How exactly does a python (django) request happen? does it have to reparse all the codebase?
Question: With a scripting language like python (or php), things are not compiled down
to bytecode like in .net or java.

So does this mean that on every request, it has to go through the entire
application and parse/compile it? Or at least all the code required for the
given call stack?


Answer: > With a scripting language like python (or php), things are not compiled down
> to bytecode like in .net or java.

Wrong: everything you `import` in Python gets compiled to bytecode (and saved
as `.pyc` files if you can write to the directory containing the source you're
importing -- standard libraries &c are generally pre-compiled, depending on
the installation choices of course). Just keep the main script short and
simple (importing some module and calling a function in it) and you'll be
using compiled bytecode throughout. (Python's compiler is designed to be
extremely fast -- with implications including that it doesn't do a lot of
otherwise reasonable optimizations -- but avoiding it altogether is still
faster;-).

