pyplot.savefig: add support for PDF format

[felipeespic]

Hi,

I cannot save a figure in pdf format programmatically. However I can do it from the GUI (sometimes, depending on the type of figure).

Example 1:
pl.plot(np.arange(23))
pl.savefig('fig.pdf')
Out:
AssertionError: Function 'savefig' currently supports the following formats:
bw,eps,epsf,epsi,pcx,rgb,rgba,sgi,tga,bmp,bw,eps,epsf,epsi,ico,jp2,jpeg,jpg,pcx,pic,png,ppm,rgb,rgba,sgi,tga,tif,tiff,webp,xbm,xpm,xv

However, the description of the function pl.savefig says: "Currently supports PDF and PNG formats only"

Example 2:
pl.plot(np.arange(23))
pl.savefig('fig.pdf', format='pdf')
Out:
self.print_(printer)
File "/usr/local/lib/python2.7/dist-packages/guiqwt-3.0.2-py2.7-linux-x86_64.egg/guiqwt/pyplot.py", line 289, in print_ax.widget.print_(paint, QRect(ox, oy, w, h))
TypeError: print_() takes exactly 2 arguments (3 given)

Thanks,
Felipe

[PierreRaybaut]

That would be a feature request.