|  | # Copyright (c) 2012 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. | 
|  |  | 
|  | import os | 
|  | import sys | 
|  |  | 
|  |  | 
|  | _CATAPULT_PATH = os.path.abspath(os.path.join( | 
|  | os.path.dirname(__file__), '..', '..', '..', 'third_party', 'catapult')) | 
|  |  | 
|  | _DEVIL_PATH = os.path.join(_CATAPULT_PATH, 'devil') | 
|  |  | 
|  | _PYTRACE_PATH = os.path.join(_CATAPULT_PATH, 'common', 'py_trace_event') | 
|  |  | 
|  | _PY_UTILS_PATH = os.path.join(_CATAPULT_PATH, 'common', 'py_utils') | 
|  |  | 
|  | _TRACE2HTML_PATH = os.path.join(_CATAPULT_PATH, 'tracing') | 
|  |  | 
|  |  | 
|  | if _DEVIL_PATH not in sys.path: | 
|  | sys.path.append(_DEVIL_PATH) | 
|  |  | 
|  | if _PYTRACE_PATH not in sys.path: | 
|  | sys.path.append(_PYTRACE_PATH) | 
|  |  | 
|  | if _PY_UTILS_PATH not in sys.path: | 
|  | sys.path.append(_PY_UTILS_PATH) | 
|  |  | 
|  | if _TRACE2HTML_PATH not in sys.path: | 
|  | sys.path.append(_TRACE2HTML_PATH) |