1. copy.copy shallow copy only copies the parent object, and does not copy the internal child objects of the object.
2. copy.deepcopy deep copy object and its sub-objects
A good example:
import copy a = [1, 2, 3, 4, ['a', 'b']] #原始对象 b = a #赋值，传对象的引用 c = copy.copy(a) #对象拷贝，浅拷贝 d = copy.deepcopy(a) #对象拷贝，深拷贝 a.append(5) #修改对象a a[4].append('c') #修改对象a中的['a', 'b']数组对象 print 'a = ', a print 'b = ', b print 'c = ', c print 'd = ', d
d = [1, 2, 3, 4, ['a', 'b ']]
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