PEP 1, PEP Purpose and Guidelines

[Andrew Kuchling]

aahz at panix.com (Aahz Maruch) writes:
> After taking a closer look at Moshe's numeric proposals, I suggest adding
> a Depends-On: header.  (E.g. PEP 240 depends on PEP 239.)

What would Depends-On mean?  Does it mean "To understand PEP 240, go
read PEP 239 first"?  Or "To implement PEP 240, PEP 239 would first
have to be implemented or accepted"?  Or something else?  

--amk