no import pty

tools/sharding_supervisor/sharding_supervisor.py

 #!/usr/bin/env python
 # Copyright (c) 2011 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Shards a given test suite and runs the shards in parallel.
 
 ShardingSupervisor is called to process the command line options and creates
 the specified number of worker threads. These threads then run each shard of
 the test in a separate process and report on the results. When all the shards
 have been completed, the supervisor reprints any lines indicating a test
 failure for convenience. If only one shard is to be run, a single subprocess
 is started for that shard and the output is identical to gtest's output.
 """
 
 
 from cStringIO import StringIO
 import optparse
 import os
-import pty
 import Queue
 import random
 import re
 import subprocess
 import sys
 import threading
 
 
-SS_USAGE = "Usage: python %prog [options] path/to/test [gtest_args]"
+SS_USAGE = "python %prog [options] path/to/test [gtest_args]"
 SS_DEFAULT_NUM_CORES = 4
 SS_DEFAULT_SHARDS_PER_CORE = 5 # num_shards = cores * SHARDS_PER_CORE
 SS_DEFAULT_RUNS_PER_CORE = 1 # num_workers = cores * RUNS_PER_CORE
 
 
 def DetectNumCores():
   """Detects the number of cores on the machine.
 
   Returns:
     The number of cores on the machine or DEFAULT_NUM_CORES if it could not
@@ skipping 304 matching lines @@
 
   # shard and run the whole test
   ss = ShardingSupervisor(args[0], num_shards, num_runs, options.color,
                           options.reorder, gtest_args)
   return ss.ShardTest()
 
 
 if __name__ == "__main__":
   sys.exit(main())