Getting Started with Python
If you haven’t set up a Riak Node and started it, please visit Running A Cluster first.
To try this flavor of Riak, a working installation of Python is
required, with Python 2.7 preferred. One of the Python package managers,
e.g. setuptools or pip, is also required to install the client
package.
You may install setuptools on OS X through MacPorts by running sudo
port install py-distribute. setuptools and pip are included in the
Homebrew formula for Python on OS X as well. Just run brew install
python.
Prerequisites
First, you must install some packages needed by the Riak Python client:
python-dev— Header files and a static library for Pythonlibffi-dev— Foreign function interface librarylibssl-dev— libssl and libcrypto development libraries
Ubuntu (12.04 & 14.04)
sudo apt-get install python-dev libffi-dev libssl-dev
Client Setup
The easiest way to install the client is with easy_install or pip.
Either of the commands below will ensure that the client and all its
dependencies are installed and on the load path. Depending on where your
Python libraries are held, these may require sudo.
easy_install riak
pip install riak
To install from source, download the latest Python client from GitHub (zip, GitHub repository), and extract it to your working directory.
Now, let’s build the client.
python setup.py install
Connecting to Riak
Now, let’s start the Python REPL and get set up. Enter the following into the Python REPL:
import riak
If you are using a single local Riak node, use the following to create a new client instance:
myClient = riak.RiakClient(pb_port=8087, protocol='pbc')
# Because the Python client uses the Protocol Buffers interface by
# default, the following will work the same:
myClient = riak.RiakClient(pb_port=8087)
If you set up a local Riak cluster using the [[five-minute install]] method, use this code snippet instead:
myClient = riak.RiakClient(pb_port=10017, protocol='pbc')
We are now ready to start interacting with Riak.