Move un/setenv from python backend to utils

source/carla_backend.py

@@ -1215,32 +1215,6 @@ class CarlaHostMeta(object):
         self.pathBinaries  = ""
         self.pathResources = ""
 
-        # use _putenv on windows
-        if not WINDOWS:
-            self.msvcrt = None
-            return
-
-        self.msvcrt = cdll.msvcrt
-        self.msvcrt._putenv.argtypes = [c_char_p]
-        self.msvcrt._putenv.restype = None
-
-    # set environment variable
-    def setenv(self, key, value):
-        environ[key] = value
-
-        if WINDOWS:
-            keyvalue = "%s=%s" % (key, value)
-            self.msvcrt._putenv(keyvalue.encode("utf-8"))
-
-    # unset environment variable
-    def unsetenv(self, key):
-        if environ.get(key) is not None:
-            environ.pop(key)
-
-        if WINDOWS:
-            keyrm = "%s=" % key
-            self.msvcrt._putenv(keyrm.encode("utf-8"))
-
     # Get how many engine drivers are available.
     @abstractmethod
     def get_engine_driver_count(self):

source/carla_database.py

@@ -1038,9 +1038,9 @@ class PluginRefreshW(QDialog):
         self.ui.group_options.setEnabled(False)
 
         if self.ui.ch_do_checks.isChecked():
-            self.host.unsetenv("CARLA_DISCOVERY_NO_PROCESSING_CHECKS")
+            gCarla.utils.unsetenv("CARLA_DISCOVERY_NO_PROCESSING_CHECKS")
         else:
-            self.host.setenv("CARLA_DISCOVERY_NO_PROCESSING_CHECKS", "true")
+            gCarla.utils.setenv("CARLA_DISCOVERY_NO_PROCESSING_CHECKS", "true")
 
         native, posix32, posix64, win32, win64 = (self.ui.ch_native.isChecked(),
                                                   self.ui.ch_posix32.isChecked(), self.ui.ch_posix64.isChecked(),

source/carla_utils.py

@@ -214,6 +214,34 @@ class CarlaUtils(object):
         self.lib.carla_pipe_client_destroy.argtypes = [CarlaPipeClientHandle]
         self.lib.carla_pipe_client_destroy.restype = None
 
+        # use _putenv on windows
+        if not WINDOWS:
+            self.msvcrt = None
+            return
+
+        self.msvcrt = cdll.msvcrt
+        self.msvcrt._putenv.argtypes = [c_char_p]
+        self.msvcrt._putenv.restype = None
+
+    # --------------------------------------------------------------------------------------------------------
+
+    # set environment variable
+    def setenv(self, key, value):
+        environ[key] = value
+
+        if WINDOWS:
+            keyvalue = "%s=%s" % (key, value)
+            self.msvcrt._putenv(keyvalue.encode("utf-8"))
+
+    # unset environment variable
+    def unsetenv(self, key):
+        if environ.get(key) is not None:
+            environ.pop(key)
+
+        if WINDOWS:
+            keyrm = "%s=" % key
+            self.msvcrt._putenv(keyrm.encode("utf-8"))
+
     # --------------------------------------------------------------------------------------------------------
 
     # Get the complete license text of used third-party code and features.

source/native-plugins/resources/carla-plugin

@@ -461,7 +461,7 @@ if __name__ == '__main__':
     except:
         winId = 0
 
-    host.setenv("CARLA_PLUGIN_EMBED_WINID", "0")
+    gCarla.utils.setenv("CARLA_PLUGIN_EMBED_WINID", "0")
 
     if LINUX and winId != 0 and not config_UseQt5:
         gui = CarlaEmbedW(host, winId)