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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 load_config(configfile):
 """ Return a dict with configuration from the supplied yaml file """

    try:
        with open(configfile, 'r') as ymlfile:
            try:
                config = yaml.load(ymlfile)
                return config
            except yaml.parser.ParserError:
                raise PyYAMLConfigError(
                    'Could not parse config file: {}'.format(configfile),
                )
    except IOError:
        raise PyYAMLConfigError(
            'Could not open config file: {}'.format(configfile),
        )