Fix doctest again.
Fix doctest again.

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