Fix bug in checking minimum version for requsts lib.
Fix bug in checking minimum version for requsts lib.

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