[Pythonclient] Add missing setup_path.py in environment folder

PythonClient/environment/setup_path.py

@@ -0,0 +1,52 @@
+# Import this module to automatically setup path to local airsim module
+# This module first tries to see if airsim module is installed via pip
+# If it does then we don't do anything else
+# Else we look up grand-parent folder to see if it has airsim folder
+#    and if it does then we add that in sys.path
+
+import os,sys,inspect,logging
+
+#this class simply tries to see if airsim 
+class SetupPath:
+    @staticmethod
+    def getDirLevels(path):
+        path_norm = os.path.normpath(path)
+        return len(path_norm.split(os.sep))
+
+    @staticmethod
+    def getCurrentPath():
+        cur_filepath = os.path.abspath(inspect.getfile(inspect.currentframe()))
+        return os.path.dirname(cur_filepath)
+
+    @staticmethod
+    def getGrandParentDir():
+        cur_path = SetupPath.getCurrentPath()
+        if SetupPath.getDirLevels(cur_path) >= 2:
+            return os.path.dirname(os.path.dirname(cur_path))
+        return ''
+
+    @staticmethod
+    def getParentDir():
+        cur_path = SetupPath.getCurrentPath()
+        if SetupPath.getDirLevels(cur_path) >= 1:
+            return os.path.dirname(cur_path)
+        return ''
+
+    @staticmethod
+    def addAirSimModulePath():
+        # if airsim module is installed then don't do anything else
+        #import pkgutil
+        #airsim_loader = pkgutil.find_loader('airsim')
+        #if airsim_loader is not None:
+        #    return
+
+        parent = SetupPath.getParentDir()
+        if parent !=  '':
+            airsim_path = os.path.join(parent, 'airsim')
+            client_path = os.path.join(airsim_path, 'client.py')
+            if os.path.exists(client_path):
+                sys.path.insert(0, parent)
+        else:
+            logging.warning("airsim module not found in parent folder. Using installed package (pip install airsim).")
+
+SetupPath.addAirSimModulePath()