Previewing a .npy file

#! /usr/bin/env python3

from sys import argv, getsizeof
from numpy import load

data = load(argv[1])

size = getsizeof(data)
size_kb = size / 1024
size_mb = size / (1024 ** 2)

print(f'Shape: {data.shape}')
print(f'Data type: {data.dtype}')
print(f'Size: {data.size}')
print(f'Occupied RAM: {size} bytes ({size_kb:.2f} KB, {size_mb:.2f} MB)')
print()
print('Content preview:')
print(data[:200])
print()

Shape: (7468541, 1024)
Data type: float64
Size: 7647785984
Occupied RAM: 61182288000 bytes (59748328.12 KB, 58347.98 MB)

Content preview:
[[-0.07646164 -0.1739306  -0.5888805  ...  0.01423606 -0.9392316
   0.09138256]
 [-0.11803283 -0.27169943 -0.6343062  ... -0.09977917 -1.1889461
   0.4786728 ]
 [ 0.33316666 -0.25544062 -0.06951106 ...  0.21167792 -0.5084344
   0.18797423]
 ...
 [-0.5917888  -0.24519566  0.0250344  ...  0.10975855 -0.77993053
  -0.19755107]
 [-0.07159433 -0.3512457  -0.23779947 ...  0.32987532 -0.7357785
   0.2488086 ]
 [ 0.01552454 -0.5029288  -0.08170918 ... -0.5175352  -0.5811472
  -0.0504258 ]]