Traceback (most recent call last):


 "/Users/ame/workspace/org.elgert/toga/.venv/bin/toga-demo", line 11, in <module>

sys.exit(run())


 "/Users/ame/workspace/org.elgert/toga/.venv/lib/python3.6/site-packages/toga_demo/__main__.py", line 5, in run

main().main_loop()


 "/Users/ame/workspace/org.elgert/toga/.venv/lib/python3.6/site-packages/toga_cocoa/app.py", line 167, in main_loop

self._startup()


 "/Users/ame/workspace/org.elgert/toga/.venv/lib/python3.6/site-packages/toga_cocoa/app.py", line 95, in _startup

self._impl = NSApplication.sharedApplication()
TypeError: 'ObjCInstance' object is not callable

Traceback (most recent call last):


 "C:\Users\S10500\AppData\Local\Continuum\anaconda3\lib\site-packages\spyder\widgets\ipythonconsole\client.py", line 575, in show_time

elapsed_time = time.monotonic() - self.t0
TypeError: unsupported operand type(s) for -: 'float' and 'NoneType'
