[issue4327] Patch: simplify complex constant assignment statements

[Jeremy Hylton]

Jeremy Hylton <jeremy at alum.mit.edu> added the comment:

It seems generally useful to have a helper function to replace a range
of nodes in a sequence of statements with another sequence of nodes.  A
general API like that would allow you to insert or delete nodes as well
as replacing one node with a set of nodes.  It seems like that could be
implemented pretty independently of this patch, and would then simplify
it.  I don't think it's a good idea to add the Seq type just to simplify
the implementation.

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nosy: +jhylton

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