Google Spanner Python Connector
Read, write, and update Google Spanner with Python
Easily connect Python-based data access, visualization, ORM, ETL, AI/ML, and custom apps with Google Spanner!
Python Connector Libraries for Google Spanner Data Connectivity. Integrate Google Spanner with popular Python tools like Pandas, SQLAlchemy, Dash & petl. Easy-to-use Python Database API (DB-API) Modules connect Google Spanner data with Python and any Python-based applications.
Features
Specifications
CData Python connectors in action!
Watch the video overview for a first hand-look at the powerful data integration capabilities included in the CData Python Connectors.
Watch the Python Connector Video OverviewPython connectivity with Google Spanner
Full-featured and consistent SQL access to any supported data source through Python
Connecting to Google Spanner with Python
CData Python Connectors leverage the Database API (DB-API) interface to make it easy to work with Google Spanner from a wide range of standard Python data tools. Connecting to and working with your data in Python follows a basic pattern, regardless of data source:
- Configure the connection properties to Google Spanner
- Query Google Spanner to retrieve or update data
- Connect your Google Spanner data with Python data tools.

Connecting to Google Spanner in Python
To connect to your data from Python, import the extension and create a connection:
Once you import the extension, you can work with all of your enterprise data using the python modules and toolkits that you already know and love, quickly building apps that help you drive business.
import cdata.googlespanner as mod
conn = mod.connect("[email protected]; Password=password;")
#Create cursor and iterate over results
cur = conn.cursor()
cur.execute("SELECT * FROM NewSQLDB")
rs = cur.fetchall()
for row in rs:
print(row)
engine = create_engine("googlespanner///Password=password&User=user")
df = pandas.read_sql("SELECT * FROM NewSQLDB", engine)
df.plot()
plt.show()
Visualize Google Spanner Data with pandas
The data-centric interfaces of the Google Spanner Python Connector make it easy to integrate with popular tools like pandas and SQLAlchemy to visualize data in real-time.
More than read-only: full update/CRUD support
Google Spanner Connector goes beyond read-only functionality to deliver full support for Create, Read Update, and Delete operations (CRUD). Your end-users can interact with the data presented by the Google Spanner Connector as easily as interacting with a database table.
AI-assisted development with CData CLI
Build Google Spanner integrations faster with AI that understands your schema
Schema-aware AI
CData CLI gives AI coding tools access to your Google Spanner schema. No more guessing table names or column types—AI sees the same metadata in your Python Connectors.
Your AI Knows SQL
How to find table names, column names, and how to generate SQL syntax are things that AI knows well from millions of training data. No need for customization, no hallucinations. Your AI acts like a domain specialist to Google Spanner.
More Accurate, More Token-Efficient
With CData CLI's queryable schema detection and highly efficient queries with filters, aggregation, joins with correct pushdown, your AI will achieve more accuracy with less token usage.
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