| # Copyright 2021 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. | |
| import typing | |
| import IPython | |
| from . import _helpers | |
| if typing.TYPE_CHECKING: | |
| import pandas | |
| def query() -> "pandas.DataFrame": | |
| ip = IPython.get_ipython() | |
| ip.extension_manager.load_extension("google.cloud.bigquery") | |
| sample = """ | |
| # [START bigquery_jupyter_query] | |
| %%bigquery | |
| SELECT name, SUM(number) as count | |
| FROM `bigquery-public-data.usa_names.usa_1910_current` | |
| GROUP BY name | |
| ORDER BY count DESC | |
| LIMIT 3 | |
| # [END bigquery_jupyter_query] | |
| """ | |
| result = ip.run_cell(_helpers.strip_region_tags(sample)) | |
| result.raise_error() # Throws an exception if the cell failed. | |
| df = ip.user_ns["_"] # Retrieves last returned object in notebook session | |
| return df | |