CODEWITHSUNDEEP
pythonobject
Rushil Paul
Rushil Paul

Reputation: 2048

Defining multiple objects of the same class in python

is there any shorthand method of defining multiple objects of the same class in one line. (I'm not talking about lists or array of objects)..

i mean something like

p1,p2,p3 = Point()

any suggestions?

Upvotes: 1

Views: 829

Answers (4)

Artsiom Rudzenka
Artsiom Rudzenka

Reputation: 29131

Think map is also acceptable here:

p1, p2, p3 = map(lambda x: Point(), xrange(3))

But generator expression seems to be a bit faster:

p1, p2, p3 = (Point() for x in xrange(3))

Upvotes: 1

JAB
JAB

Reputation: 21089

It may be slightly more efficient to use a generator comprehension rather than a list comprehension:

p1, p2, p3 = (Point() for _ in range(3)) # use xrange() in versions of Python where range() does not return an iterator for more efficiency

There's also the simple solution of

p1, p2, p3 = Point(), Point(), Point()

Which takes advantage of implicit tuple packing and unpacking.

Upvotes: 6

GaretJax
GaretJax

Reputation: 7780

What exactly are you trying to achieve?

This code does what you're asking, but I don't know if this is your final goal:

p1, p2, p3 = [Point() for _ in range(3)]

Upvotes: 2

Ignacio Vazquez-Abrams
Ignacio Vazquez-Abrams

Reputation: 799500

Not really.

p1, p2, p3 = [Point() for x in range(3)]

Upvotes: 3

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