pydoc req thread; readline req NO thread

[skip at pobox.com]

    Michael> My current theory is that this is a bug in readline.  Of
    Michael> course, if anyone finds different, then I'm sure patches would
    Michael> be most gratefully received!

That suggests trying editline or one of the recently posted readline
replacements might help.

-- 
Skip Montanaro (skip at pobox.com)
(847)971-7098