🔧 Replaced deprecated FancyURLopener

update.py

@@ -281,19 +281,21 @@ def fetch_url(src, dst):
     Fetch file from URL src and save it to dst.
     """
     import urllib.request
-    class URLopener(urllib.request.FancyURLopener):
-        def http_error_default(self, url, fp, errcode, errmsg, headers):
-            sys.stderr.write("ERROR: could not fetch {0}\n".format(url))
-            sys.exit(-1)
-
+    import shutil
     dirname = os.path.dirname(dst)
     if dirname != '':
         if not os.path.isdir(dirname):
             os.makedirs(dirname)
 
-    opener = URLopener()
-    opener.retrieve(src, dst)
-
+    try:
+        with urllib.request.urlopen(src) as response, open(dst, 'wb') as out_file:
+            shutil.copyfileobj(response, out_file)
+    except urllib.error.HTTPError as e:
+        sys.stderr.write(f"\n\nERROR: could not fetch {src}, request failed with error {e.code} \n\t {e.reason}\n")
+        sys.exit(-1)
+    except urllib.error.URLError as e:
+        sys.stderr.write(f"\n\nERROR: could not fetch {src}, {e.reason}\n")
+        sys.exit(-1)
 
 if __name__ == '__main__':
     check_for_yaml()