2. Writing views in PythonΒΆ

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.

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