有没有一种方法可以定义一个变量，该变量是Python函数内部的一个参数？

Question

Is it possible to define a variable that is a parameter inside a function? I've tried doing this:

def myfunc(variable):
    variable = 5


myfunc(x)
print(x)

I was expecting to see the number "5" printed on my screen, because I'm defining x (which is 5) and then printing it. But I get this NameError:

Traceback (most recent call last):
  File "C:\Users\yoelc\PycharmProjects\Test\app.py", line 4, in <module>
    myfunc(x)
NameError: name 'x' is not defined

I know it is possible to do this:

def myfunc():
    return 5


x = myfunc()
print(x)

But that's not what I'm trying to do. Is there a way to define this?

Answer 1

Maybe not exactly what you want but pretty similar:

def myfunc(variable):
    globals()[variable] = 5
myfunc('x')
print(x)

That being said this is a bad idea, unless you really need to use metaprogramming for some reason