ENH: _lib/ccallback: add signature= argument also to from_cython
ENH: _lib/ccallback: add signature= argument also to from_cython

WarrenWeckesser/scipy,scipy/scipy,gertingold/scipy,grlee77/scipy,befelix/scipy,ilayn/scipy,zerothi/scipy,rgommers/scipy,ilayn/scipy,WarrenWeckesser/scipy,jor-/scipy,e-q/scipy,person142/scipy,jakevdp/scipy,zerothi/scipy,arokem/scipy,lhilt/scipy,WarrenWeckesser/scipy,gertingold/scipy,zerothi/scipy,rgommers/scipy,matthew-brett/scipy,lhilt/scipy,WarrenWeckesser/scipy,dominicelse/scipy,person142/scipy,endolith/scipy,aarchiba/scipy,perimosocordiae/scipy,josephcslater/scipy,josephcslater/scipy,scipy/scipy,aarchiba/scipy,mdhaber/scipy,e-q/scipy,gertingold/scipy,matthew-brett/scipy,Stefan-Endres/scipy,kalvdans/scipy,apbard/scipy,e-q/scipy,gfyoung/scipy,mdhaber/scipy,mdhaber/scipy,nmayorov/scipy,pbrod/scipy,aarchiba/scipy,dominicelse/scipy,pschella/scipy,pizzathief/scipy,Stefan-Endres/scipy,befelix/scipy,aeklant/scipy,Stefan-Endres/scipy,gfyoung/scipy,e-q/scipy,gfyoung/scipy,pschella/scipy,matthew-brett/scipy,Eric89GXL/scipy,andyfaff/scipy,gfyoung/scipy,jor-/scipy,dominicelse/scipy,apbard/scipy,endolith/scipy,aeklant/scipy,josephcslater/scipy,aarchiba/scipy,Eric89GXL/scipy,jamestwebber/scipy,person142/scipy,pbrod/scipy,josephcslater/scipy,pizzathief/scipy,andyfaff/scipy,ilayn/scipy,aeklant/scipy,gfyoung/scipy,pbrod/scipy,gertingold/scipy,e-q/scipy,anntzer/scipy,endolith/scipy,endolith/scipy,ilayn/scipy,person142/scipy,grlee77/scipy,Eric89GXL/scipy,apbard/scipy,WarrenWeckesser/scipy,arokem/scipy,anntzer/scipy,perimosocordiae/scipy,Eric89GXL/scipy,tylerjereddy/scipy,mdhaber/scipy,scipy/scipy,aeklant/scipy,rgommers/scipy,Stefan-Endres/scipy,zerothi/scipy,pbrod/scipy,ilayn/scipy,Stefan-Endres/scipy,vigna/scipy,tylerjereddy/scipy,dominicelse/scipy,andyfaff/scipy,jjhelmus/scipy,mdhaber/scipy,scipy/scipy,jjhelmus/scipy,befelix/scipy,perimosocordiae/scipy,person142/scipy,arokem/scipy,kalvdans/scipy,jakevdp/scipy,arokem/scipy,pschella/scipy,perimosocordiae/scipy,nmayorov/scipy,pizzathief/scipy,mdhaber/scipy,jor-/scipy,Stefan-Endres/scipy,jamestwebber/scipy,pizzathief/scipy,pschella/scipy,Eric89GXL/scipy,josephcslater/scipy,nmayorov/scipy,zerothi/scipy,anntzer/scipy,zerothi/scipy,aarchiba/scipy,vigna/scipy,gertingold/scipy,Eric89GXL/scipy,jor-/scipy,arokem/scipy,vigna/scipy,vigna/scipy,matthew-brett/scipy,kalvdans/scipy,jjhelmus/scipy,lhilt/scipy,perimosocordiae/scipy,nmayorov/scipy,befelix/scipy,apbard/scipy,anntzer/scipy,scipy/scipy,dominicelse/scipy,kalvdans/scipy,pbrod/scipy,jjhelmus/scipy,anntzer/scipy,pbrod/scipy,jamestwebber/scipy,kalvdans/scipy,andyfaff/scipy,tylerjereddy/scipy,jjhelmus/scipy,pizzathief/scipy,grlee77/scipy,rgommers/scipy,endolith/scipy,anntzer/scipy,grlee77/scipy,jor-/scipy,endolith/scipy,apbard/scipy,jamestwebber/scipy,jakevdp/scipy,rgommers/scipy,perimosocordiae/scipy,tylerjereddy/scipy,lhilt/scipy,tylerjereddy/scipy,jakevdp/scipy,jamestwebber/scipy,lhilt/scipy,pschella/scipy,ilayn/scipy,matthew-brett/scipy,aeklant/scipy,scipy/scipy,jakevdp/scipy,vigna/scipy,befelix/scipy,andyfaff/scipy,WarrenWeckesser/scipy,nmayorov/scipy,grlee77/scipy,andyfaff/scipy