python 模块包裹

arlenmbx@arlenmbx-ThinkPad-X130e:~$ su root
密码： 
root@arlenmbx-ThinkPad-X130e:/home/arlenmbx# python
Python 2.7.10 (default, Oct 14 2015, 16:09:02) 
[GCC 5.2.1 20151010] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> dic={'f1':1,'f2':2,'f3':3}
>>> dic
{'f1': 1, 'f2': 2, 'f3': 3}
>>> for key in dic:
...     print dic[key]
... 
1
2
3
>>> print dic.keys()
['f1', 'f2', 'f3']
>>> print dic.values()
[1, 2, 3]
>>> print dic.items()
[('f1', 1), ('f2', 2), ('f3', 3)]
>>> dic.clear()
>>> print dic
{}
>>> type(dic)
<type 'dict'>
>>> f=open("a.py","r+")
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
IOError: [Errno 2] No such file or directory: 'a.py'
>>> f=open("a.txt","r+")
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
IOError: [Errno 2] No such file or directory: 'a.txt'
>>> f=open("/home/arlenmbx/桌面/pro.txt","r+")
>>> f.write("hello world")
>>> f.close()
>>> chmod 755 python
  File "<stdin>", line 1
    chmod 755 python
            ^
SyntaxError: invalid syntax
>>> exit()
root@arlenmbx-ThinkPad-X130e:/home/arlenmbx# chmod 755 b.py
chmod: 无法访问"b.py": 没有那个文件或目录
root@arlenmbx-ThinkPad-X130e:/home/arlenmbx# cd /home/arlenmbx/桌面
root@arlenmbx-ThinkPad-X130e:/home/arlenmbx/桌面# dir
a.py  a.py~  b.py  b.py~  pro.txt
root@arlenmbx-ThinkPad-X130e:/home/arlenmbx/桌面# chmod 755 b.py
root@arlenmbx-ThinkPad-X130e:/home/arlenmbx/桌面# ./b.py
hha
hha
hha
hha
hha
hha
hha
hha
hha
hha
root@arlenmbx-ThinkPad-X130e:/home/arlenmbx/桌面# import b as bb
程序 'import' 已包含在下列软件包中：
 * imagemagick
 * graphicsmagick-imagemagick-compat
请尝试：apt-get install <选定的软件包>
root@arlenmbx-ThinkPad-X130e:/home/arlenmbx/桌面# python
Python 2.7.10 (default, Oct 14 2015, 16:09:02) 
[GCC 5.2.1 20151010] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> def f(a,b,c):
...     print a
...     print b
...     print c
... 
>>> f(1,2,3)
1
2
3
>>> f(a=3,b=2,c=1)
3
2
1
>>> print(c=1,b=3,a=2)
  File "<stdin>", line 1
    print(c=1,b=3,a=2)
           ^
SyntaxError: invalid syntax
>>> f(c=1,b=3,a=2)
2
3
1
>>> def fun(*p):
...     type(p)
...     print p
... 
>>> fun(1,2,3)
(1, 2, 3)
>>> def fun(*p):
...     print type(p)
...     print p
... fun(1,2,3,4)
  File "<stdin>", line 4
    fun(1,2,3,4)
      ^
SyntaxError: invalid syntax
>>> fun(1,2,3,4)
(1, 2, 3, 4)
>>> fun(1,2,4,3,4,5)
(1, 2, 4, 3, 4, 5)
>>> def fun1(**p):
...     print type(p)
...     print p
... 
>>> fun1(1,2,)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: fun1() takes exactly 0 arguments (2 given)
>>> fun1(1,2,3)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: fun1() takes exactly 0 arguments (3 given)
>>> fun1(a=1,b=2)
<type 'dict'>
{'a': 1, 'b': 2}
>>> 
>>> def fun2(a,b,c):
...     print a
...     print b
...     print c
... 
>>> t=(3,4,5)
>>> fun2(*t)
3
4
5
>>>