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Error Handling

Valid Commands

If the command name is recognized by the debugger but the number of argument values is not correct or if the values of the arguments are not valid, then the debugger writes a message that identifies the problem.

In some cases, the debugger performs the command and discards the invalid argument or arguments. For example, if you type where xxx, unless xxx is the keyword full, the debugger outputs a traceback, discards xxx, and writes a message such as "Input discarded: xxx."

In other cases, both the valid command and invalid arguments are discarded, and the debugger writes one or more messages.


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