Global Variables

Here is an example of a global variable in action.
x = 34

def add45():
    global x
    x = x + 1
    return x + 44

print (x)
print (add45())
print (add45()) 

Global variables are often said to be dangerous. This is due that is not clear what a function is actually doing if we keep we depend in external references, this is to be considered when using global variables.

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