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# Copyright 2019 Google LLC

#

# 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

#

# https://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.

def dataset_exists(dataset_id: str) -> None:

# [START bigquery_dataset_exists]

from google.cloud import bigquery

from google.cloud.exceptions import NotFound

client = bigquery.Client()

# TODO(developer): Set dataset_id to the ID of the dataset to determine existence.

# dataset_id = "your-project.your_dataset"

try:

client.get_dataset(dataset_id) # Make an API request.

print("Dataset {} already exists".format(dataset_id))

except NotFound:

print("Dataset {} is not found".format(dataset_id))

# [END bigquery_dataset_exists]