Why am I getting an overflowerror in Python?

here’s my code

J = random.randrange(400000000000000000, 800000000000000000)
K = codecs.encode(J.to_bytes(2, 'big'), "base64")

but i’m getting an overflow error when trying to run this…
Basically I’m generating a number between 400000000000000000 and 800000000000000000 and converting it to base64. If anyone could help, that’d be great, thanks

>Solution :

As you said, the problem is an overflow :

import random, codecs
J = random.randrange(400000000000000000, 800000000000000000)
K = codecs.encode(J.to_bytes(2, 'big'), "base64")
# Traceback (most recent call last):
#   File "<stdin>", line 1, in <module>
# OverflowError: int too big to convert

The problem is that you don’t give him enough bytes in J.to_bytes(2, 'big') :
This fixes the issue:

J.to_bytes(8, 'big')

Here is an array of possibilities per size in byte (2^bits)