base64 to hex | Python Fiddle

# source: https://stackoverflow.com/questions/44164829/base64-decode-specific-string-incorrect-padding-with-correct-padding

# We use hexlify for debugging.
import binascii

# We use the Base64 library.
import base64

# Base64 works on multiples of 4 characters..
# ..Sometimes we get 3/2/1 characters and it might be midway through another.
def relaxed_decode_base64(data):
    
    # If there is already padding we strim it as we calculate padding ourselves.
    if '=' in data:
       data = data[:data.index('=')]

# We need to add padding, how many bytes are missing.
    missing_padding = len(data) % 4

# We would be mid-way through a byte.
    if missing_padding == 1:
       data += 'A=='
    # Jut add on the correct length of padding.
    elif missing_padding == 2:
       data += '=='
    elif missing_padding == 3:
       data += '='

# Actually perform the Base64 decode.
    return base64.b64decode(data)

# Debugging
print(str(relaxed_decode_base64('46oWrWpy2gTEGwNnN6Ayy')) + '\n')

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