BUG: in np.isnan call, catch NotImplementedError
BUG: in np.isnan call, catch NotImplementedError

Apparently older versions ef numpy raised a NotImplementedError rather
than a TypeError when calling np.isnan on a character variable. So we
catch both.

This was causing the CI tests to fail for python2.6.

mdhaber/scipy,josephcslater/scipy,grlee77/scipy,pbrod/scipy,woodscn/scipy,aarchiba/scipy,jor-/scipy,kleskjr/scipy,scipy/scipy,jjhelmus/scipy,dominicelse/scipy,jor-/scipy,andyfaff/scipy,Eric89GXL/scipy,haudren/scipy,lhilt/scipy,jor-/scipy,aarchiba/scipy,gfyoung/scipy,woodscn/scipy,Newman101/scipy,woodscn/scipy,aeklant/scipy,rgommers/scipy,zerothi/scipy,endolith/scipy,kalvdans/scipy,anielsen001/scipy,surhudm/scipy,pyramania/scipy,chatcannon/scipy,nmayorov/scipy,maniteja123/scipy,gertingold/scipy,nonhermitian/scipy,e-q/scipy,sriki18/scipy,matthewalbani/scipy,chatcannon/scipy,argriffing/scipy,gdooper/scipy,mikebenfield/scipy,chatcannon/scipy,dominicelse/scipy,gfyoung/scipy,woodscn/scipy,kleskjr/scipy,matthewalbani/scipy,jjhelmus/scipy,grlee77/scipy,matthew-brett/scipy,haudren/scipy,bkendzior/scipy,Gillu13/scipy,WarrenWeckesser/scipy,sriki18/scipy,tylerjereddy/scipy,Eric89GXL/scipy,gfyoung/scipy,larsmans/scipy,befelix/scipy,chatcannon/scipy,scipy/scipy,mikebenfield/scipy,rgommers/scipy,e-q/scipy,Gillu13/scipy,ilayn/scipy,perimosocordiae/scipy,aeklant/scipy,befelix/scipy,surhudm/scipy,argriffing/scipy,gertingold/scipy,nonhermitian/scipy,anntzer/scipy,endolith/scipy,gdooper/scipy,ilayn/scipy,haudren/scipy,pyramania/scipy,Stefan-Endres/scipy,jjhelmus/scipy,e-q/scipy,nonhermitian/scipy,tylerjereddy/scipy,surhudm/scipy,anntzer/scipy,pschella/scipy,matthew-brett/scipy,apbard/scipy,vigna/scipy,arokem/scipy,rgommers/scipy,lhilt/scipy,nonhermitian/scipy,perimosocordiae/scipy,pschella/scipy,scipy/scipy,kleskjr/scipy,Stefan-Endres/scipy,endolith/scipy,vigna/scipy,gdooper/scipy,lhilt/scipy,haudren/scipy,aeklant/scipy,Gillu13/scipy,sriki18/scipy,argriffing/scipy,endolith/scipy,person142/scipy,bkendzior/scipy,pizzathief/scipy,niknow/scipy,maniteja123/scipy,matthewalbani/scipy,jamestwebber/scipy,gfyoung/scipy,jjhelmus/scipy,niknow/scipy,Eric89GXL/scipy,jamestwebber/scipy,jakevdp/scipy,apbard/scipy,pizzathief/scipy,dominicelse/scipy,kalvdans/scipy,kalvdans/scipy,larsmans/scipy,befelix/scipy,matthewalbani/scipy,zerothi/scipy,perimosocordiae/scipy,vigna/scipy,surhudm/scipy,anntzer/scipy,tylerjereddy/scipy,Stefan-Endres/scipy,kleskjr/scipy,jakevdp/scipy,e-q/scipy,dominicelse/scipy,pbrod/scipy,apbard/scipy,lhilt/scipy,gdooper/scipy,rgommers/scipy,mdhaber/scipy,anielsen001/scipy,andyfaff/scipy,anielsen001/scipy,nmayorov/scipy,pbrod/scipy,Eric89GXL/scipy,maniteja123/scipy,kalvdans/scipy,ilayn/scipy,maniteja123/scipy,anntzer/scipy,mdhaber/scipy,behzadnouri/scipy,jor-/scipy,matthewalbani/scipy,surhudm/scipy,gertingold/scipy,gfyoung/scipy,sriki18/scipy,andyfaff/scipy,mdhaber/scipy,arokem/scipy,Eric89GXL/scipy,person142/scipy,behzadnouri/scipy,tylerjereddy/scipy,larsmans/scipy,zerothi/scipy,behzadnouri/scipy,grlee77/scipy,josephcslater/scipy,Newman101/scipy,larsmans/scipy,grlee77/scipy,woodscn/scipy,Gillu13/scipy,person142/scipy,woodscn/scipy,matthew-brett/scipy,bkendzior/scipy,josephcslater/scipy,andyfaff/scipy,pizzathief/scipy,sriki18/scipy,anielsen001/scipy,aeklant/scipy,Stefan-Endres/scipy,niknow/scipy,chatcannon/scipy,argriffing/scipy,Stefan-Endres/scipy,Newman101/scipy,scipy/scipy,anntzer/scipy,person142/scipy,WarrenWeckesser/scipy,kleskjr/scipy,niknow/scipy,niknow/scipy,jakevdp/scipy,gertingold/scipy,perimosocordiae/scipy,WarrenWeckesser/scipy,bkendzior/scipy,vigna/scipy,anielsen001/scipy,sriki18/scipy,niknow/scipy,surhudm/scipy,kalvdans/scipy,anntzer/scipy,matthew-brett/scipy,argriffing/scipy,Gillu13/scipy,perimosocordiae/scipy,aarchiba/scipy,pyramania/scipy,perimosocordiae/scipy,ilayn/scipy,scipy/scipy,maniteja123/scipy,Newman101/scipy,jamestwebber/scipy,nmayorov/scipy,zerothi/scipy,endolith/scipy,aeklant/scipy,chatcannon/scipy,endolith/scipy,andyfaff/scipy,gertingold/scipy,tylerjereddy/scipy,Newman101/scipy,matthew-brett/scipy,behzadnouri/scipy,nonhermitian/scipy,jakevdp/scipy,mdhaber/scipy,pbrod/scipy,gdooper/scipy,pschella/scipy,Eric89GXL/scipy,Gillu13/scipy,jamestwebber/scipy,arokem/scipy,larsmans/scipy,pizzathief/scipy,ilayn/scipy,argriffing/scipy,pizzathief/scipy,behzadnouri/scipy,apbard/scipy,zerothi/scipy,ilayn/scipy,befelix/scipy,haudren/scipy,zerothi/scipy,WarrenWeckesser/scipy,josephcslater/scipy,WarrenWeckesser/scipy,dominicelse/scipy,pschella/scipy,jamestwebber/scipy,person142/scipy,pschella/scipy,pyramania/scipy,behzadnouri/scipy,arokem/scipy,bkendzior/scipy,mdhaber/scipy,jor-/scipy,aarchiba/scipy,befelix/scipy,pbrod/scipy,kleskjr/scipy,Newman101/scipy,vigna/scipy,mikebenfield/scipy,e-q/scipy,apbard/scipy,scipy/scipy,larsmans/scipy,pyramania/scipy,josephcslater/scipy,grlee77/scipy,lhilt/scipy,nmayorov/scipy,nmayorov/scipy,Stefan-Endres/scipy,aarchiba/scipy,maniteja123/scipy,andyfaff/scipy,anielsen001/scipy,haudren/scipy,mikebenfield/scipy,mikebenfield/scipy,rgommers/scipy,jakevdp/scipy,jjhelmus/scipy,WarrenWeckesser/scipy,arokem/scipy,pbrod/scipy