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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 find_packages_under(path):
 """ Recursive list all of the packages under a specific package."""

    all_packages = setuptools.find_packages()
    packages = []
    for package in all_packages:
        package_split = package.split(".")
        if package_split[0] == path:
            packages.append(package)
    return packages