Inspect NEXRAD Level II file on AWS

inspect.py

import boto3
import botocore
from botocore.client import Config
import matplotlib.pyplot as plt
from metpy.io import Level2File
from metpy.plots import add_timestamp, ctables
from mpl_toolkits.axes_grid1 import make_axes_locatable
import numpy as np

s3 = boto3.resource('s3', config=Config(signature_version=botocore.UNSIGNED,
                                        user_agent_extra='Resource'))
bucket = s3.Bucket('noaa-nexrad-level2')
for obj in bucket.objects.filter(Prefix='2019/06/26/KVWX/KVWX20190626_221105_V06'):
    print(obj.key)

    # Use MetPy to read the file
    f = Level2File(obj.get()['Body'])
    print(f.sweeps[0][0])
    print(f.sweeps[4][0])