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$ python3.4 -m trace -l 
Traceback (most recent call last):
 File "/usr/local/lib/python3.4/runpy.py", line 170, in _run_module_as_main
 "__main__", mod_spec)
 File "/usr/local/lib/python3.4/runpy.py", line 85, in _run_code
 exec(code, run_globals)
 File "/usr/local/lib/python3.4/trace.py", line 858, in <module>
 main()
 File "/usr/local/lib/python3.4/trace.py", line 787, in main
 progname = prog_argv[0]
IndexError: list index out of range
I would expect something more clear to be printed, like the program usage helper you get in this case:
$ python3.4 -m trace 
/usr/local/lib/python3.4/trace.py: must specify one of --trace, --count, --report, --listfuncs, or --trackcalls