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https://github.com/ets-labs/python-dependency-injector.git
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33 lines
843 B
Python
33 lines
843 B
Python
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"""
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Catalog module.
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"""
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from .std_providers import Provider
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class Catalog(object):
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"""
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Object provides catalog.
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"""
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def __init__(self, *used_providers):
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"""
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Initializer.
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"""
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self._clean_unused_providers(used_providers)
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def _clean_unused_providers(self, used_providers):
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"""
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Sets every catalog's provider in None except of `used_providers` list.
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:param list|tuple|set used_providers:
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:return:
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"""
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used_providers = set(used_providers)
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for attribute_name in set(dir(self.__class__)) - set(dir(Catalog)):
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provider = getattr(self, attribute_name)
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if not isinstance(provider, Provider):
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continue
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if provider not in used_providers:
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setattr(self, attribute_name, None)
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