2. Writing views in Python — couchdb-python 1.0 documentation

# 2. Writing views in Python

The couchdb-python package comes with a view server to allow you to write views in Python instead of JavaScript. When couchdb-python is installed, it will install a script called couchpy that runs the view server. To enable this for your CouchDB server, add the following section to local.ini:

    [query_servers]
    python=/usr/bin/couchpy

After restarting CouchDB, the Futon view editor should show `python` in the language pull-down menu. Here’s some sample view code to get you started:

    def fun(doc):
        if doc['date']:
            yield doc['date'], doc

Note that the `map` function uses the Python `yield` keyword to emit values, where JavaScript views use an `emit()` function.