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from array import array

from random import random

floats1 = array('d', (random() for i in range(10**3)))

print(floats1[-1])

fp = open('floats.bin', 'wb')

floats1.tofile(fp)

fp.close()

fp = open('floats.txt', 'w')

for item in floats1:

fp.write(str(item) + '\n')

fp.close()

floats2 = array('d')

fp = open('floats.bin', 'rb')

floats2.fromfile(fp, 10**3)

fp.close()

print(floats2[-1])

print('floats1 == floats2', floats1 == floats2)