This is one of the reasons why global variables are frowned upon and should never be used.
Since the variable is global, the second you execute my_func, you override the global with the value 10, so setting it to 20
is never seen.
This also demonstrates part of a situation that can leave to a very un-easy problem to find. where two functions are setting the value
of my_var, creating a situation of who's on base.
Instead of using a global, pass the desired value as an argument to the function.
Since the variable is global, the second you execute my_func, you override the global with the value 10, so setting it to 20
is never seen.
This also demonstrates part of a situation that can leave to a very un-easy problem to find. where two functions are setting the value
of my_var, creating a situation of who's on base.
Instead of using a global, pass the desired value as an argument to the function.