After the latest changes I don't understand how I'm supposed to run translated Python 3 benchmarks:

$ ./perf.py -fb mako_v2 ../opt/python ../x32opt/python 
Running mako_v2...
INFO:root:Running ../x32opt/python ./performance/bm_mako_v2.py -n 50
Traceback (most recent call last):
  File "./perf.py", line 2460, in <module>
    main(sys.argv[1:])
  File "./perf.py", line 2416, in main
    options)))
  File "./perf.py", line 1528, in BM_mako_v2
    return SimpleBenchmark(MeasureMakoV2, *args, **kwargs)
  File "./perf.py", line 714, in SimpleBenchmark
    *args, **kwargs)
  File "./perf.py", line 1524, in MeasureMakoV2
    iteration_scaling=10)
  File "./perf.py", line 1113, in MeasureGeneric
    inherit_env=options.inherit_env)
  File "./perf.py", line 1071, in CallAndCaptureOutput
    raise RuntimeError("Benchmark died: " + stderr.decode('latin1'))
RuntimeError: Benchmark died: Traceback (most recent call last):
  File "./performance/bm_mako_v2.py", line 26, in <module>
    from mako.template import Template
  File "/home/antoine/cpython/benchmarks/lib/Mako-0.7.3/mako/template.py", line 622
    exec code in module.__dict__, module.__dict__
            ^
SyntaxError: invalid syntax