Compute divided range only once, do not expose it outsided of paginator

boards/abstracts/paginator.py

@@ -40,7 +40,7 b' class DividedPaginator(Paginator):'
         end = min(self.num_pages - self.lookaround_size, index + self.lookaround_size + 1)
         return self.page_range[start:end]
 
-    def get_divided_range(self):
+    def _get_divided_range(self):
         dr = list()
 
         dr += self._left_range()
@@ -53,11 +53,11 b' class DividedPaginator(Paginator):'
 
         return dr
 
-    def get_dividers(self):
+    def get_dividers(self, divided_range):
         dividers = []
 
         prev_page = 1
-        for page in self.get_divided_range():
+        for page in divided_range:
             if page - prev_page > 1:
                 dividers.append(page)
 
@@ -91,8 +91,9 b' class DividedPaginator(Paginator):'
     def get_page_url_list(self):
         output = []
 
-        dividers = self.get_dividers()
-        for page in self.get_divided_range():
+        divided_range = self._get_divided_range()
+        dividers = self.get_dividers(divided_range)
+        for page in divided_range:
             if page in dividers:
                 output.append('...')