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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def rerun(version="3.7.0"):
 """ Rerun last example code block with specified version of python. """

    from commandlib import Command

    Command(DIR.gen.joinpath("py{0}".format(version), "bin", "python"))(
        DIR.gen.joinpath("state", "examplepythoncode.py")
    ).in_dir(DIR.gen.joinpath("state")).run()