IPython should display things unsorted if it can't sort them

[apatil]

Hi all,

We're having issues when displaying lists of PyMC variables in IPython, pymc-devs/pymc#32 . A simple way to reproduce the problem is as follows. First, define a class with an lt method that can fail:

class test(tuple):
    def __lt__(self, other):
        if len(self) != len(other):
            raise ValueError
        else:
            return self[0] < other[0]


A = test([1,2,3])
B = test([4,5])

Then, try displaying {A: [], B: []} from IPython.

Thanks,
Anand

[takluyver]

It works properly in the development version, but not in 0.10. Since we're hoping to release 0.11 in the next few weeks, it probably won't get fixed in the 0.10 series unless you want to make a pull request for it.

[apatil]

Thanks... this isn't a critical problem, I'm happy to wait.

[takluyver]

OK, excellent. I'm going to close this issue, then.