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(python2.1-lib.info)Traceback Example

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Traceback Example
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This simple example implements a basic read-eval-print loop, similar to
(but less useful than) the standard Python interactive interpreter
loop.  For a more complete implementation of the interpreter loop,
refer to the `code' module.

     import sys, traceback
     
     def run_user_code(envdir):
         source = raw_input(">>> ")
         try:
             exec source in envdir
         except:
             print "Exception in user code:"
             print '-'*60
             traceback.print_exc(file=sys.stdout)
             print '-'*60
     
     envdir = {}
     while 1:
         run_user_code(envdir)