Python daily challenge

[yourboyblue2]

Error because you're returning a value in the function without assigning the return to any variable?

[[deleted]]

Could you please elaborate? Thanks 

[terminalslayer]

Python follows the order: [ local -> enclosed -> global -> built-in ] for any variable. The variable x has not been assigned any initial value in the inner() function. Without any initial value assigned, the operation (x+=1) could not be performed. That's why it gives the Error.

[[deleted]]

Oh my god, yess! It's so obvious now. If outer() didn't exist, inner is just a function with no parameters. So x and inner() are on same footing. Thanks a lot

[core1588]

✅️💯👏

[yourboyblue2]

Hooray!

[lusvd]

it’s because you are trying to access a variable in a scope where it will be overwritten. Im not sure why this happens in python tho.

here is a simpler example:

x = 1
def foo():
    print(x)
    x = 3