colour.utilities.Lookup¶
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class
colour.utilities.
Lookup
[source]¶ Extends dict type to provide a lookup by value(s).
References
Examples
>>> person = Lookup(first_name='Doe', last_name='John', gender='male') >>> person.first_key_from_value('Doe') 'first_name' >>> persons = Lookup(John='Doe', Jane='Doe', Luke='Skywalker') >>> sorted(persons.keys_from_value('Doe')) ['Jane', 'John']
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__init__
()¶ Initialize self. See help(type(self)) for accurate signature.
Methods
Initialize self.
clear
()copy
()first_key_from_value
(value)Gets the first key with given value.
fromkeys
Returns a new dict with keys from iterable and values equal to value.
get
(k[,d])items
()keys
()keys_from_value
(value)Gets the keys with given value.
pop
(k[,d])If key is not found, d is returned if given, otherwise KeyError is raised
popitem
()2-tuple; but raise KeyError if D is empty.
setdefault
(k[,d])update
([E, ]**F)If E is present and has a .keys() method, then does: for k in E: D[k] = E[k] If E is present and lacks a .keys() method, then does: for k, v in E: D[k] = v In either case, this is followed by: for k in F: D[k] = F[k]
values
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