What version of matplotlib are you using? I have a vague recollection that this was fixed at one point.
In any case, you should be able to get around this by casting your filename to a string as such: self.figure.savefig(str(image_file)) Hope that works for you, Mike Jeff Peery wrote: > Hello, > > I’m trying to use savefig in my wx app and I’m using wxAgg backend. I’m > getting this error: > > > > FILE …maplotlib\backends\backend_bases.py, line 397 in print_png > > Self.get_renderer()._renderer.write_png(filename, self.figure.dpi.dpi.get()) > > TypeError: cannot return std::string from Unicode object > > > > I’m simply calling this: > > > > self.figure.savefig(image_file, > > facecolor='w', > > edgecolor='w') > > > > How do I fix this problem? Thanks. > > > > Jeff > > > > > > > > > ------------------------------------------------------------------------ > > ------------------------------------------------------------------------- > This SF.net email is sponsored by: Microsoft > Defy all challenges. Microsoft(R) Visual Studio 2008. > http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ > > > ------------------------------------------------------------------------ > > _______________________________________________ > Matplotlib-users mailing list > Matplotlib-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/matplotlib-users -- Michael Droettboom Science Software Branch Operations and Engineering Division Space Telescope Science Institute Operated by AURA for NASA ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
