[issue1565525] tracebacks eat up memory by holding references to locals and globals when they are not wanted

[A.M. Kuchling]

A.M. Kuchling added the comment:

Here's a patch implementing traceback.clear_tb_frames().  (Feel free to bikeshed about the name.)

One more substantial question: the top frame of the traceback is possibly still running.  Currently the code skips it by doing an initial 'tb = tb.tb_next'.  Would it be better to catch and ignore the RuntimeError 
from frame.clear()?

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stage: needs patch -> patch review
Added file: http://bugs.python.org/file31668/clear-tb-frames.txt

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