Fixed imports; improved PEP8 formatting compliance
Fixed imports; improved PEP8 formatting compliance

dsiddharth/access-keys,cbrucks/keystone_ldap,vivekdhayaal/keystone,jamielennox/keystone,townbull/keystone-dtrust,cloudbau/keystone,rodrigods/keystone,ilay09/keystone,jonnary/keystone,cbrucks/Federated_Keystone,klmitch/keystone,kwss/keystone,ajayaa/keystone,JioCloud/keystone,dims/keystone,cloudbau/keystone,kwss/keystone,reeshupatel/demo,dims/keystone,ntt-sic/keystone,ging/keystone,maestro-hybrid-cloud/keystone,townbull/keystone-dtrust,MaheshIBM/keystone,admiyo/keystone,savi-dev/keystone,openstack/keystone,derekchiang/keystone,savi-dev/keystone,rickerc/keystone_audit,UTSA-ICS/keystone-kerberos,jamielennox/keystone,roopali8/keystone,nuxeh/keystone,pvo/keystone,ging/keystone,maestro-hybrid-cloud/keystone,klmitch/keystone,derekchiang/keystone,ilay09/keystone,dstanek/keystone,nuxeh/keystone,JioCloud/keystone,promptworks/keystone,kwss/keystone,openstack/keystone,takeshineshiro/keystone,idjaw/keystone,sileht/deb-openstack-keystone,dstanek/keystone,reeshupatel/demo,pvo/keystone,mahak/keystone,mahak/keystone,vivekdhayaal/keystone,cbrucks/keystone_ldap,blueboxgroup/keystone,himanshu-setia/keystone,ntt-sic/keystone,UTSA-ICS/keystone-kerberos,townbull/keystone-dtrust,ntt-sic/keystone,dsiddharth/access-keys,himanshu-setia/keystone,rickerc/keystone_audit,roopali8/keystone,idjaw/keystone,MaheshIBM/keystone,openstack/keystone,rushiagr/keystone,ntt-pf-lab/backup_keystone,sileht/deb-openstack-keystone,rodrigods/keystone,sileht/deb-openstack-keystone,rickerc/keystone_audit,ajayaa/keystone,cbrucks/Federated_Keystone,pvo/keystone,cernops/keystone,jumpstarter-io/keystone,cernops/keystone,dstanek/keystone,citrix-openstack-build/keystone,reeshupatel/demo,rajalokan/keystone,derekchiang/keystone,ntt-pf-lab/backup_keystone,blueboxgroup/keystone,admiyo/keystone,vivekdhayaal/keystone,ntt-pf-lab/backup_keystone,citrix-openstack-build/keystone,citrix-openstack-build/keystone,promptworks/keystone,jumpstarter-io/keystone,cloudbau/keystone,savi-dev/keystone,jonnary/keystone,rajalokan/keystone,cbrucks/Federated_Keystone,dsiddharth/access-keys,ilay09/keystone,rushiagr/keystone,admiyo/keystone,rushiagr/keystone,mahak/keystone,takeshineshiro/keystone,nuxeh/keystone,cbrucks/keystone_ldap,rajalokan/keystone,jumpstarter-io/keystone,promptworks/keystone