Error in Pango while using cairo/librsvg

[saxi]

I use pyWxSVG to convert a svg file to a png image.
pyWxSVG is svg canvas for wxPython.
View and print svg file or svg content, convert svg to raster
graphics. Open svg, svgz file as wx.Image, use wx.BITMAP_TYPE_SVG,
wx.BITMAP_TYPE_SVGZ type. Partial support svg format. Tested with
Python 2.5 and wxPython 2.8.9.2. Path parser and elliptical arc
approximation from Enable.