01.03.18 04:46, Rick Johnson пише:
On Wednesday, February 28, 2018 at 5:02:17 PM UTC-6, Chris Angelico wrote:
Here's one example: reference cycles. When do they get detected?
Taking a really simple situation:
class Foo:
def __init__(self):
self.self = self
*shudders*
Can you provide a real world example in which you need an
object which circularly references _itself_? This looks like
a highly contrived example used to (1) merely win the
argument, and (2) Bump fib() up one position from it's
current position as "the worst introductory example of how
to write a function in the history of programming tutorials"
Every global function (or method of global class) creates a reference cycle.
def f(): pass
f.__globals__['f'] is f
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