Maintain copyright sanity in Python-related files
Maintain copyright sanity in Python-related files

tengyifei/grpc,makdharma/grpc,LuminateWireless/grpc,geffzhang/grpc,perumaalgoog/grpc,thinkerou/grpc,VcamX/grpc,ppietrasa/grpc,dklempner/grpc,miselin/grpc,donnadionne/grpc,thinkerou/grpc,leifurhauks/grpc,a11r/grpc,ppietrasa/grpc,wcevans/grpc,andrewpollock/grpc,mehrdada/grpc,yugui/grpc,kpayson64/grpc,jcanizales/grpc,PeterFaiman/ruby-grpc-minimal,soltanmm/grpc,apolcyn/grpc,kpayson64/grpc,goldenbull/grpc,a11r/grpc,ejona86/grpc,jboeuf/grpc,ananthonline/grpc,quizlet/grpc,apolcyn/grpc,firebase/grpc,perumaalgoog/grpc,infinit/grpc,philcleveland/grpc,fuchsia-mirror/third_party-grpc,royalharsh/grpc,yang-g/grpc,hstefan/grpc,donnadionne/grpc,baylabs/grpc,msmania/grpc,firebase/grpc,thinkerou/grpc,royalharsh/grpc,arkmaxim/grpc,Vizerai/grpc,wcevans/grpc,thunderboltsid/grpc,goldenbull/grpc,vjpai/grpc,carl-mastrangelo/grpc,miselin/grpc,vjpai/grpc,daniel-j-born/grpc,stanley-cheung/grpc,daniel-j-born/grpc,matt-kwong/grpc,podsvirov/grpc,pmarks-net/grpc,kriswuollett/grpc,tamihiro/grpc,adelez/grpc,vjpai/grpc,matt-kwong/grpc,dgquintas/grpc,apolcyn/grpc,thunderboltsid/grpc,baylabs/grpc,sreecha/grpc,infinit/grpc,grpc/grpc,muxi/grpc,Crevil/grpc,leifurhauks/grpc,y-zeng/grpc,pmarks-net/grpc,ctiller/grpc,arkmaxim/grpc,carl-mastrangelo/grpc,yugui/grpc,yongni/grpc,grani/grpc,a-veitch/grpc,quizlet/grpc,infinit/grpc,thinkerou/grpc,mehrdada/grpc,infinit/grpc,y-zeng/grpc,grani/grpc,carl-mastrangelo/grpc,PeterFaiman/ruby-grpc-minimal,PeterFaiman/ruby-grpc-minimal,ejona86/grpc,malexzx/grpc,jboeuf/grpc,LuminateWireless/grpc,royalharsh/grpc,arkmaxim/grpc,PeterFaiman/ruby-grpc-minimal,simonkuang/grpc,royalharsh/grpc,kskalski/grpc,grani/grpc,jboeuf/grpc,a11r/grpc,VcamX/grpc,perumaalgoog/grpc,murgatroid99/grpc,jcanizales/grpc,podsvirov/grpc,stanley-cheung/grpc,pszemus/grpc,kskalski/grpc,grpc/grpc,thinkerou/grpc,MakMukhi/grpc,wcevans/grpc,LuminateWireless/grpc,y-zeng/grpc,zhimingxie/grpc,royalharsh/grpc,LuminateWireless/grpc,grani/grpc,chrisdunelm/grpc,arkmaxim/grpc,msiedlarek/grpc,pmarks-net/grpc,bogdandrutu/grpc,pszemus/grpc,PeterFaiman/ruby-grpc-minimal,ipylypiv/grpc,fuchsia-mirror/third_party-grpc,ppietrasa/grpc,soltanmm-google/grpc,malexzx/grpc,tamihiro/grpc,Crevil/grpc,adelez/grpc,dgquintas/grpc,LuminateWireless/grpc,donnadionne/grpc,adelez/grpc,muxi/grpc,Vizerai/grpc,ncteisen/grpc,VcamX/grpc,sreecha/grpc,philcleveland/grpc,kskalski/grpc,jboeuf/grpc,arkmaxim/grpc,vsco/grpc,goldenbull/grpc,yongni/grpc,daniel-j-born/grpc,ncteisen/grpc,rjshade/grpc,kskalski/grpc,nicolasnoble/grpc,firebase/grpc,ejona86/grpc,ananthonline/grpc,bogdandrutu/grpc,bogdandrutu/grpc,ncteisen/grpc,MakMukhi/grpc,Vizerai/grpc,soltanmm/grpc,fuchsia-mirror/third_party-grpc,nicolasnoble/grpc,ncteisen/grpc,hstefan/grpc,ejona86/grpc,ananthonline/grpc,ipylypiv/grpc,makdharma/grpc,kskalski/grpc,fuchsia-mirror/third_party-grpc,goldenbull/grpc,tamihiro/grpc,yugui/grpc,Vizerai/grpc,simonkuang/grpc,kpayson64/grpc,geffzhang/grpc,jtattermusch/grpc,apolcyn/grpc,hstefan/grpc,soltanmm/grpc,7anner/grpc,ncteisen/grpc,dklempner/grpc,stanley-cheung/grpc,jtattermusch/grpc,ipylypiv/grpc,msiedlarek/grpc,dgquintas/grpc,deepaklukose/grpc,firebase/grpc,kriswuollett/grpc,geffzhang/grpc,jboeuf/grpc,yongni/grpc,dgquintas/grpc,stanley-cheung/grpc,ppietrasa/grpc,rjshade/grpc,a-veitch/grpc,a-veitch/grpc,royalharsh/grpc,miselin/grpc,Crevil/grpc,kriswuollett/grpc,hstefan/grpc,daniel-j-born/grpc,goldenbull/grpc,murgatroid99/grpc,thunderboltsid/grpc,wcevans/grpc,vjpai/grpc,malexzx/grpc,podsvirov/grpc,ipylypiv/grpc,carl-mastrangelo/grpc,LuminateWireless/grpc,jcanizales/grpc,fuchsia-mirror/third_party-grpc,thinkerou/grpc,muxi/grpc,podsvirov/grpc,mehrdada/grpc,jtattermusch/grpc,vsco/grpc,tamihiro/grpc,vsco/grpc,kpayson64/grpc,stanley-cheung/grpc,simonkuang/grpc,hstefan/grpc,pmarks-net/grpc,stanley-cheung/grpc,malexzx/grpc,kumaralokgithub/grpc,y-zeng/grpc,donnadionne/grpc,kriswuollett/grpc,msiedlarek/grpc,soltanmm-google/grpc,apolcyn/grpc,jboeuf/grpc,murgatroid99/grpc,goldenbull/grpc,perumaalgoog/grpc,grpc/grpc,grpc/grpc,msmania/grpc,dgquintas/grpc,MakMukhi/grpc,chrisdunelm/grpc,a-veitch/grpc,fuchsia-mirror/third_party-grpc,apolcyn/grpc,miselin/grpc,ctiller/grpc,royalharsh/grpc,murgatroid99/grpc,PeterFaiman/ruby-grpc-minimal,adelez/grpc,kriswuollett/grpc,pszemus/grpc,PeterFaiman/ruby-grpc-minimal,nicolasnoble/grpc,jboeuf/grpc,a11r/grpc,andrewpollock/grpc,carl-mastrangelo/grpc,tamihiro/grpc,fuchsia-mirror/third_party-grpc,grani/grpc,7anner/grpc,hstefan/grpc,zhimingxie/grpc,firebase/grpc,kpayson64/grpc,grani/grpc,sreecha/grpc,ejona86/grpc,sreecha/grpc,yongni/grpc,ctiller/grpc,MakMukhi/grpc,vsco/grpc,zhimingxie/grpc,soltanmm-google/grpc,donnadionne/grpc,firebase/grpc,muxi/grpc,adelez/grpc,dklempner/grpc,y-zeng/grpc,thinkerou/grpc,muxi/grpc,baylabs/grpc,Vizerai/grpc,soltanmm-google/grpc,greasypizza/grpc,donnadionne/grpc,zhimingxie/grpc,malexzx/grpc,murgatroid99/grpc,yugui/grpc,daniel-j-born/grpc,nicolasnoble/grpc,msmania/grpc,ncteisen/grpc,ipylypiv/grpc,rjshade/grpc,mehrdada/grpc,infinit/grpc,MakMukhi/grpc,yang-g/grpc,podsvirov/grpc,andrewpollock/grpc,matt-kwong/grpc,ananthonline/grpc,y-zeng/grpc,daniel-j-born/grpc,carl-mastrangelo/grpc,murgatroid99/grpc,kriswuollett/grpc,kumaralokgithub/grpc,tamihiro/grpc,ananthonline/grpc,pszemus/grpc,ncteisen/grpc,pszemus/grpc,tengyifei/grpc,nicolasnoble/grpc,a-veitch/grpc,mehrdada/grpc,makdharma/grpc,tengyifei/grpc,PeterFaiman/ruby-grpc-minimal,PeterFaiman/ruby-grpc-minimal,chrisdunelm/grpc,mehrdada/grpc,stanley-cheung/grpc,grpc/grpc,vjpai/grpc,stanley-cheung/grpc,andrewpollock/grpc,makdharma/grpc,arkmaxim/grpc,mehrdada/grpc,leifurhauks/grpc,VcamX/grpc,hstefan/grpc,apolcyn/grpc,7anner/grpc,infinit/grpc,jcanizales/grpc,donnadionne/grpc,ppietrasa/grpc,ppietrasa/grpc,vsco/grpc,malexzx/grpc,dklempner/grpc,ananthonline/grpc,msiedlarek/grpc,greasypizza/grpc,jboeuf/grpc,makdharma/grpc,firebase/grpc,baylabs/grpc,dgquintas/grpc,ncteisen/grpc,matt-kwong/grpc,kskalski/grpc,matt-kwong/grpc,pszemus/grpc,zhimingxie/grpc,yang-g/grpc,jboeuf/grpc,miselin/grpc,MakMukhi/grpc,simonkuang/grpc,carl-mastrangelo/grpc,greasypizza/grpc,msmania/grpc,wcevans/grpc,apolcyn/grpc,VcamX/grpc,kskalski/grpc,kpayson64/grpc,jcanizales/grpc,philcleveland/grpc,ctiller/grpc,carl-mastrangelo/grpc,greasypizza/grpc,baylabs/grpc,msmania/grpc,daniel-j-born/grpc,y-zeng/grpc,LuminateWireless/grpc,infinit/grpc,perumaalgoog/grpc,Vizerai/grpc,dgquintas/grpc,geffzhang/grpc,ctiller/grpc,ananthonline/grpc,makdharma/grpc,quizlet/grpc,chrisdunelm/grpc,msmania/grpc,sreecha/grpc,miselin/grpc,goldenbull/grpc,jboeuf/grpc,LuminateWireless/grpc,donnadionne/grpc,deepaklukose/grpc,kumaralokgithub/grpc,greasypizza/grpc,yugui/grpc,ctiller/grpc,yongni/grpc,mehrdada/grpc,soltanmm-google/grpc,deepaklukose/grpc,kriswuollett/grpc,7anner/grpc,muxi/grpc,tamihiro/grpc,adelez/grpc,rjshade/grpc,kpayson64/grpc,baylabs/grpc,matt-kwong/grpc,thunderboltsid/grpc,dklempner/grpc,pmarks-net/grpc,kskalski/grpc,geffzhang/grpc,7anner/grpc,malexzx/grpc,yang-g/grpc,a11r/grpc,yang-g/grpc,ncteisen/grpc,vsco/grpc,vjpai/grpc,baylabs/grpc,stanley-cheung/grpc,deepaklukose/grpc,ncteisen/grpc,adelez/grpc,greasypizza/grpc,chrisdunelm/grpc,kpayson64/grpc,grpc/grpc,perumaalgoog/grpc,soltanmm-google/grpc,thunderboltsid/grpc,thinkerou/grpc,ncteisen/grpc,ncteisen/grpc,daniel-j-born/grpc,Crevil/grpc,jtattermusch/grpc,sreecha/grpc,soltanmm/grpc,quizlet/grpc,pmarks-net/grpc,y-zeng/grpc,mehrdada/grpc,philcleveland/grpc,thinkerou/grpc,perumaalgoog/grpc,ejona86/grpc,matt-kwong/grpc,geffzhang/grpc,sreecha/grpc,vjpai/grpc,arkmaxim/grpc,yongni/grpc,firebase/grpc,geffzhang/grpc,dklempner/grpc,quizlet/grpc,tengyifei/grpc,ipylypiv/grpc,zhimingxie/grpc,grani/grpc,msiedlarek/grpc,philcleveland/grpc,vjpai/grpc,VcamX/grpc,carl-mastrangelo/grpc,VcamX/grpc,nicolasnoble/grpc,carl-mastrangelo/grpc,msiedlarek/grpc,a-veitch/grpc,jcanizales/grpc,perumaalgoog/grpc,deepaklukose/grpc,grpc/grpc,ctiller/grpc,simonkuang/grpc,mehrdada/grpc,kumaralokgithub/grpc,andrewpollock/grpc,nicolasnoble/grpc,philcleveland/grpc,kumaralokgithub/grpc,vsco/grpc,nicolasnoble/grpc,muxi/grpc,royalharsh/grpc,murgatroid99/grpc,thunderboltsid/grpc,pmarks-net/grpc,thunderboltsid/grpc,pszemus/grpc,ejona86/grpc,kumaralokgithub/grpc,nicolasnoble/grpc,kumaralokgithub/grpc,kpayson64/grpc,ananthonline/grpc,rjshade/grpc,chrisdunelm/grpc,grani/grpc,rjshade/grpc,a-veitch/grpc,7anner/grpc,y-zeng/grpc,simonkuang/grpc,jcanizales/grpc,arkmaxim/grpc,adelez/grpc,fuchsia-mirror/third_party-grpc,jtattermusch/grpc,leifurhauks/grpc,tengyifei/grpc,donnadionne/grpc,makdharma/grpc,andrewpollock/grpc,goldenbull/grpc,tamihiro/grpc,VcamX/grpc,dklempner/grpc,ctiller/grpc,chrisdunelm/grpc,geffzhang/grpc,greasypizza/grpc,ejona86/grpc,grpc/grpc,LuminateWireless/grpc,dklempner/grpc,Vizerai/grpc,yongni/grpc,kriswuollett/grpc,quizlet/grpc,grpc/grpc,vsco/grpc,deepaklukose/grpc,donnadionne/grpc,ctiller/grpc,jcanizales/grpc,ppietrasa/grpc,msmania/grpc,ejona86/grpc,yongni/grpc,royalharsh/grpc,leifurhauks/grpc,Vizerai/grpc,jtattermusch/grpc,thinkerou/grpc,jtattermusch/grpc,carl-mastrangelo/grpc,podsvirov/grpc,ctiller/grpc,zhimingxie/grpc,yugui/grpc,quizlet/grpc,kumaralokgithub/grpc,hstefan/grpc,grpc/grpc,zhimingxie/grpc,MakMukhi/grpc,quizlet/grpc,malexzx/grpc,pszemus/grpc,7anner/grpc,vsco/grpc,nicolasnoble/grpc,rjshade/grpc,kriswuollett/grpc,makdharma/grpc,greasypizza/grpc,sreecha/grpc,chrisdunelm/grpc,Vizerai/grpc,Vizerai/grpc,mehrdada/grpc,leifurhauks/grpc,tengyifei/grpc,grpc/grpc,yugui/grpc,simonkuang/grpc,stanley-cheung/grpc,ipylypiv/grpc,soltanmm/grpc,stanley-cheung/grpc,podsvirov/grpc,jcanizales/grpc,vjpai/grpc,pmarks-net/grpc,ctiller/grpc,vjpai/grpc,zhimingxie/grpc,msiedlarek/grpc,philcleveland/grpc,bogdandrutu/grpc,soltanmm/grpc,deepaklukose/grpc,Crevil/grpc,7anner/grpc,daniel-j-born/grpc,dgquintas/grpc,VcamX/grpc,grpc/grpc,leifurhauks/grpc,hstefan/grpc,malexzx/grpc,wcevans/grpc,soltanmm/grpc,greasypizza/grpc,pmarks-net/grpc,kskalski/grpc,matt-kwong/grpc,goldenbull/grpc,soltanmm-google/grpc,jtattermusch/grpc,ejona86/grpc,muxi/grpc,a11r/grpc,Vizerai/grpc,nicolasnoble/grpc,andrewpollock/grpc,wcevans/grpc,baylabs/grpc,bogdandrutu/grpc,jtattermusch/grpc,ananthonline/grpc,grani/grpc,sreecha/grpc,thunderboltsid/grpc,miselin/grpc,bogdandrutu/grpc,pszemus/grpc,ejona86/grpc,firebase/grpc,mehrdada/grpc,arkmaxim/grpc,soltanmm/grpc,7anner/grpc,philcleveland/grpc,adelez/grpc,philcleveland/grpc,fuchsia-mirror/third_party-grpc,a11r/grpc,sreecha/grpc,podsvirov/grpc,a11r/grpc,andrewpollock/grpc,quizlet/grpc,yang-g/grpc,chrisdunelm/grpc,sreecha/grpc,bogdandrutu/grpc,pszemus/grpc,ipylypiv/grpc,firebase/grpc,ppietrasa/grpc,jtattermusch/grpc,chrisdunelm/grpc,tengyifei/grpc,jtattermusch/grpc,murgatroid99/grpc,wcevans/grpc,baylabs/grpc,leifurhauks/grpc,matt-kwong/grpc,chrisdunelm/grpc,murgatroid99/grpc,perumaalgoog/grpc,dgquintas/grpc,miselin/grpc,ipylypiv/grpc,yongni/grpc,donnadionne/grpc,tengyifei/grpc,MakMukhi/grpc,yang-g/grpc,muxi/grpc,yang-g/grpc,vjpai/grpc,donnadionne/grpc,geffzhang/grpc,infinit/grpc,makdharma/grpc,deepaklukose/grpc,Crevil/grpc,infinit/grpc,deepaklukose/grpc,thinkerou/grpc,soltanmm-google/grpc,ejona86/grpc,Crevil/grpc,simonkuang/grpc,jtattermusch/grpc,msiedlarek/grpc,rjshade/grpc,ppietrasa/grpc,soltanmm/grpc,muxi/grpc,msmania/grpc,stanley-cheung/grpc,Crevil/grpc,dgquintas/grpc,kpayson64/grpc,dklempner/grpc,wcevans/grpc,tamihiro/grpc,pszemus/grpc,miselin/grpc,kpayson64/grpc,podsvirov/grpc,murgatroid99/grpc,rjshade/grpc,MakMukhi/grpc,vjpai/grpc,a11r/grpc,msiedlarek/grpc,ctiller/grpc,msmania/grpc,pszemus/grpc,yugui/grpc,sreecha/grpc,soltanmm-google/grpc,kumaralokgithub/grpc,bogdandrutu/grpc,bogdandrutu/grpc,firebase/grpc,jboeuf/grpc,yang-g/grpc,apolcyn/grpc,PeterFaiman/ruby-grpc-minimal,muxi/grpc,tengyifei/grpc,thinkerou/grpc,a-veitch/grpc,yugui/grpc,dgquintas/grpc,a-veitch/grpc,thunderboltsid/grpc,jboeuf/grpc,firebase/grpc,muxi/grpc,leifurhauks/grpc,simonkuang/grpc,nicolasnoble/grpc,Crevil/grpc,carl-mastrangelo/grpc,andrewpollock/grpc,fuchsia-mirror/third_party-grpc