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Added paragraph explaining that except clauses can't be empty; that

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pass can be used if needed.  By Dan Wolfe <wolfeman@apple.com>.
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Fred Drake 1999-08-24 22:14:57 +00:00
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@ -2751,6 +2751,10 @@ wildcard.
Use this with extreme caution, since it is easy to mask a real Use this with extreme caution, since it is easy to mask a real
programming error in this way! programming error in this way!
Each exception clause must have at least one line of executable code
in the block. Comments are not executable code. If you want the
exception clause to do nothing, use the \keyword{pass} statement.
The \keyword{try} \ldots\ \keyword{except} statement has an optional The \keyword{try} \ldots\ \keyword{except} statement has an optional
\emph{else clause}, which must follow all except clauses. It is \emph{else clause}, which must follow all except clauses. It is
useful to place code that must be executed if the try clause does not useful to place code that must be executed if the try clause does not