Re: pp-eval-expression enhancements

[Richard Stallman]

    What about also replacing the binding of `M-:' so that it invokes
    `pp-eval-expression'?

I don't know if this is safe.  There may be Lisp objects for which
print works and pretty-print fails.  And others have pointed out
other problems (though we could avoid them by making a new command
which is just like eval-expression except that it pretty-prints).