Remove spurious print from testing pydot interface.
Remove spurious print from testing pydot interface.

jtorrents/networkx,dhimmel/networkx,debsankha/networkx,jni/networkx,debsankha/networkx,aureooms/networkx,jtorrents/networkx,blublud/networkx,nathania/networkx,jni/networkx,dmoliveira/networkx,wasade/networkx,jakevdp/networkx,harlowja/networkx,chrisnatali/networkx,OrkoHunter/networkx,chrisnatali/networkx,bzero/networkx,goulu/networkx,harlowja/networkx,kernc/networkx,aureooms/networkx,kernc/networkx,jakevdp/networkx,ionanrozenfeld/networkx,JamesClough/networkx,ghdk/networkx,kai5263499/networkx,ionanrozenfeld/networkx,harlowja/networkx,ionanrozenfeld/networkx,beni55/networkx,jcurbelo/networkx,RMKD/networkx,ghdk/networkx,RMKD/networkx,sharifulgeo/networkx,farhaanbukhsh/networkx,jfinkels/networkx,jakevdp/networkx,dhimmel/networkx,cmtm/networkx,dmoliveira/networkx,kai5263499/networkx,kai5263499/networkx,nathania/networkx,farhaanbukhsh/networkx,chrisnatali/networkx,bzero/networkx,aureooms/networkx,kernc/networkx,ltiao/networkx,dhimmel/networkx,andnovar/networkx,blublud/networkx,sharifulgeo/networkx,dmoliveira/networkx,jni/networkx,yashu-seth/networkx,tmilicic/networkx,RMKD/networkx,nathania/networkx,sharifulgeo/networkx,bzero/networkx,Sixshaman/networkx,blublud/networkx,debsankha/networkx,SanketDG/networkx,ghdk/networkx,michaelpacer/networkx,NvanAdrichem/networkx,farhaanbukhsh/networkx