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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 get_process_path(tshark_path=None, process_name="tshark"):
 """ Finds the path of the tshark executable. If the user has provided a path or specified a location in config.ini it will be used. Otherwise default locations will be searched. :param tshark_path: Path of the tshark binary :raises TSharkNotFoundException in case TShark is not found in any location. """

    config = get_config()
    possible_paths = [config.get(process_name, "%s_path" % process_name)]

    # Add the user provided path to the search list
    if tshark_path is not None:
        possible_paths.insert(0, tshark_path)

    # Windows search order: configuration file's path, common paths.
    if sys.platform.startswith('win'):
        for env in ('ProgramFiles(x86)', 'ProgramFiles'):
            program_files = os.getenv(env)
            if program_files is not None:
                possible_paths.append(
                    os.path.join(program_files, 'Wireshark', '%s.exe' % process_name)
                )
    # Linux, etc. search order: configuration file's path, the system's path
    else:
        os_path = os.getenv(
            'PATH',
            '/usr/bin:/usr/sbin:/usr/lib/tshark:/usr/local/bin'
        )
        for path in os_path.split(':'):
            possible_paths.append(os.path.join(path, process_name))

    for path in possible_paths:
        if os.path.exists(path):
            if sys.platform.startswith('win'):
                path = path.replace("\\", "/")
            return path
    raise TSharkNotFoundException(
        'TShark not found. Try adding its location to the configuration file. '
        'Searched these paths: {}'.format(possible_paths)
    )