedforward import SimpleFeedForwardEstimator
2 from gluonts.trainer import Trainer
~/python/anaconda3/lib/python3.7/site-packages/gluonts/model/simple_feedforward/__init__.py in <module>
1 # Relative imports
----> 2 from ._estimator import SimpleFeedForwardEstimator
3
4 __all__ = ['SimpleFeedForwardEstimator']
~/python/anaconda3/lib/python3.7/site-packages/gluonts/model/simple_feedforward/_estimator.py in <module>
7 # First-party imports
8 from gluonts.core.component import validated
----> 9 from gluonts.distribution import DistributionOutput, StudentTOutput
10 from gluonts.model.estimator import GluonEstimator
11 from gluonts.model.predictor import Predictor, RepresentableBlockPredictor
~/python/anaconda3/lib/python3.7/site-packages/gluonts/distribution/__init__.py in <module>
14 # Relative imports
15 from . import bijection
---> 16 from .binned import Binned, BinnedOutput
17 from .distribution import Distribution
18 from .distribution_output import DistributionOutput
~/python/anaconda3/lib/python3.7/site-packages/gluonts/distribution/binned.py in <module>
166
167
--> 168 class BinnedOutput(DistributionOutput):
169 distr_cls: type = Binned
170
~/python/anaconda3/lib/python3.7/site-packages/gluonts/distribution/binned.py in BinnedOutput()
170
171 @validated()
--> 172 def __init__(self, bin_centers: List) -> None:
173 # cannot pass directly nd.array because it is not serializable
174 bc = mx.nd.array(bin_centers)
~/python/anaconda3/lib/python3.7/site-packages/gluonts/core/component.py in validator(ctor)
167 f'{ctor_clsnme}Model',
168 __config__=ConfigBase.Config,
--> 169 **ctor_fields,
170 )
171 else:
~/python/anaconda3/lib/python3.7/site-packages/pydantic/main.py in create_model(model_name, __config__, __base__, **field_definitions)
408 annotation=f_annotation,
409 class_validators=vg.get_validators(f_name),
--> 410 config=config,
411 )
412
~/python/anaconda3/lib/python3.7/site-packages/pydantic/fields.py in infer(cls, name, value, annotation, class_validators, config)
105 required=required,
106 model_config=config,
--> 107 schema=schema,
108 )
109
~/python/anaconda3/lib/python3.7/site-packages/pydantic/fields.py in __init__(self, name, type_, class_validators, default, required, model_config, alias, allow_none, schema)
85 self.shape: Shape = Shape.SINGLETON
86 self._schema: Schema = schema
---> 87 self.prepare()
88
89 @classmethod
~/python/anaconda3/lib/python3.7/site-packages/pydantic/fields.py in prepare(self)
134
135 self._populate_sub_fields()
--> 136 self._populate_validators()
137
138 def schema(self, by_alias=True):
~/python/anaconda3/lib/python3.7/site-packages/pydantic/fields.py in _populate_validators(self)
264 *tuple(v.func for v in self.class_validators if not v.whole and v.pre),
265 *(get_validators() if get_validators else find_validators(self.type_,
--> 266 self.model_config.arbitrary_types_allowed)),
267 *tuple(v.func for v in self.class_validators if not v.whole and not v.pre),
268 )
~/python/anaconda3/lib/python3.7/site-packages/pydantic/validators.py in find_validators(type_, arbitrary_types_allowed)
263 return validators
264 except TypeError as e:
--> 265 raise RuntimeError(f'error checking inheritance of {type_!r} (type: {display_as_type(type_)})') from e
266
267 if arbitrary_types_allowed:
RuntimeError: error checking inheritance of ~T (type: T)
The text was updated successfully, but these errors were encountered:
Hi @acbecker, I just tried running the notebook on a similar configuration: Darwin Kernel Version 17.7.0, Python 3.7.3 (pyenv), Jupyter 4.4.0, gluonts 0.1.1.
I could not reproduce this problem. I did find other problems, but once I get to the cell you mention, everything works OK. We'll keep this here and see again if we can reproduce it. Could Anaconda vs pyenv make a difference?
I downloaded the notebook available on https://gluon-ts.mxnet.io/examples/forecasting/tutorial.html, and run it on my local laptop (Darwin Kernel Version 16.7.0, Anaconda3 Distro, Python 3.7.3, Jupyter 4.4.0, gluonts 0.1.1) and get the following exception at:
The text was updated successfully, but these errors were encountered: