Inspect npz from a distance

npzpy.py

#!/usr/bin/env python3
from zipfile import ZipFile
from numpy.lib.format import read_magic, _read_array_header
import httpio
import csv
import sys

out = csv.DictWriter(sys.stdout, ['name', 'shape', 'dtype'], dialect='excel-tab')

with httpio.open(sys.argv[1]) as zfh:
    archive = ZipFile(zfh)
    for filename in archive.namelist():
        if filename.endswith('.npy'):
            with archive.open(filename) as fh:
                version = read_magic(fh)
                shape, order, dtype = _read_array_header(fh, version)
                out.writerow({
                    'name': filename,
                    'shape': repr(shape),
                    'dtype': dtype.name
                })

pip install numpy httpio