makefile: delete mjo/__pycache__ with "make clean".

diff --git a/makefile b/makefile
index 858d0673cca758611b73b50f6025a05b3d2ccf16..ec7406f3187786b07346fbc73ac24c47a7f9ae8f 100644 (file)
--- a/makefile
+++ b/makefile
@@ -4,3 +4,4 @@ check:
        PYTHONPATH="." $(SAGE) -t mjo/
 clean:
        find ./ -type f -name '*.pyc' -delete
+       find ./ -type d -name '__pycache__' -delete