generator: Fixed writing cached=None

Signed-off-by: Philipp Hahn <hahn@univention.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/generator.py b/generator.py
index 8160d69..1eabb30 100755
--- a/generator.py
+++ b/generator.py
@@ -1698,7 +1698,7 @@ def buildWrappers(module):
                             cached.append(line)
                         else:
                             classes.write(line)
-                if not shouldSkip(cached):
+                if cached is not None and not shouldSkip(cached):
                     classes.writelines(cached)
                 classes.write("\n")
                 extra.close()