In my following code I have the following lines of coding repeated in my code so am trying to insert them inside a function and call them whenever they are needed, but there is an error happening and I don't know why:
list1=[1000,2000,3000,4000,5000]
i=0
c=0.5
n=1000
def func(list1,i,c,n):
x=list1[i]/2
y=x*c
z=n-y
if z<=0:
list1.pop(i)
func(list1,i,c,n)
print('x=',x,'y=',y,'z=',z)
When i try to execute the code I get an error that x or y or z are not defined.
Variables creates inside functions only exist until the function ends.
If you want the x,y and z to be available from the global scope, you will need to declare you'd like this behaviour. You can indicate that a variable will be global by simply adding this line at the beginning of the function:
def func(new_x):
global x
x = new_x
func(5)
print('x=', x)
This will print 5 for example.
You can declare global for multiple variables at once by using comma like so:
def func(new_x):
global x, y
x = new_x
y = new_x+1
func(5)
print(f'x={x} y={y}')
This will print x=5 y=6.
Notice the way I used to format the string. It's called f-string and you can read about it here.
global x,y,z at the beginning of you function.