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py3: always drop b'' prefix from repr() of bytestr Perhaps this is what we wanted for py2-3 compatibility.
author Yuya Nishihara <yuya@tcha.org>
date Sat, 27 Jan 2018 17:31:25 +0900
parents e66d6e938d2d
children fc44c2657dc5
comparison
equal deleted inserted replaced
35902:2da4144e6716 35903:1a31111e6239
86 86
87 class bytestr(bytes): 87 class bytestr(bytes):
88 """A bytes which mostly acts as a Python 2 str 88 """A bytes which mostly acts as a Python 2 str
89 89
90 >>> bytestr(), bytestr(bytearray(b'foo')), bytestr(u'ascii'), bytestr(1) 90 >>> bytestr(), bytestr(bytearray(b'foo')), bytestr(u'ascii'), bytestr(1)
91 (b'', b'foo', b'ascii', b'1') 91 ('', 'foo', 'ascii', '1')
92 >>> s = bytestr(b'foo') 92 >>> s = bytestr(b'foo')
93 >>> assert s is bytestr(s) 93 >>> assert s is bytestr(s)
94 94
95 __bytes__() should be called if provided: 95 __bytes__() should be called if provided:
96 96
97 >>> class bytesable(object): 97 >>> class bytesable(object):
98 ... def __bytes__(self): 98 ... def __bytes__(self):
99 ... return b'bytes' 99 ... return b'bytes'
100 >>> bytestr(bytesable()) 100 >>> bytestr(bytesable())
101 b'bytes' 101 'bytes'
102 102
103 There's no implicit conversion from non-ascii str as its encoding is 103 There's no implicit conversion from non-ascii str as its encoding is
104 unknown: 104 unknown:
105 105
106 >>> bytestr(chr(0x80)) # doctest: +ELLIPSIS 106 >>> bytestr(chr(0x80)) # doctest: +ELLIPSIS
151 s = bytechr(s) 151 s = bytechr(s)
152 return s 152 return s
153 153
154 def __iter__(self): 154 def __iter__(self):
155 return iterbytestr(bytes.__iter__(self)) 155 return iterbytestr(bytes.__iter__(self))
156
157 def __repr__(self):
158 return bytes.__repr__(self)[1:] # drop b''
156 159
157 def iterbytestr(s): 160 def iterbytestr(s):
158 """Iterate bytes as if it were a str object of Python 2""" 161 """Iterate bytes as if it were a str object of Python 2"""
159 return map(bytechr, s) 162 return map(bytechr, s)
160 163