diff --git a/IT/python/index.md b/IT/python/index.md
index 049cf1c..b12c90f 100644
--- a/IT/python/index.md
+++ b/IT/python/index.md
@@ -12,3 +12,6 @@ https://github.com/gto76/python-cheatsheet/blob/master/README.md
 ## tips
 - pprint permet  d afficher vos structure de données
 - la fonction dir() permet de lister les attribut d un 
+## unitest
+### lancer une suite de tests 
+```python -m unittest tests.suite```
\ No newline at end of file