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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 replace_nones(dict_or_list):
 """Update a dict or list in place to replace 'none' string values with Python None."""


    def replace_none_in_value(value):
        if isinstance(value, basestring) and value.lower() == "none":
            return None
        return value

    items = dict_or_list.iteritems() if isinstance(dict_or_list, dict) else enumerate(dict_or_list)

    for accessor, value in items:
        if isinstance(value, (dict, list)):
            replace_nones(value)
        else:
            dict_or_list[accessor] = replace_none_in_value(value)