Use ValueError instead of assert statement.
Use ValueError instead of assert statement.

anntzer/scipy,Stefan-Endres/scipy,mdhaber/scipy,Eric89GXL/scipy,anntzer/scipy,rgommers/scipy,anntzer/scipy,ilayn/scipy,zerothi/scipy,matthew-brett/scipy,endolith/scipy,WarrenWeckesser/scipy,vigna/scipy,mdhaber/scipy,Stefan-Endres/scipy,andyfaff/scipy,vigna/scipy,Stefan-Endres/scipy,pizzathief/scipy,e-q/scipy,Eric89GXL/scipy,ilayn/scipy,endolith/scipy,e-q/scipy,grlee77/scipy,ilayn/scipy,anntzer/scipy,zerothi/scipy,vigna/scipy,tylerjereddy/scipy,grlee77/scipy,nmayorov/scipy,rgommers/scipy,scipy/scipy,perimosocordiae/scipy,perimosocordiae/scipy,pizzathief/scipy,andyfaff/scipy,endolith/scipy,andyfaff/scipy,matthew-brett/scipy,scipy/scipy,e-q/scipy,mdhaber/scipy,nmayorov/scipy,e-q/scipy,zerothi/scipy,andyfaff/scipy,Stefan-Endres/scipy,grlee77/scipy,mdhaber/scipy,scipy/scipy,scipy/scipy,Eric89GXL/scipy,Stefan-Endres/scipy,perimosocordiae/scipy,scipy/scipy,pizzathief/scipy,vigna/scipy,ilayn/scipy,rgommers/scipy,mdhaber/scipy,ilayn/scipy,pizzathief/scipy,matthew-brett/scipy,mdhaber/scipy,vigna/scipy,Eric89GXL/scipy,nmayorov/scipy,pizzathief/scipy,perimosocordiae/scipy,rgommers/scipy,perimosocordiae/scipy,tylerjereddy/scipy,tylerjereddy/scipy,matthew-brett/scipy,WarrenWeckesser/scipy,anntzer/scipy,endolith/scipy,perimosocordiae/scipy,WarrenWeckesser/scipy,andyfaff/scipy,zerothi/scipy,rgommers/scipy,endolith/scipy,WarrenWeckesser/scipy,tylerjereddy/scipy,scipy/scipy,grlee77/scipy,andyfaff/scipy,zerothi/scipy,nmayorov/scipy,zerothi/scipy,WarrenWeckesser/scipy,Eric89GXL/scipy,e-q/scipy,Eric89GXL/scipy,tylerjereddy/scipy,WarrenWeckesser/scipy,ilayn/scipy,endolith/scipy,nmayorov/scipy,grlee77/scipy,Stefan-Endres/scipy,matthew-brett/scipy,anntzer/scipy