python: Add a newline after custom classes

In the generated bindings, custom classes are squashed against the following
class, which hurts readability.

diff --git a/python/generator.py b/python/generator.py
index 17eaf1a479a281f90084357dedd26f40da9f6469..21b413772bc1eac2eb725670f4affcfc073a89ee 100755 (executable)
--- a/python/generator.py
+++ b/python/generator.py
@@ -1337,6 +1337,7 @@ def buildWrappers():
                 classes.write ("    # %s methods from %s.py (hand coded)\n" % (classname,classname))
                 classes.write ("    #\n")
                 classes.writelines(extra.readlines())
+                classes.write("\n")
                 extra.close()
             except:
                 pass