1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
|
import sys
import base64
__all__ = ['PY2', 'string_types', 'integer_types', 'text_type', 'bytes_types', 'bytes', 'long', 'input',
'decodebytes', 'encodebytes', 'bytestring', 'byte_ord', 'byte_chr', 'byte_mask',
'b', 'u', 'b2s', 'StringIO', 'BytesIO', 'is_callable', 'MAXSIZE', 'next']
PY2 = sys.version_info[0] < 3
if PY2:
string_types = basestring
text_type = unicode
bytes_types = str
bytes = str
integer_types = (int, long)
long = long
input = raw_input
decodebytes = base64.decodestring
encodebytes = base64.encodestring
def bytestring(s): # NOQA
if isinstance(s, unicode):
return s.encode('utf-8')
return s
byte_ord = ord # NOQA
byte_chr = chr # NOQA
def byte_mask(c, mask):
return chr(ord(c) & mask)
def b(s, encoding='utf8'): # NOQA
"""cast unicode or bytes to bytes"""
if isinstance(s, str):
return s
elif isinstance(s, unicode):
return s.encode(encoding)
else:
raise TypeError("Expected unicode or bytes, got %r" % s)
def u(s, encoding='utf8'): # NOQA
"""cast bytes or unicode to unicode"""
if isinstance(s, str):
return s.decode(encoding)
elif isinstance(s, unicode):
return s
else:
raise TypeError("Expected unicode or bytes, got %r" % s)
def b2s(s):
return s
try:
import cStringIO
StringIO = cStringIO.StringIO # NOQA
except ImportError:
import StringIO
StringIO = StringIO.StringIO # NOQA
BytesIO = StringIO
def is_callable(c): # NOQA
return callable(c)
def get_next(c): # NOQA
return c.next
def next(c):
return c.next()
# It's possible to have sizeof(long) != sizeof(Py_ssize_t).
class X(object):
def __len__(self):
return 1 << 31
try:
len(X())
except OverflowError:
# 32-bit
MAXSIZE = int((1 << 31) - 1) # NOQA
else:
# 64-bit
MAXSIZE = int((1 << 63) - 1) # NOQA
del X
else:
import collections
import struct
string_types = str
text_type = str
bytes = bytes
bytes_types = bytes
integer_types = int
class long(int):
pass
input = input
decodebytes = base64.decodebytes
encodebytes = base64.encodebytes
def bytestring(s):
return s
def byte_ord(c):
# In case we're handed a string instead of an int.
if not isinstance(c, int):
c = ord(c)
return c
def byte_chr(c):
assert isinstance(c, int)
return struct.pack('B', c)
def byte_mask(c, mask):
assert isinstance(c, int)
return struct.pack('B', c & mask)
def b(s, encoding='utf8'):
"""cast unicode or bytes to bytes"""
if isinstance(s, bytes):
return s
elif isinstance(s, str):
return s.encode(encoding)
else:
raise TypeError("Expected unicode or bytes, got %r" % s)
def u(s, encoding='utf8'):
"""cast bytes or unicode to unicode"""
if isinstance(s, bytes):
return s.decode(encoding)
elif isinstance(s, str):
return s
else:
raise TypeError("Expected unicode or bytes, got %r" % s)
def b2s(s):
return s.decode() if isinstance(s, bytes) else s
import io
StringIO = io.StringIO # NOQA
BytesIO = io.BytesIO # NOQA
def is_callable(c):
return isinstance(c, collections.Callable)
def get_next(c):
return c.__next__
next = next
MAXSIZE = sys.maxsize # NOQA
|