fast_iter(context, process_series)
with open(path, 'rb') as f:
    context = ET.iterparse(f, events=('end',), tag=
        '{http://www.federalreserve.gov/structure/compact/common}DataSet')
fast_iter(context, process_dataset)
df = pd.DataFrame(data, columns=columns)
How to open this XML file to create dataframe in Python?