pi@raspberrypi ~ $ python
Python 2.7.3 (default, Mar 18 2014, 05:13:23)
[GCC 4.6.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> names = ('xupeng','yanfeng','dylon');
>>> print names[3];
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
IndexError: tuple index out of range
>>> print names[2];
dylon
>>> print names[1:2];
('yanfeng',)
>>> print names[0:2];
('xupeng', 'yanfeng')
>>> print names[-1];
dylon
>>> print names[-1]+names[0];
dylonxupeng
>>> print xupeng in names
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
NameError: name 'xupeng' is not defined
>>> print 'xupeng' in names
True
>>> print names[1]*3
yanfengyanfengyanfeng
>>> print names[::]
('xupeng', 'yanfeng', 'dylon')
>>> s='12345679'
>>> s[::-2]
'9642'
>>> i=-2
>>> for i in range(-1,-len(s),-1):
... print i;
File "<stdin>", line 2
print i;
^
IndentationError: expected an indented block
>>> print i;
-2
>>> len(s)
8
>>> for i in range(-1,-len(s),-1):
... print s[:i]
...
1234567
123456
12345
1234
123
12
1
>>> for i in range(-1,-len(s),-1):
... print s[:i];print i;
...
1234567
-1
123456
-2
12345
-3
1234
-4
123
-5
12
-6
1
-7
>>> for i in range(-1,-len(s),1):
... print s[:i];print i;
...
>>> for i in range(-1,-len(s),1):
... print s[:i];print i;
...
>>>
>>>
>>>
>>> for i in range(-1,-len(s),-1):
... print s[:i];print i;
...
1234567
-1
123456
-2
12345
-3
1234
-4
123
-5
12
-6
1
-7
>>> s[:-1]
'1234567'
>>> s[:2]
'12'
>>> s[:3]
'123'
>>> s[:-2]
'123456'
>>> dir(__builtins__)
['ArithmeticError', 'AssertionError', 'AttributeError', 'BaseException', 'BufferError', 'BytesWarning', 'DeprecationWarning', 'EOFError', 'Ellipsis', 'EnvironmentError', 'Exception', 'False', 'FloatingPointError', 'FutureWarning', 'GeneratorExit', 'IOError', 'ImportError', 'ImportWarning', 'IndentationError', 'IndexError', 'KeyError', 'KeyboardInterrupt', 'LookupError', 'MemoryError', 'NameError', 'None', 'NotImplemented', 'NotImplementedError', 'OSError', 'OverflowError', 'PendingDeprecationWarning', 'ReferenceError', 'RuntimeError', 'RuntimeWarning', 'StandardError', 'StopIteration', 'SyntaxError', 'SyntaxWarning', 'SystemError', 'SystemExit', 'TabError', 'True', 'TypeError', 'UnboundLocalError', 'UnicodeDecodeError', 'UnicodeEncodeError', 'UnicodeError', 'UnicodeTranslateError', 'UnicodeWarning', 'UserWarning', 'ValueError', 'Warning', 'ZeroDivisionError', '_', '__debug__', '__doc__', '__import__', '__name__', '__package__', 'abs', 'all', 'any', 'apply', 'basestring', 'bin', 'bool', 'buffer', 'bytearray', 'bytes', 'callable', 'chr', 'classmethod', 'cmp', 'coerce', 'compile', 'complex', 'copyright', 'credits', 'delattr', 'dict', 'dir', 'divmod', 'enumerate', 'eval', 'execfile', 'exit', 'file', 'filter', 'float', 'format', 'frozenset', 'getattr', 'globals', 'hasattr', 'hash', 'help', 'hex', 'id', 'input', 'int', 'intern', 'isinstance', 'issubclass', 'iter', 'len', 'license', 'list', 'locals', 'long', 'map', 'max', 'memoryview', 'min', 'next', 'object', 'oct', 'open', 'ord', 'pow', 'print', 'property', 'quit', 'range', 'raw_input', 'reduce', 'reload', 'repr', 'reversed', 'round', 'set', 'setattr', 'slice', 'sorted', 'staticmethod', 'str', 'sum', 'super', 'tuple', 'type', 'unichr', 'unicode', 'vars', 'xrange', 'zip']
