mrocklin/Theano — comment on commit 7b90d0efbba1a58d4bb7c88ce76fff4bb2c63dc6
File: theano/tensor/basic.py line 4293
By dwf:

In such situations I usually parenthesize the entire line (to obviate the need for brittle \ line breaks) but yeah, easier to stick to fairly strict pep8 as it's easily auto-verified.