Fix bugs in string formatting (subclass of tuple as values + with %%)
Fix bugs in string formatting (subclass of tuple as values + with %%)

Mozhuowen/brython,kevinmel2000/brython,Lh4cKg/brython,brython-dev/brython,JohnDenker/brython,Lh4cKg/brython,olemis/brython,amrdraz/brython,Lh4cKg/brython,amrdraz/brython,molebot/brython,amrdraz/brython,rubyinhell/brython,molebot/brython,jonathanverner/brython,rubyinhell/brython,rubyinhell/brython,Hasimir/brython,olemis/brython,olemis/brython,molebot/brython,jonathanverner/brython,olemis/brython,JohnDenker/brython,brython-dev/brython,Mozhuowen/brython,kikocorreoso/brython,kikocorreoso/brython,molebot/brython,kikocorreoso/brython,Isendir/brython,Hasimir/brython,Isendir/brython,kevinmel2000/brython,Hasimir/brython,Isendir/brython,Lh4cKg/brython,Hasimir/brython,jonathanverner/brython,JohnDenker/brython,kevinmel2000/brython,amrdraz/brython,brython-dev/brython,kevinmel2000/brython,jonathanverner/brython,rubyinhell/brython,Mozhuowen/brython,Isendir/brython,Mozhuowen/brython,JohnDenker/brython