>>> 
>>> D = {'one':1, 'two':2, 'three':3}
>>> D.keys()
['three', 'two', 'one']
>>> D.values()
[3, 2, 1]
>>> D.items()
[('three', 3), ('two', 2), ('one', 1)]
>>> D.has_key('one')
True
>>> D.has_key['four']

Traceback (most recent call last):
  File "<pyshell#144>", line 1, in -toplevel-
    D.has_key['four']
TypeError: unsubscriptable object
>>> if D.has_key('four'):
	print D['four']

	
>>> D.clear()
>>> D
{}
>>> D = {'one':1, 'two':2, 'three':3}
>>> E = D.copy()
>>> D
{'three': 3, 'two': 2, 'one': 1}
>>> E
{'one': 1, 'three': 3, 'two': 2}
>>> E['one'] = '111'
>>> E
{'one': '111', 'three': 3, 'two': 2}
>>> D
{'three': 3, 'two': 2, 'one': 1}
>>> D['one']
1
>>> D['four']

Traceback (most recent call last):
  File "<pyshell#158>", line 1, in -toplevel-
    D['four']
KeyError: 'four'
>>> D.get('one')
1
>>> D.get('four')
>>> print D.get('four')
None
>>> D.get('four', 4)
4
>>> D
{'three': 3, 'two': 2, 'one': 1}
>>> D.setdefault('four')
>>> D
{'four': None, 'three': 3, 'two': 2, 'one': 1}
>>> D.setdefault('five', 5)
5
>>> D
{'four': None, 'three': 3, 'five': 5, 'two': 2, 'one': 1}
>>> E
{'one': '111', 'three': 3, 'two': 2}
>>> E.update(D)
>>> E
{'three': 3, 'one': 1, 'four': None, 'five': 5, 'two': 2}
>>> E is D
False
>>> E == D
True
>>> D.popitem()
('four', None)
>>> D
{'three': 3, 'five': 5, 'two': 2, 'one': 1}
>>> key, value = D.popitem()
>>> key
'three'
>>> value
3
>>> D
{'five': 5, 'two': 2, 'one': 1}
>>> 'fine' in D
False
>>> 'five' in D
True
>>> D.has_key('five')
True
>>> 
>>> 
>>> 
>>> globals()
{'key': 'three', 'sub': <function sub at 0x00D5FF30>, 'E': {'three': 3, 'one': 1, 'four': None, 'five': 5, 'two': 2}, 'multiple_lines': '\nfirst line\nsecond line\nthird line\n', '__builtins__': <module '__builtin__' (built-in)>, 'str2': "That's right.", 'str1': 'Python is simple!', 'j': 99, 'L': [1, 2, 3, 'spam', 'ham'], 'value': 3, 'str3': "Don't just play.", 's': 'spam and ham', 'add': <function add at 0x00D5F530>, 'long_str': 'long linecontinued..', 'action': {0: <function add at 0x00D5F530>, 1: <function sub at 0x00D5FF30>}, '__name__': '__main__', 'i': 98, '__doc__': None, 'D': {'five': 5, 'two': 2, 'one': 1}}
>>> 
>>> locals()
{'key': 'three', 'sub': <function sub at 0x00D5FF30>, 'E': {'three': 3, 'one': 1, 'four': None, 'five': 5, 'two': 2}, 'multiple_lines': '\nfirst line\nsecond line\nthird line\n', '__builtins__': <module '__builtin__' (built-in)>, 'str2': "That's right.", 'str1': 'Python is simple!', 'j': 99, 'L': [1, 2, 3, 'spam', 'ham'], 'value': 3, 'str3': "Don't just play.", 's': 'spam and ham', 'add': <function add at 0x00D5F530>, 'long_str': 'long linecontinued..', 'action': {0: <function add at 0x00D5F530>, 1: <function sub at 0x00D5FF30>}, '__name__': '__main__', 'i': 98, '__doc__': None, 'D': {'five': 5, 'two': 2, 'one': 1}}
>>> 
>>> def f(a,b):
	x = a + b
	y = a - b
	print locals()

	
>>> f(1,2)
{'y': -1, 'x': 3, 'b': 2, 'a': 1}
>>> 
>>> def f(a,b):
	x = a + b
	y = a - b
	print locals()
	print globals()

	
>>> f(1,2)
{'y': -1, 'x': 3, 'b': 2, 'a': 1}
{'key': 'three', 'sub': <function sub at 0x00D5FF30>, 'E': {'three': 3, 'one': 1, 'four': None, 'five': 5, 'two': 2}, 'multiple_lines': '\nfirst line\nsecond line\nthird line\n', 'f': <function f at 0x00D890B0>, '__builtins__': <module '__builtin__' (built-in)>, 'str2': "That's right.", 'str1': 'Python is simple!', 'j': 99, 'L': [1, 2, 3, 'spam', 'ham'], 'value': 3, 'str3': "Don't just play.", 's': 'spam and ham', 'add': <function add at 0x00D5F530>, 'long_str': 'long linecontinued..', 'action': {0: <function add at 0x00D5F530>, 1: <function sub at 0x00D5FF30>}, '__name__': '__main__', 'i': 98, '__doc__': None, 'D': {'five': 5, 'two': 2, 'one': 1}}
>>> 
>>> 
>>> class C:
	a = 1
	b = 2

	
>>> C.__dict__
{'a': 1, '__module__': '__main__', 'b': 2, '__doc__': None}
>>> cc = C()
>>> cc.x = 1
>>> cc.y = 2
>>> cc.__dict__
{'y': 2, 'x': 1}
>>> cc.a
1
>>> cc.b
2
>>> dir(cc)
['__doc__', '__module__', 'a', 'b', 'x', 'y']
>>> 
>>> def f():
	pass

>>> f.a = 2
>>> f.b = 3
>>> f.a
2
>>> f.b
3
>>> f.__dict__
{'a': 2, 'b': 3}
>>> 
>>> 
>>> 
>>> 
>>> D
{'five': 5, 'two': 2, 'one': 1}
>>> for key in D.keys():
	print key, D[key]

	
five 5
two 2
one 1
>>> for key in D:
	print key, D[key]

	
five 5
two 2
one 1
>>> 
>>> items = D.items()
>>> items
[('five', 5), ('two', 2), ('one', 1)]
>>> items.sort()
>>> for k, v in items:
	print k, v

	
five 5
one 1
two 2
>>>