[issue13637] binascii.a2b_* functions could accept unicode strings

[Vajrasky Kok]

Vajrasky Kok added the comment:

Here is another patch to better the error message. Right now, the error message when wrong input sent to unhexlify is a little bit funny.

>>> import binascii
>>> binascii.unhexlify(3)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: argument should be bytes, buffer or ASCII string, not <class 'int'>

After patch:
>>> import binascii
>>> binascii.unhexlify(3)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: argument should be bytes, buffer or ASCII string, not int

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Added file: http://bugs.python.org/file32463/better_error_message_binascii.patch

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<http://bugs.python.org/issue13637>
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