Error using GH Artist when Ladybug is installed

[chenkasirer]

There appears to be some conflict related to COMPAS Artist and the Ladybug plugin.

Steps to reproduce the behavior:

1. Install COMPAS
2. Install Ladybug Tool from here.
3. Open a ghpython component in Grasshopper.
4. Try to draw something with an Artist

For example:

from compas.geometry import Box
from compas.artists import Artist

box = Box.from_width_height_depth(5,5,5)
a = Artist(box).draw()

Which produces the following errors:

C:\Users\ckasirer\ladybug_tools\python\Lib\site-packages\pkg_resources\py2_warn.py:1: UserWarning: Setuptools no longer works on Python 2
************************************************************
Encountered a version of Setuptools that no longer supports
this version of Python. Please head to
https://bit.ly/setuptools-py2-sunset for support.
************************************************************
  import sys

Runtime error (SystemExitException): SystemExit

Traceback:
  line 86, in <module>, "C:\Users\ckasirer\ladybug_tools\python\Lib\site-packages\pkg_resources\__init__.py"
  line 13, in <module>, "C:\Users\ckasirer\AppData\Roaming\McNeel\Rhinoceros\7.0\scripts\compas_ui\rhino\install.py"
  line 13, in <module>, "C:\Users\ckasirer\AppData\Roaming\McNeel\Rhinoceros\7.0\scripts\compas_fofin\rhino\install.py"
  line 423, in try_import, "C:\Users\ckasirer\AppData\Roaming\McNeel\Rhinoceros\7.0\scripts\compas\plugins.py"
  line 191, in load_plugins, "C:\Users\ckasirer\AppData\Roaming\McNeel\Rhinoceros\7.0\scripts\compas\plugins.py"
  line 155, in registry, "C:\Users\ckasirer\AppData\Roaming\McNeel\Rhinoceros\7.0\scripts\compas\plugins.py"
  line 492, in collect_plugins, "C:\Users\ckasirer\AppData\Roaming\McNeel\Rhinoceros\7.0\scripts\compas\plugins.py"
  line 311, in wrapper, "C:\Users\ckasirer\AppData\Roaming\McNeel\Rhinoceros\7.0\scripts\compas\plugins.py"
  line 16, in <module>, "C:\Users\ckasirer\ladybug_tools\python\Lib\site-packages\pkg_resources\py2_warn.py"
  line 97, in __new__, "C:\Users\ckasirer\AppData\Roaming\McNeel\Rhinoceros\7.0\scripts\compas\artists\artist.py"
  line 6, in script

Expected behavior Drawing of the box.

Desktop (please complete the following information):

• OS: Windows 10

Additional context The Ladybug plugin seems to download CPython3.7 and add its site-packages directory to its search path as part of its installation.

[gonzalocasas]

The problem is the plugin system, it's trying to enumerate stuff over site-packages and basically triggering hell.

[chenkasirer]

Do you think there's anything we could do about this or it's fully up to GH plugin behavior? Also why is Ladybug downloading its own instance of python? did you get what's it using it for?

[gonzalocasas]

Fixed on https://github.com/compas-dev/compas/pull/1185