Traceback (most recent call last):


 "/Users/igortkachenko/Tools/kivy-designer/venv/lib/python3.6/site-packages/kivy/uix/widget.py", line 265, in _widget_destructor


 "/Users/igortkachenko/Tools/kivy-designer/venv/lib/python3.6/site-packages/kivy/lang/builder.py", line 760, in unbind_widget


 "kivy/weakproxy.pyx", line 30, in kivy.weakproxy.WeakProxy.__getattr__
AttributeError: 'weakref' object has no attribute 'cline_in_traceback'

Traceback (most recent call last):


 "/home/docs/checkouts/readthedocs.org/user_builds/eplusga/envs/latest/lib/python3.6/site-packages/sphinx/ext/autodoc/importer.py", line 152, in import_module

__import__(modname)


 "/home/docs/checkouts/readthedocs.org/user_builds/eplusga/checkouts/latest/eplus_ga/evaluator.py", line 14, in <module>

from problem import Problem


 "/home/docs/checkouts/readthedocs.org/user_builds/eplusga/checkouts/latest/eplus_ga/problem.py", line 13, in <module>

class Problem:


 "/home/docs/checkouts/readthedocs.org/user_builds/eplusga/checkouts/latest/eplus_ga/problem.py", line 139, in Problem

def to_platypus(self) -> platypus.Problem:
AttributeError: module 'platypus' has no attribute 'Problem'`
