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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 _install(archive_filename, install_args=()):
 """Install Setuptools."""

    with archive_context(archive_filename):
        # installing
        log.warn('Installing Setuptools')
        if not _python_cmd('setup.py', 'install', *install_args):
            log.warn('Something went wrong during the installation.')
            log.warn('See the error message above.')
            # exitcode will be 2
            return 2