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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_json(filename):
 """Load a json file as a dictionary"""

    try:
        if PY2:
            args = 'rb'
        else:
            args = 'r'
        with open(filename, args) as fid:
            data = json.load(fid)
        return data, None
    except Exception as err:
        return None, str(err)