diff --git a/bindings/python/ns3modulescan-modular.py b/bindings/python/ns3modulescan-modular.py
index e3a904918..e8b67df26 100644
--- a/bindings/python/ns3modulescan-modular.py
+++ b/bindings/python/ns3modulescan-modular.py
@@ -273,12 +273,12 @@ def ns3_module_scan(top_builddir, module_name, headers_map, output_file_name, cf
     module_parser.parse_finalize()
 
     output_file.close()
-    os.chmod(output_file_name, 0400)
+    os.chmod(output_file_name, 0o400)
 
 
 if __name__ == '__main__':
     if len(sys.argv) != 6:
-        print "ns3modulescan-modular.py top_builddir module_path module_headers output_file_name cflags"
+        print("ns3modulescan-modular.py top_builddir module_path module_headers output_file_name cflags")
         sys.exit(1)
     ns3_module_scan(sys.argv[1], sys.argv[2], eval(sys.argv[3]), sys.argv[4], sys.argv[5])
     sys.exit(0)
diff --git a/bindings/python/wscript b/bindings/python/wscript
index 7f6d707c4..39b782c55 100644
--- a/bindings/python/wscript
+++ b/bindings/python/wscript
@@ -377,7 +377,7 @@ class apiscan_task(Task.Task):
             up = m.update
             up(self.__class__.__name__.encode())
             up(self.curdirnode.abspath().encode())
-            up(self.target)
+            up(self.target.encode())
             self.uid_ = m.digest()
             return self.uid_