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author | Michael W. Hudson <mwh@python.net> | 2005-03-04 14:33:32 (GMT) |
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committer | Michael W. Hudson <mwh@python.net> | 2005-03-04 14:33:32 (GMT) |
commit | a2a9888f22a7811938d2f708344e01dfc000841c (patch) | |
tree | a42cfe774d57c4ba8c87734b27979be32a437edb /Doc/ref/ref7.tex | |
parent | c72dd38f30eb034f33e5efa1029ed17ca773d267 (diff) | |
download | cpython-a2a9888f22a7811938d2f708344e01dfc000841c.zip cpython-a2a9888f22a7811938d2f708344e01dfc000841c.tar.gz cpython-a2a9888f22a7811938d2f708344e01dfc000841c.tar.bz2 |
Updates to the exceptions documentation (this is my patch #1156102).
Diffstat (limited to 'Doc/ref/ref7.tex')
-rw-r--r-- | Doc/ref/ref7.tex | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/Doc/ref/ref7.tex b/Doc/ref/ref7.tex index 5e50a74..7459412 100644 --- a/Doc/ref/ref7.tex +++ b/Doc/ref/ref7.tex @@ -223,11 +223,11 @@ clause, if present, must be last; it matches any exception. For an except clause with an expression, that expression is evaluated, and the clause matches the exception if the resulting object is ``compatible'' with the exception. An object is compatible with an exception if it -is either the object that identifies the exception, or (for exceptions -that are classes) it is a base class of the exception, or it is a -tuple containing an item that is compatible with the exception. Note -that the object identities must match, i.e. it must be the same -object, not just an object with the same value. +is the class or a base class of the exception object, a tuple +containing an item compatible with the exception, or, in the +(deprecated) case of string exceptions, is the raised string itself +(note that the object identities must match, i.e. it must be the same +string object, not just a string with the same value). \kwindex{except} If no except clause matches the exception, the search for an exception @@ -239,14 +239,14 @@ and a search starts for the new exception in the surrounding code and on the call stack (it is treated as if the entire \keyword{try} statement raised the exception). -When a matching except clause is found, the exception's parameter is -assigned to the target specified in that except clause, if present, -and the except clause's suite is executed. All except clauses must -have an executable block. When the end of this block -is reached, execution continues normally after the entire try -statement. (This means that if two nested handlers exist for the same -exception, and the exception occurs in the try clause of the inner -handler, the outer handler will not handle the exception.) +When a matching except clause is found, the exception is assigned to +the target specified in that except clause, if present, and the except +clause's suite is executed. All except clauses must have an +executable block. When the end of this block is reached, execution +continues normally after the entire try statement. (This means that +if two nested handlers exist for the same exception, and the exception +occurs in the try clause of the inner handler, the outer handler will +not handle the exception.) Before an except clause's suite is executed, details about the exception are assigned to three variables in the |