Fix Python 2.6 compatibility
Fix Python 2.6 compatibility

jcoady9/beets,asteven/beets,Andypsamp/CODjunit,shamangeorge/beets,lengtche/beets,arabenjamin/beets,shanemikel/beets,MyTunesFreeMusic/privacy-policy,imsparsh/beets,arabenjamin/beets,gabrielaraujof/beets,parapente/beets,kareemallen/beets,moodboom/beets,sadatay/beets,imsparsh/beets,diego-plan9/beets,ttsda/beets,lightwang1/beets,sampsyo/beets,ibmibmibm/beets,dfc/beets,MyTunesFreeMusic/privacy-policy,beetbox/beets,sadatay/beets,artemutin/beets,Freso/beets,mried/beets,beetbox/beets,Wen777/beets,lightwang1/beets,multikatt/beets,kareemallen/beets,untitaker/beets,randybias/beets,ruippeixotog/beets,asteven/beets,mried/beets,madmouser1/beets,marcuskrahl/beets,kareemallen/beets,madmouser1/beets,artemutin/beets,m-urban/beets,LordSputnik/beets,ibmibmibm/beets,Freso/beets,LordSputnik/beets,lengtche/beets,PierreRust/beets,swt30/beets,jackwilsdon/beets,bj-yinyan/beets,PierreRust/beets,shamangeorge/beets,shanemikel/beets,mosesfistos1/beetbox,marcuskrahl/beets,bj-yinyan/beets,tima/beets,krig/beets,ruippeixotog/beets,jmwatte/beets,arabenjamin/beets,arabenjamin/beets,lengtche/beets,mathstuf/beets,untitaker/beets,MyTunesFreeMusic/privacy-policy,Andypsamp/CODfinalJUNIT,tima/beets,Kraymer/beets,Kraymer/beets,diego-plan9/beets,beetbox/beets,jackwilsdon/beets,randybias/beets,swt30/beets,Dishwishy/beets,kareemallen/beets,tima/beets,multikatt/beets,lightwang1/beets,kelvinhammond/beets,drm00/beets,shamangeorge/beets,xsteadfastx/beets,randybias/beets,diego-plan9/beets,sampsyo/beets,xsteadfastx/beets,multikatt/beets,sadatay/beets,Andypsamp/CODfinalJUNIT,mathstuf/beets,untitaker/beets,mathstuf/beets,Dishwishy/beets,lengtche/beets,andremiller/beets,Andypsamp/CODjunit,drm00/beets,ttsda/beets,moodboom/beets,LordSputnik/beets,m-urban/beets,Andypsamp/CODjunit,Andypsamp/CODfinalJUNIT,YetAnotherNerd/beets,SusannaMaria/beets,imsparsh/beets,ruippeixotog/beets,bj-yinyan/beets,moodboom/beets,bj-yinyan/beets,untitaker/beets,parapente/beets,madmouser1/beets,madmouser1/beets,xsteadfastx/beets,xsteadfastx/beets,Freso/beets,jmwatte/beets,mathstuf/beets,jayme-github/beets,shanemikel/beets,swt30/beets,gabrielaraujof/beets,shanemikel/beets,pkess/beets,marcuskrahl/beets,Andypsamp/CODfinalJUNIT,drm00/beets,asteven/beets,artemutin/beets,jayme-github/beets,mried/beets,m-urban/beets,YetAnotherNerd/beets,ttsda/beets,beetbox/beets,mosesfistos1/beetbox,MyTunesFreeMusic/privacy-policy,sadatay/beets,SusannaMaria/beets,shamangeorge/beets,marcuskrahl/beets,ruippeixotog/beets,multikatt/beets,krig/beets,jcoady9/beets,randybias/beets,YetAnotherNerd/beets,pkess/beets,drm00/beets,Kraymer/beets,Wen777/beets,krig/beets,mried/beets,lightwang1/beets,pkess/beets,tima/beets,PierreRust/beets,andremiller/beets,dfc/beets,Kraymer/beets,parapente/beets,Dishwishy/beets,Freso/beets,sampsyo/beets,mosesfistos1/beetbox,moodboom/beets,kelvinhammond/beets,andremiller/beets,dfc/beets,jmwatte/beets,jackwilsdon/beets,Dishwishy/beets,gabrielaraujof/beets,SusannaMaria/beets,imsparsh/beets,ibmibmibm/beets,Andypsamp/CODjunit,jcoady9/beets,asteven/beets,PierreRust/beets,parapente/beets,LordSputnik/beets,Andypsamp/CODfinalJUNIT,ibmibmibm/beets,m-urban/beets,diego-plan9/beets,kelvinhammond/beets,artemutin/beets,pkess/beets,jcoady9/beets,swt30/beets,jmwatte/beets,SusannaMaria/beets,mosesfistos1/beetbox,gabrielaraujof/beets,YetAnotherNerd/beets,Wen777/beets,sampsyo/beets,ttsda/beets,kelvinhammond/beets,dfc/beets,Andypsamp/CODjunit,jackwilsdon/beets