Wxpython, compiled as executable, for Mac, Win and Ubuntu

We use wxpython 3 with python 2.7, compiled with pyinstaller for both Win and Mac.
We want to upgrade to wxpython 4 with python 3.x and be able to compile to an executable for Mac Win and Ubuntu18.
Is that possible? Anyone has experience with that?

Hello:

Yes, is possible.
In my case:
Python 3.5
wxpython:4.0.1
and pyinstaller
For me work fine.

For all three platforms? That’s great. Would love to hear more info on how to ease this process.

Yes.
Linux (where I develop) and windows yes.
OSX will probably as well, the more likely you are to make some minor adjustments to the application code.