On 12/13/22 10:36, Chris Angelico wrote:
On Wed, 14 Dec 2022 at 03:35, Michael F. Stemper
<michael.stem...@gmail.com> wrote:
It's easy enough -- in fact necessary -- to handle the bottom
level of a function differently than the levels above it. What
about the case where you want to handle something differently
in the top level than in lower levels? Is there any way to tell
from within a function that it wasn't invoked by itself?
Why does it have to be the same function?
def _sort_recursive(stuff, keys, start, end):
"""imagine a nice implementation of some sorting algorithm here"""
def sort(stuff, key=None):
if key:
keys = [key(x) for x in stuff]
else:
keys = stuff
return _sort_recursive(stuff, 0, len(stuff))
if some support for this position is needed, this is roughly how the
stdlib glob() function is implemented.
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