[issue38517] functools.cached_property should support partial functions and partialmethod's
Tal Einat
report at bugs.python.org
Wed Nov 13 11:03:00 EST 2019
Tal Einat <taleinat at gmail.com> added the comment:
Note that it is already possible, though awkward, to create cached properties dynamically. Using the example from PR GH-16838:
class ProcNet:
pass
for proto in ('icmp', 'icmp6', 'raw', 'raw6', 'tcp', 'tcp6', 'udp', 'udp6', 'udplite', 'udplite6'):
@cached_property
def prop(self, *, proto=proto):
with open(os.path.join("/proc/net", proto)) as file:
return file.read()
setattr(ProcNet, proto, prop)
prop.__set_name__(ProcNet, proto)
IMO this is good enough, considering that this is all pretty much required for dynamically creating normal (uncached) properties and other types of descriptors.
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nosy: +taleinat
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<https://bugs.python.org/issue38517>
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