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Move bigquery 'getting started' sample into github. #78
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#!/usr/bin/env python | ||
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# Copyright 2015, Google, Inc. | ||
# 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. | ||
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"""Sample for making BigQuery queries using the python sdk. | ||
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This is a command-line script that queries a public shakespeare dataset, and | ||
displays the 10 of Shakespeare's works with the greatest number of distinct | ||
words. | ||
""" | ||
# [START all] | ||
from apiclient.discovery import build | ||
from apiclient.errors import HttpError | ||
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from oauth2client.client import GoogleCredentials | ||
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def main(project_id): | ||
# [START build_service] | ||
# Grab the application's default credentials from the environment. | ||
There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. Add a link to the ADC page. There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. I feel like that's better left in the doc that uses this sample - urls take up a lot of room, and warrant some text around it explaining why you'd want to go there. eg if I were to add a url in this comment, I'd also want to say something like, "For more information on application default credentials, go to: http...", and that's another two lines of code. If I could just add a footnote to ADC, or link it, that'd work, but since I can't, I'd rather keep the code brief and to the point. |
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credentials = GoogleCredentials.get_application_default() | ||
# Construct the service object for interacting with the BigQuery API. | ||
bigquery_service = build('bigquery', 'v2', credentials=credentials) | ||
# [END build_service] | ||
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try: | ||
# [START run_query] | ||
query_request = bigquery_service.jobs() | ||
query_data = { | ||
'query': ('SELECT TOP(corpus, 10) as title, ' | ||
'COUNT(*) as unique_words ' | ||
'FROM [publicdata:samples.shakespeare];') | ||
} | ||
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query_response = query_request.query( | ||
projectId=project_id, | ||
body=query_data).execute() | ||
# [END run_query] | ||
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# [START print_results] | ||
print('Query Results:') | ||
for row in query_response['rows']: | ||
print('\t'.join(field['v'] for field in row['f'])) | ||
# [END print_results] | ||
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except HttpError as err: | ||
print('Error: {}'.format(err.content)) | ||
raise err | ||
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if __name__ == '__main__': | ||
# The id of the project to run queries under. | ||
project_id = input("Enter the project ID: ") | ||
main(project_id) | ||
# [END all] |
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# Copyright 2015, Google, Inc. | ||
There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. Thanks for adding tests. :) |
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# 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. | ||
# | ||
import re | ||
import unittest | ||
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from bigquery.samples import getting_started | ||
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import tests | ||
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class TestGettingStarted(tests.CloudBaseTest): | ||
def test_main(self): | ||
with tests.capture_stdout() as mock_stdout: | ||
getting_started.main(self.constants['projectId']) | ||
stdout = mock_stdout.getvalue() | ||
self.assertRegexpMatches(stdout, re.compile( | ||
r'Query Results:.hamlet', re.DOTALL)) | ||
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if __name__ == '__main__': | ||
unittest.main() |
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Any reason not to use bigquery.samples.utils.get_service()?
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Mainly just keeping the sample self-contained.
If I were writing an app, factoring into utils would make sense; but for the purposes of explanation, it's nice to have everything relevant in one place.