Fix pyside2uic.UIParser on Python 3.9

[n-elie]

Patch UIParser.readResources to make it works with Python 3.9. Without this patch, we get this error:

Traceback (most recent call last): File "simple.py", line 12, in MainWindowUI, MainWindowBase = uic.loadUiType(UI_FILE) File "\Miniconda3\envs\pysideads\lib\site-packages\qtpy\uic.py", line 271, in loadUiType compileUi(fd, code_stream, indent=0, from_imports=from_imports) File "\Miniconda3\envs\pysideads\lib\site-packages\pyside2uic__init__.py", line 144, in compileUi winfo = ui_comp.compileUi(uifile, pyfile, from_imports) File "\Miniconda3\envs\pysideads\lib\site-packages\pyside2uic\Compiler\compiler.py", line 91, in compileUi w = self.parse(input_stream) File "\Miniconda3\envs\pysideads\lib\site-packages\pyside2uic\uiparser.py", line 882, in parse actor(elem) File "\Miniconda3\envs\pysideads\lib\site-packages\qtpy\uic.py", line 253, in readResources elem.getiterator = elem.iter AttributeError: 'xml.etree.ElementTree.Element' object has no attribute 'getiterator'

Methods getchildren() and getiterator() of classes ElementTree and Element in the ElementTree module have been removed. They were deprecated in Python 3.2. Use iter(x) or list(x) instead of x.getchildren() and x.iter() or list(x.iter()) instead of x.getiterator(). (Contributed by Serhiy Storchaka in bpo-36543.)

https://docs.python.org/3.9/whatsnew/3.9.html#removed

Checklist

• [x] Used a personal fork of the feedstock to propose changes
• [x] Bumped the build number (if the version is unchanged)
• [x] Reset the build number to 0 (if the version changed)
• [x] Re-rendered with the latest conda-smithy (Use the phrase code>@<space/conda-forge-admin, please rerender in a comment in this PR for automated rerendering)
• [x] Ensured the license file is being packaged.

[conda-forge-linter]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipe) and found it was in an excellent condition.

[n-elie]

This patch is also needed for 'pyside2-uic' command to work properly. Without it, the following error occurs and import needed for resources loading and custom widgets are not written at the end of the file:

Check that you are using the latest version of PySide2 and report the error to
http://bugs.openbossa.org, including the ui file used to trigger the error.```

[n-elie]

@conda-forge-admin, please rerender

[n-elie]

Ready for review. This PR also fixes build on Windows by relocating libpyside build to sources/PySide2 (See #99). Not sure why it is needed And it fixes a problem with QToolButton.setMenu which was not keeping a reference of the menu.

[n-elie]

Hello,

Is there something wrong with this PR? I personally need pyside-uic to work properly.

Regards

[jan-janssen]

Hello,

Is there something wrong with this PR? I personally need pyside-uic to work properly.

Regards

It failed on Mac OS X

[jan-janssen]

@conda-forge-admin, please rerender

[n-elie]

It was working well before I rerendered

[jan-janssen]

@conda-forge-admin, please restart ci

[n-elie]

This time all checks have passed

[n-elie]

Thanks for your help

[hmaarrfk]

did this really fix anything? it seems like things are still broken.

[n-elie]

What is still broken exactly?

[hmaarrfk]

Sorry, i think i had an other conflict in one of my packages and the conda solver seemed to point me around in circles. Eventually, I was able to plug in the libmamba solver, but it wasn't as straightforward as I would have liked.

Thank you for your response.