message: Adding sys.executable to other pip calls
diff: @@ -121,8 +121,8 @@ def run_ngtf_pytests(venv_dir, build_dir):
  load_venv(venv_dir)
  # Next run the ngraph-tensorflow python tests
  - command_executor(["pip", "install", "-U", "pytest"])
  - command_executor(["pip", "install", "-U", "psutil"])
  + command_executor([sys.executable, "-m", "pip", "install", "-U", "pytest"])
  + command_executor([sys.executable, "-m", "pip", "install", "-U", "psutil"])
  command_executor([
  "python", "-m", "pytest", ('--junitxml=%s/xunit_pytest.xml' % build_dir)
  ],
  @@ -147,9 +147,10 @@ def run_ngtf_pytests_from_artifacts(artifacts_dir):
  os.chdir(test_dir)
  # Next run the ngraph-tensorflow python tests
  - command_executor(["pip", "install", "-U", "pytest"])
  - command_executor(["pip", "install", "-U", "psutil"])
  - command_executor([
  + command_executor([sys.executable, "-m", "pip", "install", "-U", "pytest"])
  + command_executor([sys.executable, "-m", "pip", "install", "-U", "psutil"])
  +
  + command_executor([sys.executable, "-m",
  "python", "-m", "pytest",
  ('--junitxml=%s/xunit_pytest.xml' % artifacts_dir)
  ])
  