Convert maximum extent to list before modification

Signed-off-by: Martin Raspaud <martin.raspaud@smhi.se>
pytroll · Jan 19, 2017 · 3ced9c5 · 3ced9c5
1 parent a4206e0
commit 3ced9c5
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/mpop/satin/helper_functions.py b/mpop/satin/helper_functions.py
@@ -87,6 +87,7 @@ def area_def_names_to_extent(area_def_names, proj4_str,
         if not maximum_extent:
             return None
 
+    maximum_extent = list(maximum_extent)
     maximum_extent[0] -= 10000
     maximum_extent[1] -= 10000
     maximum_extent[2] += 10000