python自定义list，pythonlist,class MyList

python自定义list，pythonlist,class MyList

class MyList:    def __init__(self, start):        #self.wrapped = start[:]                 # Copy start: no side effects        self.wrapped = []                        # Make sure it's a list here.        for x in start: self.wrapped.append(x)    def __add__(self, other):        return MyList(self.wrapped + other)    def __mul__(self, time):        return MyList(self.wrapped * time)    def __getitem__(self, offset):        return self.wrapped[offset]    def __len__(self):        return len(self.wrapped)    def __getslice__(self, low, high):        return MyList(self.wrapped[low:high])    def append(self, node):        self.wrapped.append(node)    def __getattr__(self, name):                 # Other members: sort/reverse/etc        return getattr(self.wrapped, name)    def __repr__(self):        return self.wrappedif __name__ == '__main__':    x = MyList('spam')    print x    print x[0]    print x[1:]    print x + ['eggs']    print x * 3    x.append('a')    x.sort( )    for c in x: print c,