'Initialize an instance of the DataFrameClient.'

def __init__(self, ignore_nan=True, *args, **kwargs):

    super(DataFrameClient, self).__init__(*args, **kwargs)
    try:
        global pd
        import pandas as pd
    except ImportError as ex:
        raise ImportError(u'DataFrameClient    requires    Pandas,    "{ex}"    problem    importing'.format(ex=str(ex)))
    self.EPOCH = pd.Timestamp(u'1970-01-01    00:00:00.000+00:00')
    self.ignore_nan = ignore_nan
