Recursive python variables referenced or copied?

Question

I have the following recursive function, and it's hard for me to understand how python handles variables in recursive functions. Will it create a copy of the variable addressesfor each recursion, or will it overwrite the variable and create a terrible mess?

def get_matches():
    addresses = get_addresses()

    #do stuff

    for addr in addresses:
        #do stuff
        if some_condition:
            get_matches()
        else:
            return

Answer 1

The underline concept you are looking for is called a frame .

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