Update classes.py
Update classes.py

remove built-in filter function usage
Ssawa/Diamond,anandbhoraskar/Diamond,MichaelDoyle/Diamond,Clever/Diamond,bmhatfield/Diamond,mfriedenhagen/Diamond,hamelg/Diamond,python-diamond/Diamond,EzyInsights/Diamond,timchenxiaoyu/Diamond,timchenxiaoyu/Diamond,Netuitive/Diamond,Ensighten/Diamond,acquia/Diamond,hamelg/Diamond,Netuitive/Diamond,anandbhoraskar/Diamond,EzyInsights/Diamond,szibis/Diamond,stuartbfox/Diamond,MichaelDoyle/Diamond,timchenxiaoyu/Diamond,skbkontur/Diamond,MichaelDoyle/Diamond,mfriedenhagen/Diamond,EzyInsights/Diamond,zoidbergwill/Diamond,MichaelDoyle/Diamond,bmhatfield/Diamond,python-diamond/Diamond,stuartbfox/Diamond,zoidbergwill/Diamond,zoidbergwill/Diamond,zoidbergwill/Diamond,mfriedenhagen/Diamond,gg7/diamond,gg7/diamond,Clever/Diamond,tusharmakkar08/Diamond,jumping/Diamond,python-diamond/Diamond,bmhatfield/Diamond,tusharmakkar08/Diamond,jaingaurav/Diamond,jaingaurav/Diamond,Netuitive/netuitive-diamond,dcsquared13/Diamond,Precis/Diamond,socialwareinc/Diamond,russss/Diamond,Ssawa/Diamond,Netuitive/Diamond,russss/Diamond,russss/Diamond,Ssawa/Diamond,EzyInsights/Diamond,Netuitive/Diamond,actmd/Diamond,mfriedenhagen/Diamond,Ensighten/Diamond,anandbhoraskar/Diamond,skbkontur/Diamond,stuartbfox/Diamond,tusharmakkar08/Diamond,Clever/Diamond,Ssawa/Diamond,ramjothikumar/Diamond,actmd/Diamond,Netuitive/netuitive-diamond,Ensighten/Diamond,Precis/Diamond,ramjothikumar/Diamond,jumping/Diamond,szibis/Diamond,bmhatfield/Diamond,acquia/Diamond,skbkontur/Diamond,russss/Diamond,socialwareinc/Diamond,actmd/Diamond,socialwareinc/Diamond,hamelg/Diamond,gg7/diamond,Netuitive/netuitive-diamond,Precis/Diamond,timchenxiaoyu/Diamond,ramjothikumar/Diamond,dcsquared13/Diamond,jumping/Diamond,hamelg/Diamond,actmd/Diamond,tusharmakkar08/Diamond,stuartbfox/Diamond,jumping/Diamond,acquia/Diamond,Netuitive/netuitive-diamond,jaingaurav/Diamond,Clever/Diamond,Ensighten/Diamond,szibis/Diamond,dcsquared13/Diamond,Precis/Diamond,szibis/Diamond,anandbhoraskar/Diamond,jaingaurav/Diamond,socialwareinc/Diamond,acquia/Diamond,ramjothikumar/Diamond,dcsquared13/Diamond,gg7/diamond,skbkontur/Diamond