Fix samples using GetDescription() on exceptions

try:
  ..
except py.GenericException as e:
  print(e.GetDescription())

never worked, as the description string is already
set as message of the raised python exception

try:
  ..
except py.GenericException as e:
  print(e)

is sufficient

samples/grab.py

@@ -65,7 +65,7 @@
 except genicam.GenericException as e:
     # Error handling.
     print("An exception occurred.")
-    print(e.GetDescription())
+    print(e)
     exitCode = 1
 
 sys.exit(exitCode)

samples/grabcameraevents.py

@@ -142,4 +142,4 @@ def OnImageGrabbed(self, camera, grabResult):
 
 except genicam.GenericException as e:
     # Error handling.
-    print("An exception occurred.", e.GetDescription())
+    print("An exception occurred.", e)

samples/grabchunkimage.py

@@ -131,5 +131,5 @@ def OnImageGrabbed(self, camera, grabResult):
 
 except genicam.GenericException as e:
     # Error handling.
-    print("An exception occurred.", e.GetDescription())
+    print("An exception occurred.", e)
     exitCode = 1

samples/grabmultiplecameras.py

@@ -93,7 +93,7 @@
 
 except genicam.GenericException as e:
     # Error handling
-    print("An exception occurred.", e.GetDescription())
+    print("An exception occurred.", e)
     exitCode = 1
 
 # Comment the following two lines to disable waiting on exit.

samples/grabusinggrabloopthread.py

@@ -65,4 +65,4 @@ def OnImageGrabbed(self, camera, grabResult):
                 break
     except genicam.GenericException as e:
         # Error handling.
-        print("An exception occurred.", e.GetDescription())
+        print("An exception occurred.", e)

samples/guiimagewindow.py

@@ -41,4 +41,4 @@
 except genicam.GenericException as e:
     # Error handling.
     print("An exception occurred.")
-    print(e.GetDescription())
+    print(e)

samples/helloworld.py

@@ -32,7 +32,7 @@ def main():
 
         return 0
     except genicam.GenericException as e:
-        print("Error ", e.GetDescription())
+        print("Error ", e)
 
         return -1
 

samples/startup.py

@@ -53,6 +53,6 @@
 
     except genicam.GenericException as e:
         # Error handling.
-        print("An exception occurred.", e.GetDescription())
+        print("An exception occurred.", e)
 
     camera.Close()

samples/utilityimageformatconverter.py

@@ -54,6 +54,6 @@ def show_image(image, message):
             targetImage.Save(pylon.ImageFileFormat_Png, filename)
 
     except genicam.GenericException as e:
-        print("Could not grab an image: ", e.GetDescription())
+        print("Could not grab an image: ", e)
 except genicam.GenericException as e:
-    print("An exception occurred. ", e.GetDescription())
+    print("An exception occurred. ", e)

samples/utilityimageformatconverter1.py

@@ -36,7 +36,7 @@ def grab_image():
         camera.Close()
         return result
     except genicam.GenericException as e:
-        print("Could not grab an image: ", e.GetDescription())
+        print("Could not grab an image: ", e)
 
 
 try:
@@ -67,4 +67,4 @@ def grab_image():
         target_image = converter.Convert(image)
         show_image(target_image, "Converted image.")
 except genicam.GenericException as e:
-    print("An exception occurred. ", e.GetDescription())
+    print("An exception occurred. ", e)