[danielheath]

What's the operator precedence in python?

Is it `assert(0 <= (1 < ndim))` or `assert((0 <= 1) < ndim)`, or something even stranger like `assert(0 <= 1) < ndim`?

[__s]

Python actually does something pretty neat: it chains comparisons so that `x < y <= z` is like `x < y and y <= z` except y is only evaluated once

In linked code we can be confident that `0 <= 1`, so only `1 < ndim` should matter. In fact I'd expect peephole optimization to remove most of the code for `0 <= 1`

[3abiton]

I did not know that python fact. Thanks for sharing!