pyqtSignal() argument expected to be sequence of types on startup about ryven HOT 7 CLOSED

Okay simply setting environment Variable "QT_API" to "PySide2" works !!

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Works well with conda install

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I get the same Issue with the conda install :(

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At the time OP posted the issue, only the previous version was available on Anaconda (not the --pre one). Now on both pip and conda it's Ryven v3.4.

In the traceback above Python tries to use a PyQt class. Ryven is not compatible with PyQt, it should run on PySide2. Ryven uses qtpy which allows selecting different Qt backends (including PyQt) but Ryven selects the PySide2 backend by default, so if that is not overridden by the user I don't think it's a Ryven issue. You can try to make a new environment and only install Ryven.

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Okay I have it set up to always install numpy scipy and matplotlib into my fresh environments because they are essential for me. Turns out installing matplotlib causes the issues. I would be grateful for a solution!

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in ryven.py

from ryven.gui_env import init_node_guis_env # Qt dependency

comes before

os.environ['QT_API'] = conf.qt_api

which causes the issue. I created a pull request

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