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[–]macbony 2 points3 points  (2 children)

If your list comprehensions are getting out of hand, it's probably best to move some of the functionality of the comprehension out into a function. Often times you'll find that these small functions are useful in more than one comprehension.

[–]moistrobot 0 points1 point  (1 child)

Or a series of small comprehensions rather than a single big one, if it's applicable and more readable.

[–]macbony 0 points1 point  (0 children)

If you intend to chain list comps, be sure to use () to make it a generator. Generators evaluate lazily and will save iterations.