don't download the file which exist

driveit.py

@@ -1,5 +1,5 @@
 from base import SharedBase
-
+import os
 
 def main_loop(ref_box):
     for ref_tuple in ref_box:
@@ -8,8 +8,11 @@ def main_loop(ref_box):
         for page in range(1, total_page + 1):
             link = website_object.get_image_link(parent_link, page)
             try:
-                website_object.down(comic_name, parent_link, link, parent_title, page)
-                print('%s page %d has been downloaded successfully' % (parent_title, page))
+                if os.path.exists(base.get_path(comic_name, parent_title, page, 'jpg')):
+                    print('%s page %d has been downloaded before' % (parent_title, page))
+                else:
+                    website_object.down(comic_name, parent_link, link, parent_title, page)
+                    print('%s page %d has been downloaded successfully' % (parent_title, page))
             except:
                 print('Error occurred when downloading %s, Page %d.' % (parent_title, page))
 

sites.py

@@ -65,22 +65,13 @@ def get_name(self):
 
     def get_parent_info(self):
         ref_box = []
-        soup_box = self.flyleaf_soup.findAll('ul', {'class': 'nr6 lan2', 'id': 'cbc_1'})
+        soup_box = self.flyleaf_soup.findAll('ul', {'class': 'nr6 lan2'})
         for border in soup_box:
             for li in border.findAll('li'):
                 if li.a.has_attr('title'):
                     ref_link = li.a['href']
                     ref_title = li.a['title']
-                    print(ref_link,ref_title)
                     ref_box.insert(0, (ref_title, ref_link))
-        soup_box = self.flyleaf_soup.findAll('ul', {'class': 'nr6 lan2', 'id': 'cbc_2'})
-        for border in soup_box:
-           for li in border.findAll('li'):
-               if li.a.has_attr('title'):
-                   ref_link = li.a['href']
-                   ref_title = li.a['title']
-                   print(ref_link,ref_title)
-                   ref_box.insert(0, (ref_title, ref_link))
         return ref_box
 
     def get_page_info(self, parent_link):