fixing import of new error classes
fixing import of new error classes

gentnerlab/pyoperant,theilmbh/pyoperant,gentnerlab/pyoperant,theilmbh/pyoperant,theilmbh/pyoperant,opyrant/opyrant,gentnerlab/pyoperant,opyrant/opyrant,MarvinT/pyoperant,theilmbh/pyoperant,MarvinT/pyoperant,gentnerlab/pyoperant,MarvinT/pyoperant