MiniOperators for Python
This library makes it almost trivial to add extended operators to the python language, or to transform existing functions into binary operators. For example, one might take the function compose:
def compose(f, g):
return lambda *args, **kwargs: f(g(*args, **kwargs))
And turn it into an operator, |compose|:
compose = MiniOperator(compose)
Then, the operator can be used as a binary operator [1]:
f = math.sqrt |compose| (lambda x: x**2 + 1) f(0) # 1.0
If one consistently uses this |<name>| notation and parenthesises arguments, no problems should arise [2].
Furthermore, the operator thus created will support overriding through the standard Python convention of __<name>__ and __r<name>__ special methods.
Documentation
The MiniOperator constructor can be called in three ways. MiniOperator(f) creates an operator named f that uses f as its default operation [3]. A name can also be explicitely passed: MiniOperator(name, f), where name is a string, will create an operator named name that uses f as a default operation. Finally, one can create an operator without specifying a default method: MiniOperator(name), where name is a string, will result in an operator that will throw a NotImplementedError when used on most arguments. However, a class will be able to explicitely override __<name>__ or __r<name>__ to support this operator.
Footnotes
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Metadata
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Release files for MiniOperators 1.0
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