Fix xfunc and rpc environment activation

[gonzalocasas]

Conda environments need to add some things to the PATH when activated, at least on Windows. This fixes it for XFunc and RPC calls (report on Forum).

What type of change is this?

• Bug fix in a backwards-compatible manner.
• New feature in a backwards-compatible manner.
• Breaking change: bug fix or new feature that involve incompatible API changes.

Checklist

1. Add the change to the CHANGELOG.md file.
2. Run all tests on your computer (i.e. invoke test).

[gonzalocasas]

I think this is required to be released before Wednesday's compas_fea workshop, because some participants already have the requirements installed in an conda environment.

[tomvanmele]

• NotADirectoryError does not exist in Python 2.7 (at least not on Mac).
• Tried a fresh rpc environment and RhinoMac seems to be able to find the correct Python
• For now on Mac (because of Matplotlib) the command to install and uninstall should be pythonw -m compas_rhino.xxx
• it seems that on mac the equivalent of PYTHON_DIRECTORY, 'Library', 'bin' would have to be PYTHON_DIRECTORY, 'lib'
• To add environment variables, the equivalent using the Windows Process.StartInfo would be self._process.StartInfo.EnvironmentVariables = env

[gonzalocasas]

NotADirectoryError does not exist in Python 2.7 (at least not on Mac).

where do you see that one? did i add it now?

For now on Mac (because of Matplotlib) the command to install and uninstall should be pythonw -m compas_rhino.xxx

Before changing that, I would ask why does matplotlib play a role when installing for rhino? Do you have one import too many somewhere?

it seems that on mac the equivalent of PYTHON_DIRECTORY, 'Library', 'bin' would have to be PYTHON_DIRECTORY, 'lib'

thx, I wasn't sure and I didn't have a mac to test, I'll add it.

To add environment variables, the equivalent using the Windows Process.StartInfo would be self._process.StartInfo.EnvironmentVariables = env

thx! will add that

[tomvanmele]

you are right about the plotters. they should not have an effect on this process.

andrew's devo stuff imports matplotlib for some implicit plotting which should be handled through a callback. will ask him to change that...

the NotADirectoryError is part of the remove_symlink function. apparently i had never run in to that problem in a py2-based environment before...