I have this function:
def applychange(L):
result=3+2
L=[4,5,6]
return result
L = [1,2,3]
print(applychange(L))
print(L)
and the result is :
5
[1, 2, 3]
how to change the L variable to new value to have this result:
5
[4, 5, 6]
Add a comment
|
2 Answers
If your goal is to modify L as global variable you need to declare it as such.
For your code to run as intended, insert global L after the result assignment in your function.
Additionally, there is no need to pass L to the function in order to modify L.
def applychange():
result = 3 + 2
global L
L = [4, 5, 6]
return result
L = [1, 2, 3]
print(applychange())
print(L)
Your code written this way will result in the intended output:
5
[4, 5, 6]
Comments
The problem is that you overwrite the variable L, instead of modifying it. You can use
L[:] = [4,5,6]
instead of
L = [4,5,6]
