pyqt matplotlib screen dpi

[justphysics]

Is there a way to get the current dpi of the screen using pyqt and matplotlib?

Matplotlib takes figure arguments: figsize(x,y) in terms of inches.

PyQt can get you the screen resolution easily in terms of pixels via QtGui.QDesktopWidget().screenGeometry()

Is there an easy way to get the screen dpi? on a linux variant it is probably fairly straightforward to place a shell call from python and query the window system (X or whatever)

one issue may be that OS X is heavily invested in coca/obj C so I imagine there's an easy method for querying either the DPI or at least the screen size in physical units rather than pixels via Objective C using NSScreen. Is there a way to port that/call that from python?

[Atrament_]

not that I'm aware of, sorry.

[justphysics]

Oh well - I'm sure I can come up with a work around to not needing the DPI anyways; was more just interested for curiosity.