Mailman 3 Add "default" kw argument to operator.itemgetter and operator.attrgetter - Python-ideas

2 May 2018

      Hi everybody,

Our PEP idea would be to purpose to add a global default value for
itemgeet and attrgetter method.

This was inspired from bug 14384 (https://bugs.python.org/issue14384);
opened by Miki TEBEKA.

For example, we could do:

p1 = {'x': 43; 'y': 55}
x, y, z = itemgetter('x', 'y', 'z', default=0)(values)
print(x, y, z)
43, 55, 0

instead of:

values = {'x': 43; 'y': 55}
x = values.get('x', 0)
y = values.get('y', 0)
z = values.get('z', 0)
print(x, y, z)
43, 55, 0

The goal is to have have concise code and improve consistency with
getattr, attrgetter and itemgetter

What are you thinking about this?

MAILLOL Vincent
GALODE Alexandre

Add "default" kw argument to operator.itemgetter and operator.attrgetter

Vincent Maillol

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