Mastering-Python-2e-code_2/CH_08_metaclasses/T_00_dynamically_creating_classes.rst

>>> class Spam(object):
...     eggs = 'my eggs'

>>> Spam = type('Spam', (object,), dict(eggs='my eggs'))

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>>> class Spam(object):
...     eggs = 'my eggs'

>>> spam = Spam()
>>> spam.eggs
'my eggs'
>>> type(spam)
<class '...Spam'>
>>> type(Spam)
<class 'type'>

>>> Spam = type('Spam', (object,), dict(eggs='my eggs'))

>>> spam = Spam()
>>> spam.eggs
'my eggs'
>>> type(spam)
<class '...Spam'>
>>> type(Spam)
<class 'type'>