issue #1700 replace raise Exception()

src/Mod/PartDesign/Scripts/Epitrochoid.py

@@ -32,7 +32,7 @@ class Epitrochoid:
         z=0
         
         if r2 == 0:
-            raise Exception("Exterior radius must not be zero")
+            raise ValueError("Exterior radius must not be zero")
 
         for i in range(steps):
             if i==0:
@@ -66,4 +66,4 @@ def makeEpitrochoid():
     doc.recompute()
 
 if __name__ == "__main__": #feature will be generated after macro execution
-    makeEpitrochoid()
+    makeEpitrochoid()