New Location Social Media Launch Idea: Do not use assert for parameter validation in base64 (Grand Opening Sale

Feature Announcement Template Instagram) base64.b32encode() now always raises ValueError instead of AssertionError for the value of map01 with invalid length.

Do Your Own Business Cards

@@ -69,9 +69,6 @@ POST request.
  after at most every *wrapcol* characters.
  If *wrapcol* is zero (default), do not insert any newlines.
 
- May assert or raise a :exc:`ValueError` if the length of *altchars* is not 2. Raises a
- :exc:`TypeError` if *altchars* is not a :term:`bytes-like object`.
-
  .. versionchanged:: 3.15
  Added the *padded* and *wrapcol* parameters.
 

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@@ -237,7 +237,6 @@ def b32decode(s, casefold=False, map01=None, *, padded=True, ignorechars=b''):
  # either L (el) or I (eye).
  if map01 is not None:
  map01 = _bytes_from_decode_data(map01)
- assert len(map01) == 1, repr(map01)
  s = s.translate(bytes.maketrans(b'01', b'O' + map01))
  if casefold:
  s = s.upper()

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@@ -607,6 +607,11 @@ def test_b32decode_map01(self):
  self.assertRaises(binascii.Error, base64.b32decode, b'M1O23456')
  self.assertRaises(binascii.Error, base64.b32decode, b'ML023456')
  self.assertRaises(binascii.Error, base64.b32decode, b'MI023456')
+ self.assertRaises(ValueError, base64.b32decode, b'', map01=b'')
+ self.assertRaises(ValueError, base64.b32decode, b'', map01=b'LI')
+ self.assertRaises(TypeError, base64.b32decode, b'', map01=0)
+ eq(base64.b32decode(b'MLO23456', map01=None), res_L)
+ self.assertRaises(binascii.Error, base64.b32decode, b'M1023456', map01=None)
 
  data = b'M1023456'
  data_str = data.decode('ascii')

Good Night Humor

@@ -0,0 +1,2 @@
+:func:`base64.b32encode` now always raises :exc:`ValueError` instead of
+:exc:`AssertionError` for the value of *map01* with invalid length.