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model_version.py
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model_version.py
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#
# Copyright (c) 2022, Neptune Labs Sp. z o.o.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
from neptune.new.attributes.constants import SYSTEM_STAGE_ATTRIBUTE_PATH
from neptune.new.exceptions import NeptuneOfflineModeChangeStageException
from neptune.new.internal.container_type import ContainerType
from neptune.new.internal.operation_processors.offline_operation_processor import (
OfflineOperationProcessor,
)
from neptune.new.metadata_containers import MetadataContainer
from neptune.new.types.model_version_stage import ModelVersionStage
class ModelVersion(MetadataContainer):
"""A class for managing a Neptune model version and retrieving information from it.
You may also want to check `ModelVersion docs page`_.
.. _ModelVersion docs page:
https://docs.neptune.ai/api-reference/model-version
"""
container_type = ContainerType.MODEL_VERSION
@property
def _docs_url_stop(self) -> str:
return "https://docs.neptune.ai/api-reference/model-version#.stop"
@property
def _label(self) -> str:
return self._sys_id
@property
def _url(self) -> str:
return self._backend.get_model_version_url(
model_version_id=self._id,
workspace=self._workspace,
project_name=self._project_name,
sys_id=self._sys_id,
model_id=self["sys/model_id"].fetch(),
)
@property
def _metadata_url(self) -> str:
return self._url.rstrip("/") + "/metadata"
def change_stage(self, stage: str):
mapped_stage = ModelVersionStage(stage)
if isinstance(self._op_processor, OfflineOperationProcessor):
raise NeptuneOfflineModeChangeStageException()
self.wait()
with self.lock():
attr = self.get_attribute(SYSTEM_STAGE_ATTRIBUTE_PATH)
# We are sure that such attribute exists, because
# SYSTEM_STAGE_ATTRIBUTE_PATH is set by default on ModelVersion creation
assert attr is not None, f"No {SYSTEM_STAGE_ATTRIBUTE_PATH} found in model version"
attr.process_assignment(
value=mapped_stage.value,
wait=True,
)