[issue14507] Segfault with deeply nested starmap calls

[Raymond Hettinger]

Raymond Hettinger <raymond.hettinger at gmail.com> added the comment:

ISTM this would do more harm than good.  An introduce a new requirement for all iterators, introducing new arbitrary limits and slowing down all iterators (this is currently a simple, fast, light-weight protocol). 

Also this seems to be just a CPython issue (the JVM manages its own stack).   Please don't muck-up the iterator protocol over this non-issue.  It isn't worth it.  If someone wants a stackless version of Python, they should use a stackless version of Python.

There are other crashers we choose to ignore (involving gc.getreferrers, bytecode hacks, ctypes, etc).  I think this should go in that category and I would be happy to add a note to that effect in the docs for itertools.

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<http://bugs.python.org/issue14507>
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