debian/changelog

+python-mapnik (1:0.0~20180130-804a7947d-1) unstable; urgency=medium
+
+  * New upstream git snapshot.
+  * Rebuild with Mapnik 3.0.19.
+
+ -- Bas Couwenberg <sebastic@debian.org>  Sat, 10 Mar 2018 09:56:59 +0100
+
 python-mapnik (1:0.0~20170621-0cd7493f2-3) unstable; urgency=medium
 
   * Update copyright-format URL to use HTTPS.

debian/control

@@ -6,7 +6,7 @@ Priority: optional
 Build-Depends: debhelper (>= 9),
                dh-python,
                libboost-python-dev,
-               libmapnik-dev (>= 3.0.18),
+               libmapnik-dev (>= 3.0.19),
                python-all-dev,
                python-setuptools,
                python-cairo,

mapnik/printing/__init__.py

@@ -1249,7 +1249,7 @@ class PDFPrinter(object):
             file_writer = PdfFileWriter()
 
             # preserve OCProperties at document root if we have one
-            if file_reader.trailer['/Root'].has_key(NameObject('/OCProperties')):
+            if NameObject('/OCProperties') in file_reader.trailer['/Root']:
                 file_writer._root_object[NameObject('/OCProperties')] = file_reader.trailer[
                     '/Root'].getObject()[NameObject('/OCProperties')]