copy _compat.py from flask in here (and adapt docstring)
copy _compat.py from flask in here (and adapt docstring)

tripathi62674/flask,cgvarela/flask,antsar/flask,wldtyp/flask,jstacoder/flask,cliu-aa/flask,garaden/flask,fengsp/flask,dhruvsrivastava/flask,nZac/flask,stephaniemertz/flask,gaomingnudt/gm-flask2.0,gangeshwark/flask,wldtyp/flask,wtorcasoGB/flask,homeworkprod/flask,jenalgit/flask,sgrepo/flask,chuijiaolianying/flask,elelianghh/flask,chuijiaolianying/flask,drewja/flask,tjxiter/flask,lalinsky/flask,chuijiaolianying/flask,chenke91/flask,chenrenyi/flask,karen-wang/flask,huwenhui/flask,sam-tsai/flask,flamelizard/flask,aniketshukla/flask,margguo/flask,xiaoshaozi52/flask,Ricardo666666/flask,jorpramo/flask,mrdon/flask,dawran6/flask,xujianhai/flask,mAzurkovic/flask,tony/flask,Parkayun/flask,visaxin/flask,liaoqingwei/flask,jawed123/flask,justanr/flask,mitsuhiko/flask,pxzhenren/flask,kuku940/flask,gangeshwark/flask,iamantee/flask,ezequielo/flask,Freebird2014/flask,garaden/flask,drewja/flask,onetinyr/flask,ffsdmad/flask,JingZhou0404/flask,jonatanblue/flask,oculardexterity/flask,JingZhou0404/flask,Faiz7412/flask,jonieli/flask,alexwidener/flask,ryandvill/flask,SsangYoon/Flask,mrdon/flask,cgvarela/flask,SsangYoon/Flask,jenalgit/flask,godfreyy/flask,kuhli/flask,theo-l/flask,rawrgulmuffins/flask,ezequielo/flask,cheesecake4392/flask,liuyi1112/flask,Papa2k15/flask,HeyItsAlan/flask,auready/flask,pallets/flask,grayswand1r/flask,blankme/flask,lynget/flask,liukaijv/flask,tristanfisher/flask,AndreaEdwards/flask,dawran6/flask,alanhamlett/flask,zailushangde/flask,fevxie/flask,blankme/flask,hyunchel/flask,alanhamlett/flask,AvivC/flask,abdulbaqi/flask,wangjun/flask,WSDC-NITWarangal/flask,edcomstock/flask,VShangxiao/flask,tony/flask,liaoqingwei/flask,s7v7nislands/flask,adrianmoisey/cptdevops,XGiton/flask,tcnoviembre2013/flask,visaxin/flask,raven47git/flask,theo-l/flask,felipefuka/flask,oculardexterity/flask,Faiz7412/flask,pledo/flask,VShangxiao/flask,ZacariasBendeck/flask,robertglen/flask,szymonm/flask,zoyanhui/flask,ABaldwinHunter/flask-clone-classic,nwags/flask,mrdon/flask,GavinCruise/flask,GavinCruise/flask,mysweet/flask,VShangxiao/flask,VictorChaun/flask,kuhli/flask,erishforG/flask,visaxin/flask,robertglen/flask,TylerB24890/flask,ankurpandey/flask,vishnugonela/flask,nju520/flask,oculardexterity/flask,s7v7nislands/flask,wudafucode/flask,EasonYi/flask,brianbeale/flask,tristanfisher/flask,alanhamlett/flask,chenrenyi/flask,Endika/flask,nZac/flask,abdulbaqi/flask,HeyItsAlan/flask,algoStruct/flask,wklken/flask,suppandi/flask,jiimaho/flask,ankurpandey/flask,vishnugonela/flask,stephaniemertz/flask,artleaf/flask,brianbeale/flask,tjxiter/flask,JamesTFarrington/flask,Ricardo666666/flask,qinfengsuiyu/flask,AvivC/flask,ankravch/flask,ryandvill/flask,zoyanhui/flask,happyspace/flask,liuyi1112/flask,karlw00t/flask,VictorChaun/flask,qinfengsuiyu/flask,flamelizard/flask,gaomingnudt/gm-flask2.0,anujk3/flask,ryandvill/flask,skmezanul/flask,Eagles2F/flask,arvinls/flask,kyle-sorensen/flask,artleaf/flask,Endika/flask,jstacoder/flask,wudafucode/flask,jonieli/flask,mrdon/flask,RohithKP/flask,mAzurkovic/flask,karen-wang/flask,wtorcasoGB/flask,chenke91/flask,bluedazzle/flask,dominjune/flask,sonnyhu/flask,lynget/flask,bodefuwa/flask,mujiatong/flask,DesQi/flask,sgrepo/flask,bluedazzle/flask,flabe81/flask,godfreyy/flask,sixpi/flask,mitchfriedman/flask,wklken/flask,skmezanul/flask,elelianghh/flask,luzzyzhang/flask,luvten/flask,fengsp/flask,jenalgit/flask,artleaf/flask,jorpramo/flask,suppandi/flask,MjAbuz/flask,tripathi62674/flask,moluzhang/flask,kyle-sorensen/flask,GavinCruise/flask,Papa2k15/flask,sixpi/flask,hoatle/flask,vivekanand1101/flask,dhruvsrivastava/flask,warm200/flask,XGiton/flask,algoStruct/flask,beni55/flask,gilesburnfield/flask,warm200/flask,VictorChaun/flask,sonnyhu/flask,treedledee/flask,vivekanand1101/flask,LonglyCode/flask,moluzhang/flask,felipefuka/flask,luzzyzhang/flask,kuku940/flask,AndreaEdwards/flask,tcnoviembre2013/flask,ghhong1986/flask,fanshaohua-fan/flask,erishforG/flask,wilbert-abreu/flask,sage417/flask,anujk3/flask,happyspace/flask,beni55/flask,postelin/flask,ghhong1986/flask,EasonYi/flask,jiimaho/flask,jonieli/flask,wklken/flask,fkazimierczak/flask,pinkpet/flask,godfreyy/flask,pallets/flask,horica-ionescu/flask,auready/flask,szymonm/flask,nju520/flask,onetinyr/flask,nwags/flask,ezequielo/flask,tangfeng1/flask,xujianhai/flask,margguo/flask,karlw00t/flask,liukaijv/flask,dominjune/flask,happyspace/flask,jawed123/flask,karen-wang/flask,fkazimierczak/flask,pledo/flask,fkazimierczak/flask,arvinls/flask,alexwidener/flask,justanr/flask,pinkpet/flask,zailushangde/flask,mitchfriedman/flask,hoatle/flask,jonatanblue/flask,gangeshwark/flask,sam-tsai/flask,hyunchel/flask,rollingstone/flask,chenke91/flask,wtl-zju/flask,ZacariasBendeck/flask,antsar/flask,Freebird2014/flask,szymonm/flask,Eagles2F/flask,gbolahanalade/flask,cheesecake4392/flask,JamesTFarrington/flask,tangfeng1/flask,pxzhenren/flask,anujk3/flask,postelin/flask,tangfeng1/flask,Ricardo666666/flask,grayswand1r/flask,EasonYi/flask,kyle-sorensen/flask,jorpramo/flask,niima/flask,lord63-forks/flask,jeezybrick/flask,liaoqingwei/flask,rawrgulmuffins/flask,ankravch/flask,mujiatong/flask,aniketshukla/flask,treedledee/flask,ABaldwinHunter/flask-clone-classic,fanshaohua-fan/flask,justanr/flask,suppandi/flask,lyn233/flask,cliu-aa/flask,vishnugonela/flask,Faiz7412/flask,pallets/flask,WSDC-NITWarangal/flask,SsangYoon/Flask,ankurpandey/flask,gbolahanalade/flask,DesQi/flask,warm200/flask,mysweet/flask,liuyi1112/flask,s7v7nislands/flask,q1ang/flask,LonglyCode/flask,bodefuwa/flask,edcomstock/flask,lyn233/flask,jeezybrick/flask,luvten/flask,sage417/flask,homeworkprod/flask,rollingstone/flask,nju520/flask,AndreaEdwards/flask,gilesburnfield/flask,wtl-zju/flask,raven47git/flask,raven47git/flask,xiaoshaozi52/flask,TylerB24890/flask,iamantee/flask,flabe81/flask,q1ang/flask,wilbert-abreu/flask,lord63-forks/flask,Parkayun/flask,MjAbuz/flask,horica-ionescu/flask,RohithKP/flask,huwenhui/flask,fevxie/flask,onetinyr/flask,jstacoder/flask,ffsdmad/flask,adrianmoisey/cptdevops,drewja/flask,wangjun/flask,postelin/flask,lalinsky/flask,mitsuhiko/flask,niima/flask,algoStruct/flask,TylerB24890/flask