How to chain attribute lookups that might return None in Python?

Question

My problem is a general one, how to chain a series of attribute lookups when one of the intermediate ones might return None, but since I ran into this problem t

Answer 1

The most straightforward way is to wrap in a try...except block.

try:
    title = soup.head.title.string
except AttributeError:
    print "Title doesn't exist!"

There's really no reason to test at each level when removing each test would raise the same exception in the failure case. I would consider this idiomatic in Python.