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https://github.com/chatmail/core.git
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fac7b064b4
Add lint environment to `deltachat-rpc-client/` and set line length to 120, same as in `python/`. Switch from flake8 to ruff. Fix ruff warnings.
33 lines
823 B
Python
33 lines
823 B
Python
"""Helpers for properties."""
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def with_doc(f):
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return property(f, None, None, f.__doc__)
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# copied over unmodified from
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# https://github.com/devpi/devpi/blob/master/common/devpi_common/types.py
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def cached(f):
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"""returns a cached property that is calculated by function f."""
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def get(self):
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try:
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return self._property_cache[f]
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except AttributeError:
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self._property_cache = {}
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except KeyError:
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pass
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res = f(self)
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self._property_cache[f] = res
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return res
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def set(self, val):
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propcache = self.__dict__.setdefault("_property_cache", {})
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propcache[f] = val
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def fdel(self):
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propcache = self.__dict__.setdefault("_property_cache", {})
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del propcache[f]
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return property(get, set, fdel)
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