Skip to main content

Cassandra Query Language driver

Project description

A Python driver for CQL that adheres to py-dbapi v2
(PEP249, Python Database API Specification v2.0:

Standard use:
>> import cql
>> con = cql.connect(host, port, keyspace)
>> cursor = con.cursor()
>> cursor.execute("CQL QUERY", dict(kw='Foo', kw2='Bar, etc...))

- cursor.description # None initially, list of N tuples that represent
the N columns in a row after an execute. Only
contains type and name info, not values.
- cursor.rowcount # -1 initially, N after an execute
- cursor.arraysize # variable size of a fetchmany call
- cursor.fetchone() # returns a single row
- cursor.fetchmany() # returns self.arraysize # of rows
- cursor.fetchall() # returns all rows, don't do this.

>> cursor.execute("ANOTHER QUERY", **more_kwargs)
>> for row in cursor: # Iteration is equivalent to lots of fetchone() calls
>> doRowMagic(row)

>> cursor.close()
>> con.close()

Query substitution:
- Use named parameters and a dictionary of names and values.
e.g. execute("SELECT * FROM CF WHERE name=:name", {"name": "Foo"})

Project details

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

cql-1.1.0.tar.gz (64.6 kB view hashes)

Uploaded Source

Supported by

AWS AWS Cloud computing and Security Sponsor Datadog Datadog Monitoring Fastly Fastly CDN Google Google Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Sentry Sentry Error logging StatusPage StatusPage Status page