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
|
# mode: run
# tag: exceptions
import sys
IS_PY3 = sys.version_info[0] >= 3
__doc__ = u"""
>>> if not IS_PY3: sys.exc_clear()
>>> def test_py(outer_exc):
... try:
... raise AttributeError
... except AttributeError:
... print(sys.exc_info()[0] is AttributeError or sys.exc_info()[0])
... try: raise KeyError
... except:
... print(sys.exc_info()[0] is KeyError or sys.exc_info()[0])
... if IS_PY3:
... print(isinstance(sys.exc_info()[1].__context__, AttributeError)
... or sys.exc_info()[1].__context__)
... else:
... print(True)
... print((IS_PY3 and sys.exc_info()[0] is AttributeError) or
... (not IS_PY3 and sys.exc_info()[0] is KeyError) or
... sys.exc_info()[0])
... print((IS_PY3 and sys.exc_info()[0] is outer_exc) or
... (not IS_PY3 and sys.exc_info()[0] is KeyError) or
... sys.exc_info()[0])
>>> print(sys.exc_info()[0]) # 0
None
>>> test_py(None)
True
True
True
True
True
>>> print(sys.exc_info()[0]) # test_py()
None
>>> test_c(None)
True
True
True
True
True
>>> print(sys.exc_info()[0]) # test_c()
None
>>> def test_py2():
... try:
... raise Exception
... except Exception:
... test_py(Exception)
... print(sys.exc_info()[0] is Exception or sys.exc_info()[0])
... print((IS_PY3 and sys.exc_info()[0] is None) or
... (not IS_PY3 and sys.exc_info()[0] is Exception) or
... sys.exc_info()[0])
>>> test_py2()
True
True
True
True
True
True
True
>>> print(sys.exc_info()[0]) # test_py2()
None
>>> test_c2()
True
True
True
True
True
True
True
>>> print(sys.exc_info()[0]) # test_c2()
None
"""
def test_c(outer_exc):
try:
raise AttributeError
except AttributeError:
print(sys.exc_info()[0] is AttributeError or sys.exc_info()[0])
try: raise KeyError
except:
print(sys.exc_info()[0] is KeyError or sys.exc_info()[0])
if IS_PY3:
print(isinstance(sys.exc_info()[1].__context__, AttributeError)
or sys.exc_info()[1].__context__)
else:
print(True)
print(sys.exc_info()[0] is AttributeError or sys.exc_info()[0])
print(sys.exc_info()[0] is outer_exc or sys.exc_info()[0])
def test_c2():
try:
raise Exception
except Exception:
test_c(Exception)
print(sys.exc_info()[0] is Exception or sys.exc_info()[0])
print(sys.exc_info()[0] is None or sys.exc_info()[0])
|
