Use tuple-returning Python function in another function call

Question

I'm trying to do something like this in my code:

def fu():
    return np.array([1,2,3]), np.array([4,5,6])

def bar(x,y,z):
    print np.size(x)
    print np.size(y)
    print np.size(z)

bar(np.array([7,8]), fu())

but I'm getting an error message saying bar() takes exactly 3 arguments (2 given). How can I solve this problem?

arshajii · Accepted Answer · 2013-07-01 01:31:02Z

5

Try this:

bar(np.array([7,8]), *fu())

(unpack the tuple returned by fu())

answered Jul 1, 2013 at 1:31

arshajii

130k26 gold badges246 silver badges293 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

7stud · Accepted Answer · 2013-07-01 01:32:43Z

0

import numpy as np

def fu():
   return np.array([1,2,3]), np.array([4,5,6])

def bar(x,y,z):
   print np.size(x)
   print np.size(y)
   print np.size(z)

bar(np.array([7,8]), *fu())

--output:--
2
3
3

answered Jul 1, 2013 at 1:32

7stud

48.8k14 gold badges107 silver badges137 bronze badges

3 Comments

arshajii Over a year ago

How is this different than my answer?

7stud Over a year ago

@arshajii, I'm sorry, I didn't receive any telepathic warnings that you were answering the question at the same time I was. Did you send them?

arshajii Over a year ago

You answered two minutes later, so I assumed I didn't need to send any telepathic warnings. In any case, I don't mean to be confrontational, just doing my part to keep the bowels of the inter-webs clutter-free.

Collectives™ on Stack Overflow

Use tuple-returning Python function in another function call

2 Answers 2

Comments

3 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

3 Comments

Your Answer

Sign up or log in

Post as a guest

Related