Recursive Generator Error?

Newsgroups	comp.lang.python
Date	2012-10-21 16:29 -0700
Message-ID	<d1dbc8a7-1ec6-474c-96d7-b95a066125dd@googlegroups.com> (permalink)
Subject	Recursive Generator Error?
From	David <zhushenli@gmail.com>

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I have a tree-like data structure, the basic elements are hash tables,
and they are grouped into lists, like [[{'a':1},[{'b':2}]]].
And I want to flat the lists and visit hash table one by one, like {'a':1}, {'b':2}.
But my program didn't work as I wish. When it entered the 2nd
flat_yield, it threw a GeneratorExit. Is there anything wrong?
Thank you very much!

#- - - - - - - - - - 
def flat_yield(tbl_list):
    for t in tbl_list:
        if type(t) == type({}):
            yield t
        elif type(t) == type([]):
            flat_yield(t)
a = [[{'a':1},[{'b':2}]]]
for i in flat_yield(a):
    print i

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Thread

Recursive Generator Error? David <zhushenli@gmail.com> - 2012-10-21 16:29 -0700
  Re: Recursive Generator Error? Terry Reedy <tjreedy@udel.edu> - 2012-10-21 19:59 -0400
    Re: Recursive Generator Error? David <zhushenli@gmail.com> - 2012-10-21 17:40 -0700
    Re: Recursive Generator Error? David <zhushenli@gmail.com> - 2012-10-21 17:40 -0700
      Re: Recursive Generator Error? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-10-22 02:36 +0000

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