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bpo-28856: Let %b format for bytes support objects that follow the buffer protocol (GH-546)

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Xiang Zhang 2017-03-14 15:07:15 +08:00 • committed by GitHub
parent 9e52c907b5
commit 7e2a54cdd9
3 changed files with 23 additions and 3 deletions
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8
Lib/test/test_format.py
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@ -332,10 +332,12 @@ class FormatTest(unittest.TestCase):
testcommon(b"%b", b"abc", b"abc")
testcommon(b"%b", bytearray(b"def"), b"def")
testcommon(b"%b", fb, b"123")
testcommon(b"%b", memoryview(b"abc"), b"abc")
# # %s is an alias for %b -- should only be used for Py2/3 code
testcommon(b"%s", b"abc", b"abc")
testcommon(b"%s", bytearray(b"def"), b"def")
testcommon(b"%s", fb, b"123")
testcommon(b"%s", memoryview(b"abc"), b"abc")
# %a will give the equivalent of
# repr(some_obj).encode('ascii', 'backslashreplace')
testcommon(b"%a", 3.14, b"3.14")
@ -372,9 +374,11 @@ class FormatTest(unittest.TestCase):
test_exc(b"%c", 3.14, TypeError,
"%c requires an integer in range(256) or a single byte")
test_exc(b"%b", "Xc", TypeError,
"%b requires bytes, or an object that implements __bytes__, not 'str'")
"%b requires a bytes-like object, "
"or an object that implements __bytes__, not 'str'")
test_exc(b"%s", "Wd", TypeError,
"%b requires bytes, or an object that implements __bytes__, not 'str'")
"%b requires a bytes-like object, "
"or an object that implements __bytes__, not 'str'")
if maxsize == 2**31-1:
# crashes 2.2.1 and earlier: