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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 lssitepackages_cmd(argv):
 """Show the content of the site-packages directory of the current virtualenv."""

    site = sitepackages_dir()
    print(*sorted(site.iterdir()), sep=os.linesep)
    extra_paths = site / '_virtualenv_path_extensions.pth'
    if extra_paths.exists():
        print('from _virtualenv_path_extensions.pth:')
        with extra_paths.open() as extra:
            print(''.join(extra.readlines()))