30分请教个python小程序的执行错误

Python code

class ShortInputException(Exception):    def __int__(self, length, atleast):        Exception.__int__(self)        self.length = length        self.atleast = atleastl = 5try:    s = raw_input('Enter something: ')    if len(s) < l:        raise ShortInputException(len(s), l)except EOFError:    print 'EOF error, Please check ur input'except ShortInputException, x:    print 'The input length is %d, should atleast be %d' % (x.length, x.atleast)else:    print 'No exception was raised'

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上面是源码， 在IDE中运行出现如下错误:
Traceback (most recent call last):
File "C:\Python25\Lib\site-packages\pythonwin\pywin\framework\scriptutils.py", line 310, in RunScript
exec codeObject in __main__.__dict__
File "D:\Python\raise except.py", line 16, in <module>
print 'The input length is %d, should atleast be %d' % (x.length, x.atleast)
AttributeError: 'ShortInputException' object has no attribute 'length'

大意就是x没有length属性， 程序是从python简明教程里基本扒下来的，
请教代码哪里有问题？

[解决办法]
汗啊！想来想去还以为是Python的bug

你实际写的：

Python code

    def __int__(self, length, atleast):
[解决办法]
晕，发现的比你慢了。呵呵，刚打开就去吃东西了，嘿嘿。