Change import for depth_first_search
Change import for depth_first_search

--HG--
extra : convert_revision : svn%3A3ed01bd8-26fb-0310-9e4c-ca1a4053419f/networkx/trunk%401593

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