Fix rubberbanding on wx+py3.10.

anntzer · anntzer · commit f5f884b5350f · 2021-12-17T08:02:00.000+01:00
Locally (Arch standard packages), it otherwise fails with

  File "/usr/lib/python3.10/site-packages/wx/core.py", line 1098, in _DC_DrawLineList
    return self._DrawLineList(lines, pens, [])
TypeError: 'numpy.float64' object cannot be interpreted as an integer
diff --git a/lib/matplotlib/backends/backend_wx.py b/lib/matplotlib/backends/backend_wx.py
@@ -618,7 +618,8 @@ def gui_repaint(self, drawDC=None, origin='WX'):
                else self.bitmap)
         drawDC.DrawBitmap(bmp, 0, 0)
         if self._rubberband_rect is not None:
-            x0, y0, x1, y1 = self._rubberband_rect
+            # Some versions of wx+python don't support numpy.float64 here.
+            x0, y0, x1, y1 = map(int, self._rubberband_rect)
             drawDC.DrawLineList(
                 [(x0, y0, x1, y0), (x1, y0, x1, y1),
                  (x0, y0, x0, y1), (x0, y1, x1, y1)],
