This library is released to PyPI, so the easiest way to install it is to use easy_install:
pip install wolframalpha
If you don't have these tools or you prefer not to use setuptools, you may also simply extract the 'wolframalpha' directory an appropriate location in your Python path.
Basic usage is pretty simple. Create the client with your App ID (request from Wolfram Alpha):
import wolframalpha client = wolframalpha.Client(app_id)
Then, you can send queries, which return Result objects:
res = client.query('temperature in Washington, DC on October 3, 2012')
Result objects have pods attribute (a Pod is an answer from Wolfram Alpha):
for pod in res.pods: do_something_with(pod)
You may also query for simply the pods which have 'Result' titles:
For more information, read the source.