I am attempting to use the __new__ method in the following code:
class SingletonExample(object):
_instance = None
def __new__(cls, **kwargs):
if cls._instance is None:
cls._instance = super().__new__(cls, **kwargs)
return cls._instance
def __init__(self, *
Mon, Sep 25, 2023 at 11:15 AM Thomas Passin via Python-list <
python-list@python.org> wrote:
> On 9/25/2023 10:15 AM, Jonathan Gossage via Python-list wrote:
> > I am having a problem using generator expressions to supply the arguments
> > for a class instance initialization.
I am having a problem using generator expressions to supply the arguments
for a class instance initialization. The following example shows the
problem:
class test1(object):
def __init__(self, a, b):
> self.name = a
self.value = b
st = 'Programming Renaissance, Any'.split(', '
I am attempting to use forward references in my program and I am failing.
This also does not work with the older way of putting the name of a class
as a string. Here is some sample code:
from __future__ import annotations
from dataclasses import dataclass
from typing import TypeAlias
ColorDef:
