```$ usr bin time l bench attrs py 30 32 real 30 15 user 0 0 Pants #development

```$ /usr/bin/time -l ./bench_attrs.py 30....

rough-minister-58256

08/16/2016, 10:13 PM

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$ /usr/bin/time -l ./bench_attrs.py 
       30.32 real        30.15 user         0.08 sys
   5713920  maximum resident set size