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#!/usr/bin/env python

# Copyright 2016 Google Inc. All Rights Reserved.

#

# 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.

def run_quickstart(instance_id, database_id):

# [START spanner_quickstart]

# Imports the Google Cloud Client Library.

from google.cloud import spanner

# Your Cloud Spanner instance ID.

# instance_id = "my-instance-id"

#

# Your Cloud Spanner database ID.

# database_id = "my-database-id"

# Instantiate a client.

spanner_client = spanner.Client()

# Get a Cloud Spanner instance by ID.

instance = spanner_client.instance(instance_id)

# Get a Cloud Spanner database by ID.

database = instance.database(database_id)

# Execute a simple SQL statement.

with database.snapshot() as snapshot:

results = snapshot.execute_sql("SELECT 1")

for row in results:

print(row)

# [END spanner_quickstart]

if __name__ == "__main__":

run_quickstart()