Kevin

Hi, first of all, thank you for releasing your code. I just found a small bug in errorify/error.py - in the function [readn](https://github.com/awasthiabhijeet/PIE/blob/2975a6cb3d3ecccddee21d3a0fc094155550dddb/errorify/error.py#L41) at line 53, the extra "yield clist"...