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release 2.0.1 has qt4-incompatible code in backend_qt5.py #8570

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miketrumpis opened this issue May 4, 2017 · 1 comment
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release 2.0.1 has qt4-incompatible code in backend_qt5.py #8570

miketrumpis opened this issue May 4, 2017 · 1 comment
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@miketrumpis
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Bug report

In tag 2.0.1 the NavigationToolbar2QT includes an unchecked call to a Qt5 feature:

pm.setDevicePixelRatio(self.canvas._dpi_ratio)

https://github.com/matplotlib/matplotlib/blob/v2.0.1/lib/matplotlib/backends/backend_qt5.py#L587-L592

This is strange, b/c it's not there in tag 2.0.0 and it's not there in master!

I can reproduce this with a simple plt.plot(np.random.randn(10)).

AttributeError: 'PySide.QtGui.QPixmap' object has no attribute 'setDevicePixelRatio'

Issue goes away when I revert to 2.0.0
@jenshnielsen
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This is a duplicate of #8565 #8563 and #8562 and will be fixed in 2.0.2 which should be released in the next few days

@efiring efiring mentioned this issue May 8, 2017
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@miketrumpis @QuLogic @jenshnielsen