caused it.
The preceding part of the error message shows the context where the exception
-happened, in the form of a stack traceback. In general it contains a stack
+occurred, in the form of a stack traceback. In general it contains a stack
traceback listing source lines; however, it will not display lines read from
standard input.
"""
print('-'*40, file=sys.stderr)
- print('Exception happened during processing of request from',
+ print('Exception occurred during processing of request from',
client_address, file=sys.stderr)
import traceback
traceback.print_exc()