Use platform specific command to find path (#1143)

* Use platform specific command to find path

* Remove usage of which as it is being deprecated

* Update based on PR comments.

* Cleanup

* Remove blank line

tests/test_console.py

@@ -28,6 +28,8 @@
 import sys
 import os
 import subprocess
+import sysconfig
+import platform
 
 try:
     # python2
@@ -81,18 +83,15 @@ def setUp(self):
     def run_test(self):
         if self.SHELL_OUT:
             # make sure its on the path
-            try:
-                subprocess.check_call(
-                    [
-                        "which", sys.argv[0]
-                    ],
-                    stdout=subprocess.PIPE
-                )
-            except subprocess.CalledProcessError:
+            console_script = os.path.join(sysconfig.get_path('scripts'), sys.argv[0])
+            if platform.system() == 'Windows':
+                console_script += '.exe'
+
+            if not os.path.exists(console_script):
                 self.fail(
-                    "Could not find '{}' on $PATH.  Tests that explicitly shell"
+                    "Could not find '{}'.  Tests that explicitly shell"
                     " out can be disabled by setting the environment variable "
-                    "OTIO_DISABLE_SHELLOUT_TESTS.".format(sys.argv[0])
+                    "OTIO_DISABLE_SHELLOUT_TESTS.".format(console_script)
                 )
 
             # actually run the test (sys.argv is already populated correctly)