tox.ini: Don't use a machine-specific path to pypy.
tox.ini: Don't use a machine-specific path to pypy.

wijerasa/webassets,john2x/webassets,aconrad/webassets,florianjacob/webassets,wijerasa/webassets,heynemann/webassets,scorphus/webassets,aconrad/webassets,JDeuce/webassets,JDeuce/webassets,aconrad/webassets,glorpen/webassets,scorphus/webassets,glorpen/webassets,heynemann/webassets,glorpen/webassets,florianjacob/webassets,john2x/webassets,0x1997/webassets,heynemann/webassets,0x1997/webassets