Size of the output for larger number of images

[KumarLamic]

When i have 78200 images in total .. the code breaks..
it was fixed by changing the
array('B') => array('H')
the total size of the idx3-ubyte
should be 1700x46x784= 61308800 (#images * class * image_size=total_size)
but, sadly gives 122617632..
may be the code should be changed for array('H')..
i right now dont want to go into the detail how the code works.

[KumarLamic]

i ve 46 output class and 1700 of images for each class .. it gives an error

header.append(int('0x'+hexval[2:][2:],16)) OverflowError: unsigned byte integer is greater than maximum

how possible could it be solved?