X-Git-Url: https://git.ralfj.de/zonemaker.git/blobdiff_plain/bacbf61b6595b9b8f733ea26be95b1ce45cdfb45..e755148dea6ccfd48ee64670bd2f59f311dde159:/zonemaker/zone.py?ds=sidebyside

diff --git a/zonemaker/zone.py b/zonemaker/zone.py
index 094c0f8..add2bde 100644
--- a/zonemaker/zone.py
+++ b/zonemaker/zone.py
@@ -258,7 +258,7 @@ class Zone:
         try:
             with open(self._serialfile) as f:
                 cur_serial = int(f.read())
-        except FileNotFoundError:
+        except (OSError, IOError): # FileNotFoundError has been added in Python 3.3
             pass
         # increment serial
         cur_serial += 1