add support for older setuptools (6.0 or maybe even older)
add support for older setuptools (6.0 or maybe even older)

jelmer/isso,jelmer/isso,jelmer/isso,posativ/isso,posativ/isso,Mushiyo/isso,Mushiyo/isso,jelmer/isso,posativ/isso,posativ/isso,Mushiyo/isso,Mushiyo/isso