convert-ipfs-to-bytes32.py

# Script to convert ipfs to b58decode, eg QmTN6gMCBCYTgbis33eSvr6sLsQoQ3R6a2KzR7CqmMABQP -> '0xdfffeffgkjfijfoiqfioqmfqiomfdfffeffgkjfijfoiqfioqmfqiomf
# Require: file with list of ipfs: each row is one ipfs
# Usage: python3 convert-ipfs-to-bytes32.py file.csv
import binascii
import base58
import sys

def ipfs_b32(ipfs):
    output  = base58.b58decode(ipfs)
    output = output[2:]
#    print(output)
    return '0x' + binascii.hexlify(output).decode("utf-8")
#ipfs_b32('QmTN6gMCBCYTgbis33eSvr6sLsQoQ3R6a2KzR7CqmMABQP')

with open(sys.argv[1], 'r') as input_file:
    with open(sys.argv[2], 'a+') as output_file:
     for line in input_file:
         b32 = ipfs_b32(line.strip())
         output_file.write('{},{}'.format(line.strip(), b32))
         print(b32)