1 >>> ls1=["nihia"]
2 >>> ls1
3 ['nihia']
4 >>> ls1.pop()
5 'nihia'
6 >>> ls1.append("sssss")
7 >>> ls1
8 ['sssss']
9 >>> assert len(ls1)>0
10 >>> ls1.pop()
11 'sssss'
12 >>> assert len(ls1)>0
13
14 Traceback (most recent call last):
15 File "<pyshell#38>", line 1, in <module>
16 assert len(ls1)>0
17 AssertionError
18 >>>
19 >>> ls1.fishc
20
21 Traceback (most recent call last):
22 File "<pyshell#40>", line 1, in <module>
23 ls1.fishc
24 AttributeError: 'list' object has no attribute 'fishc'
25 >>>
26 >>> ms1[3]
27
28 Traceback (most recent call last):
29 File "<pyshell#42>", line 1, in <module>
30 ms1[3]
31 NameError: name 'ms1' is not defined
32 >>> ls1[3]
33
34 Traceback (most recent call last):
35 File "<pyshell#43>", line 1, in <module>
36 ls1[3]
37 IndexError: list index out of range
38 >>>
39 >>> dict1={'one':1 ,'two':2}
40 >>> dict1['one']
41 1
42 >>> dict1['four']
43
44 Traceback (most recent call last):
45 File "<pyshell#47>", line 1, in <module>
46 dict1['four']
47 KeyError: 'four'
48 >>> dixt1.get('four')
49
50 Traceback (most recent call last):
51 File "<pyshell#48>", line 1, in <module>
52 dixt1.get('four')
53 NameError: name 'dixt1' is not defined
54 >>> dict1.get('four')
55 >>> dict1.get('two')
56 2
57 >>> 1+'1'
58
59 Traceback (most recent call last):
60 File "<pyshell#51>", line 1, in <module>
61 1+'1'
62 TypeError: unsupported operand type(s) for +: 'int' and 'str'
63 >>> 5/0
64
65 Traceback (most recent call last):
66 File "<pyshell#52>", line 1, in <module>
67 5/0
68 ZeroDivisionError: integer division or modulo by zero
69 >>>
70 >>>
71 >>>
72 >>>
73 >>> ================================ RESTART ================================
74 >>>
75
76 Traceback (most recent call last):
77 File "/tmp/guest-WX48w4/文档/py1.py", line 2, in <module>
78 file_name=open('myname')
79 IOError: [Errno 2] No such file or directory: 'myname'
80 >>> ================================ RESTART ================================
81 >>>
82
83 Traceback (most recent call last):
84 File "/tmp/guest-WX48w4/文档/py1.py", line 2, in <module>
85 file_name=open('myname.txt')
86 IOError: [Errno 2] No such file or directory: 'myname.txt'
87 >>> ================================ RESTART ================================
88 >>>
89 wrong
90 [Errno 2] No such file or directory: 'myname.txt'
91 >>> ================================ RESTART ================================
92 >>>
93 wrong
94 [Errno 2] No such file or directory: 'myname.txt'
95 >>> ================================ RESTART ================================
96 >>>
97
98 Traceback (most recent call last):
99 File "/tmp/guest-WX48w4/文档/py1.py", line 2, in <module>
100 name=a+'1'
101 NameError: name 'a' is not defined
102 >>> ================================ RESTART ================================
103 >>>
104 wrong
105 unsupported operand type(s) for +: 'int' and 'str'
106 >>> ================================ RESTART ================================
107 >>>
108
109 Traceback (most recent call last):
110 File "/tmp/guest-WX48w4/文档/py1.py", line 2, in <module>
111 int ('abc')
112 ValueError: invalid literal for int() with base 10: 'abc'
113 >>> ================================ RESTART ================================
114 >>>
115
116 Traceback (most recent call last):
117 File "/tmp/guest-WX48w4/文档/py1.py", line 5, in <module>
118 print (file_name.read())
119 NameError: name 'file_name' is not defined
120 >>> 1/0
121
122 Traceback (most recent call last):
123 File "<pyshell#57>", line 1, in <module>
124 1/0
125 ZeroDivisionError: integer division or modulo by zero
126 >>> raise 1/0
127
128 Traceback (most recent call last):
129 File "<pyshell#58>", line 1, in <module>
130 raise 1/0
131 ZeroDivisionError: integer division or modulo by zero
132 >>>
1 try:
2 int ('123')
3 #name=1+'1'
4 #file_name=open('myname.txt')
5 print (file_name.read())
6 file_name.close()
7 except IOError as reason: #eg1
8 print ('wrong\n'+str(reason))
9 except TypeError as reason:
10 print ('wrong\n'+str(reason))
11 except: #eg2
12 print ('wrong\n'+str(reason))
13 except (TypeError,IOError): #eg3
14 print ('wrong\n'+str(reason))
15 finally: #keep away from not closing the file
16 file_name.close()
17
18
