choosing random dynamic port number

[Emin.shopper Martinian.shopper]

Dear Experts,

Is there a good way to choose/assign random dynamic port numbers in python?

I had in mind something like the following, but if multiple programs are
generating random port numbers, is there a way to check if a given port
number is already taken?

    def GenerateDynamicPortNumber():
        "Generate a random dynamic port number and return it."
        # port numbers between 49152 to 65535 are dynamic port numbers
        return 49152 + random.randrange(15000)

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