[issue9064] pdb enhancement up/down traversals

[Amaury Forgeot d'Arc]

Amaury Forgeot d'Arc <amauryfa at gmail.com> added the comment:

Two remarks:
- when int(arg) fails, an error message should be printed, like with the function do_commmands().
- the "for" loop seems unnecessary, something like "self.curindex -= nup" should be enough

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue9064>
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