conditional_deferred.py

@inlineCallbacks
def do_something():
    data = yield get(url)
    if 'some val' in data.content:
        data = yield get(another_url)
    defer.returnValue(data)
    
    
# Is this the equivalent way of describing this with regular callbacks?

def do_something():
    return get(url)
    
def maybe_do_another_thing(response):
    if 'some val' in response:
        return get(another_url)
    return response
    
d = do_something()
d.addCallback(maybe_do_another_thing)