Transforms a pandas dataframe into a bedtool

    :param df: Pandas dataframe

    :returns: a bedtool

def dfTObedtool(df):
    """
    Transforms a pandas dataframe into a bedtool

    :param df: Pandas dataframe

    :returns: a bedtool
    """

    df=df.astype(str)
    df=df.drop_duplicates()
    df=df.values.tolist()
    df=["\t".join(s) for s in df ]
    df="\n".join(df)
    df=BedTool(df, from_string=True)
    return df