You are working on the mpmath/mpmath repository. The source code is checked out at /testbed at commit…

You are working on the mpmath/mpmath repository. The source code is checked out at /testbed at commit…: a task in SWE-Lego-RL-2699 (Harbor dataset). I expect negative index -n to indicate last n element, like in Python list or numpy array. But I got 0 .

The task

I expect negative index `-n` to indicate last n element, like in Python list or numpy array. But I got `0`.

Part of Lego-X/Lego-RL-2699.