Remove need for temporary files if the pep8 module is available and a recent version.
Remove need for temporary files if the pep8 module is available and a recent version.

MeteorAdminz/autopep8,SG345/autopep8,Vauxoo/autopep8,hhatto/autopep8,SG345/autopep8,hhatto/autopep8,vauxoo-dev/autopep8,MeteorAdminz/autopep8,vauxoo-dev/autopep8,Vauxoo/autopep8