- Singleton
- https://stackoverflow.com/questions/6760685/creating-a-singleton-in-python
- https://python-3-patterns-idioms-test.readthedocs.io/en/latest/Singleton.html
- https://github.com/Kemaweyan/singleton_decorator
how to implement singleton in python?
there is really lot of way to do. even there is a library.
(even if this library's last update is 3 years ago...)
this moment i do not fully understand those codes.
but i need to implement code. so i choose some alternative.
...
_instance = None
@classmethod
def _getInstance(cls):
return cls._instance
@classmethod
def instance(cls, *args, **kargs):
cls._instance = cls(*args, **kargs)
cls.instance = cls._getInstance
return cls._instance
...this code has critical cons that is can not use constructor. so i just call __init__like method once.
@classmethod
def init_like(cls):
# initialize instance
passi know this is bad. and quite ugly ☹️
so i refactor this part later.
- Guide
- Oh my AWS
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