Exception when running memtier_benchmark

[shkediy]

I get this exception when starting memtier benchmark:

Exception in thread Thread-3:
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/threading.py", line 916, in _bootstrap_inner
    self.run()
  File "/app/app.py", line 102, in run
    if "[RUN" in curr_output:
TypeError: a bytes-like object is required, not 'str'

Looks like a pyhton2, pyhton3 issue. Changing app.py line 101 to:
curr_output = self._process.stdout.readline().decode()
solves it.