Modify Base64 Encode Decode in Python

[rzuckerm]

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I Am Modifying an Existing Code Snippet or Existing Tests

• I fixed Modify Base64 Encode Decode in Python #4587
• I did not include any extra folders/libraries
• I have read about modifying existing code snippets or tests in the contributing documentation
• I have explained why this modification is necessary either in the issue linked above or in the notes below
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Other Notes

Although this sample currently works, if you run this, you will get this error:

>>> import base64
>>> base64.b64decode(b"hello world=")
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib/python3.10/base64.py", line 87, in b64decode
    return binascii.a2b_base64(s)
binascii.Error: Incorrect padding

What this implies is that the invalid Base64 character (' ') is being ignored. However, if you run this, you will get the proper error:

>>> base64.b64decode(b"hello world=", validate=True)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib/python3.10/base64.py", line 86, in b64decode
    raise binascii.Error('Non-base64 digit found')
binascii.Error: Non-base64 digit found

This is the correct error.

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