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#!/usr/bin/env python

# 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.

"""Command-line application that demonstrates basic BigQuery API usage.

This sample queries a public shakespeare dataset and displays the 10 of

Shakespeare's works with the greatest number of distinct words.

This sample is used on this page:

https://cloud.google.com/bigquery/bigquery-api-quickstart

For more information, see the README.md under /bigquery.

"""

# [START all]

import argparse

from googleapiclient.discovery import build

from googleapiclient.errors import HttpError

from oauth2client.client import GoogleCredentials

def main(project_id):

# [START build_service]

# Grab the application's default credentials from the environment.

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]

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];')

}

query_response = query_request.query(

projectId=project_id,

body=query_data).execute()

# [END run_query]

# [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]

except HttpError as err:

print('Error: {}'.format(err.content))

raise err

if __name__ == '__main__':

parser = argparse.ArgumentParser(

description=__doc__,

formatter_class=argparse.RawDescriptionHelpFormatter)

parser.add_argument('project_id', help='Your Google Cloud Project ID.')

args = parser.parse_args()

main(args.project_id)

# [END all]