why i can't get the sourcecode with inspect module?

Date	2014-08-20 11:05 +0800
From	luofeiyu <elearn2014@gmail.com>
Subject	why i can't get the sourcecode with inspect module?
Newsgroups	comp.lang.python
Message-ID	<mailman.13186.1408503952.18130.python-list@python.org> (permalink)

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 >>> import inspect
 >>> def changer(x,y):
...     return(x+y)
...
 >>> dir()
['__builtins__', '__doc__', '__loader__', '__name__', '__package__', '__
  'changer', 'inspect']
 >>> inspect.getsource(changer)
Traceback (most recent call last):
   File "<stdin>", line 1, in <module>
   File "D:\Python34\lib\inspect.py", line 830, in getsource
     lines, lnum = getsourcelines(object)
   File "D:\Python34\lib\inspect.py", line 819, in getsourcelines
     lines, lnum = findsource(object)
   File "D:\Python34\lib\inspect.py", line 667, in findsource
     raise OSError('could not get source code')
OSError: could not get source code
 >>>

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why i can't get the sourcecode with inspect module? luofeiyu <elearn2014@gmail.com> - 2014-08-20 11:05 +0800
  Re: why i can't get the sourcecode with inspect module? Steven D'Aprano <steve@pearwood.info> - 2014-08-20 05:00 +0000

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