Example

9

42

x

in Fkt.

x

main

>>> def ref_demo(x):

... print("x=",x," id=",id(x))

... x=42

... print("x=",x," id=",id(x))

...

>>>

>>> x = 9

>>> id(x)

145207384

>>> ref_demo(x)

x= 9 id= 145207384

x= 42 id= 145206988

>>> x

9

>>> id(x)

145207384

>>>