CODEWITHSUNDEEP
pythonpython-3.xfunctionvariablesmodule
therion
therion

Reputation: 445

How to use Global Variables from Imported Functions

Say 'Mathematics' is a Module downloadable from Pypi. It contains the following function:

def addition(a, b):
    global mul

    mul = a * b        
    sum = a + b

    return sum   # only returns sum, mul is not returned

I call this function using import like so -

from mathematics import addition
ans1 = addition(3, 5)
print(ans)

But when I say -

ans2 = mul

I get the following error:

AttributeError: 'function' object has no attribute 'mul'

I was hoping to retrieve the value of 'mul' as it has been assigned to be global. How can I retrieve mul from an imported function. Had it not been imported, 'mul' would work. Since the function is imported, obviously the source code of the function 'addition' is not available.

What should be done?

Upvotes: 0

Views: 65

Answers (2)

Mandar Autade
Mandar Autade

Reputation: 356

if you want you can return the value of mul along with add but actually that doesn't make sense....

but if you want to access the value of mul, do

from mathematics import addition,mul

mul must be a global var though.

Upvotes: 0

Daniel
Daniel

Reputation: 42778

Instead of using global, return both values:

def addition(a, b):
    mul = a * b
    sum = a + b
    return sum, mul

and assign both to two variables:

ans1, ans2 = addition(3, 5)

Upvotes: 1

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