--- a/controls/EnhancedStatusBar.py	Fri Oct 12 10:42:47 2018 +0300
+++ b/controls/EnhancedStatusBar.py	Fri Oct 12 11:14:34 2018 +0300
@@ -222,19 +222,20 @@
             self._curPos += 1
 
         if self.GetFieldsCount() <= pos:
-            raise "\nERROR: EnhancedStatusBar has a max of %d items, you tried to set item #%d" % (self.GetFieldsCount(), pos)
+            raise ValueError("\nERROR: EnhancedStatusBar has a max of %d items, you tried to set item #%d" %
+                             (self.GetFieldsCount(), pos))
 
         if horizontalalignment not in [ESB_ALIGN_CENTER_HORIZONTAL, ESB_EXACT_FIT,
                                        ESB_ALIGN_LEFT, ESB_ALIGN_RIGHT]:
-            raise '\nERROR: Parameter "horizontalalignment" Should Be One Of '\
-                  '"ESB_ALIGN_CENTER_HORIZONTAL", "ESB_ALIGN_LEFT", "ESB_ALIGN_RIGHT"' \
-                  '"ESB_EXACT_FIT"'
+            raise ValueError('\nERROR: Parameter "horizontalalignment" Should Be One Of '
+                             '"ESB_ALIGN_CENTER_HORIZONTAL", "ESB_ALIGN_LEFT", "ESB_ALIGN_RIGHT"'
+                             '"ESB_EXACT_FIT"')
 
         if verticalalignment not in [ESB_ALIGN_CENTER_VERTICAL, ESB_EXACT_FIT,
                                      ESB_ALIGN_TOP, ESB_ALIGN_BOTTOM]:
-            raise '\nERROR: Parameter "verticalalignment" Should Be One Of '\
-                  '"ESB_ALIGN_CENTER_VERTICAL", "ESB_ALIGN_TOP", "ESB_ALIGN_BOTTOM"' \
-                  '"ESB_EXACT_FIT"'
+            raise ValueError('\nERROR: Parameter "verticalalignment" Should Be One Of '
+                             '"ESB_ALIGN_CENTER_VERTICAL", "ESB_ALIGN_TOP", "ESB_ALIGN_BOTTOM"'
+                             '"ESB_EXACT_FIT"')
 
         try:
             self.RemoveChild(self._items[pos].widget)

--- a/plcopen/structures.py	Fri Oct 12 10:42:47 2018 +0300
+++ b/plcopen/structures.py	Fri Oct 12 11:14:34 2018 +0300
@@ -266,7 +266,7 @@
                             Function_decl_copy = Function_decl.copy()
                             Current_section["list"].append(Function_decl_copy)
             else:
-                raise "First function must be in a category"
+                raise ValueError("First function must be in a category")
 
     return Standard_Functions_Decl
 

--- a/tests/tools/check_source.sh	Fri Oct 12 10:42:47 2018 +0300
+++ b/tests/tools/check_source.sh	Fri Oct 12 11:14:34 2018 +0300
@@ -371,6 +371,7 @@
     enable=$enable,W1652          # (deprecated-types-field) Accessing a deprecated fields on the types module
     enable=$enable,W1611          # (standarderror-builtin) StandardError built-in referenced
     enable=$enable,W1624          # (indexing-exception) Indexing exceptions will not work on Python 3
+    enable=$enable,W1625          # (raising-string) Raising a string exception
     # enable=
 
     options=