Traceback

... which appears in the top line of the traceback, looking for the point at which the system is likely to have become corrupted . The ability to read and use tracebacks is a skill no MOO administrator should be without .

In programs where functions can be called from multiple places , the call stack can help you determine which call led to the error . Python displays the traceback whenever a raised exception goes unhandled . But you can also obtain it[…]

This is a single-stage traceback. It begins by announcing itself as a traceback and then gives a location in line 1 of "<stdin>" (i.e., your typing, or standard input). It also specifies any method that the exception is raised in: in[…]