minor .gitignore update
diff --git a/.gitignore b/.gitignore
index 01c70b7..1670194 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,6 +4,7 @@
 cmake_install.cmake
 .DS_Store
 /example/example.so
+/example/example.cpython*.so
 /example/example.pyd
 /example/example*.dll
 *.sln