
def query_df(df, query):
    """
    Slice the data according to the provided query
    Basic usage like the one in the data query but in the postprocess
    Useful if you want to perform some slicing after a melt or pivot for example.
    Wired on the DataFrame.query method, see doc
    http://pandas.pydata.org/pandas-docs/stable/generated/pandas.DataFrame.query.html#pandas.DataFrame.query
    Args:
        Query String
    """
    df = df.query(query)
    return df

query = query_df
