AttributeError: 'App' object has no attribute 'open_document'

Expected Behavior

No error

Current Behavior

Receive following error on startup: Traceback (most recent call last): File "_ctypes/callbacks.c", line 232, in 'calling callback function' File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/rubicon/objc/api.py", line 232, in __call__ result = self.py_method(py_self, *args) File "/Users/Me/Documents/Atom/YAPI/toga/src/cocoa/toga_cocoa/app.py", line 63, in application_openFiles_ self.impl.open_document(str(fileURL.absoluteString)) AttributeError: 'App' object has no attribute 'open_document'

Steps to reproduce

1. Download toga from source.

2. Run project on MacOS

Your Environment

• Python Version: 3.7.0

• Operating System and Version:

  • macOS - version: 10.14.3 Beta 18D39a
  • Linux - distro: - version:
  • Windows - version:
  • Other - name: - version:

• Toga Target:

  • android
  • cocoa
  • django
  • gtk
  • iOS
  • tvOS
  • watchOS
  • winforms
  • win32
  • Other (please specify)

[freakboy3742]

Toga now supports python foo.py, python -m foo, and briefcase dev as execution methods.

[worship-together]

Had the same issue with the your first toga app (‘App’ object has no attribute ‘open_document’). Solution in our case is to run the app with python -m. That issue went away. Before doing that, we had to also do the following:

$ git clone https:///github.com/pybee/toga.git $ cd toga $ pip install src/core $ pip install src/cocoa