From dbdf30c07bdc059025d7ebcedd0c3e24e9b5b26c Mon Sep 17 00:00:00 2001
From: Hartmut Holzgraefe <hartmut@php.net>
Date: Sat, 23 Sep 2017 10:25:05 +0000
Subject: [PATCH] can't use map() for pure side effects in Python 3

---
 ocitysmap/maplib/overview_grid.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/ocitysmap/maplib/overview_grid.py b/ocitysmap/maplib/overview_grid.py
index 3a7df9e..6f96990 100644
--- a/ocitysmap/maplib/overview_grid.py
+++ b/ocitysmap/maplib/overview_grid.py
@@ -64,7 +64,9 @@ class OverviewGrid:
         # for the small imprecisions of re-projecting.
         g = shapes.BoxShapeFile(self._bbox.create_expanded(0.001, 0.001),
                                  filename, 'grid')
-        map(g.add_box, self._pages_bbox)
+        for box in self._pages_bbox:
+            g.add_box(box)
+
         return g