prometheus-pve-sd/prometheuspvesd/utils.py

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2021-06-09 18:44:10 +00:00
#!/usr/bin/env python3
"""Global utility methods and classes."""
from distutils.util import strtobool
def to_bool(string):
return bool(strtobool(str(string)))
class Singleton(type):
"""Meta singleton class."""
_instances = {}
def __call__(cls, *args, **kwargs):
if cls not in cls._instances:
cls._instances[cls] = super().__call__(*args, **kwargs)
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return cls._instances[cls]