Remove Qt.py as an external dependancy

[david-cattermole]

Problem

The Qt.py is currently an external dependency, and is currently installed in the PYTHON_PATH globally.

This is not ideal, since our Qt.py version may override or conflict with the currently installed version.

Instead, we should ensure the Qt.py version used in mmSolver is an internal dependency and is installed at import mmSolver.Qt.QtGui as QtGui, rather than outside mmSolver (import Qt.QtGui as QtGui)

Software Versions

This change will be made in a minor version update - not a patch level update.

• mmSolver version: v0.4.0
• Maya version: All
• Operating System (OS): All

[david-cattermole]

As a really good guide on how I should have included Qt.py from the beginning, here is an article;
https://fredrikaverpil.github.io/2017/05/04/vendoring-qt-py/

[david-cattermole]

We've had a bug caused by using an old Qt.py version; #215.

The safest thing to do is include Qt.py inside mmSolver.
I think we should just do it for v0.3.x and change the install process rather than:

a) make our build process more complicated by upgrading to Qt.py 1.2.0 only on Maya 2020, or

b) update to Qt.py for all Maya versions (including older versions).

David

[david-cattermole]

Qt.py has now been embedded into mmSolver at mmSolver.ui.Qt. All files using Qt.py have been updated to the new path, and this has been pushed to the build_issue156 branch, then merged into develop_v0.3.x.

This update will be released in v0.3.14. Closing for now.