diff --git a/.gitignore b/.gitignore
index 65f1759340e7d1a7024369ece998198eef27aa62..77ad58bab48c5d8cf49e25237ad2346ad9f1ad22 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,3 @@
-# Twitter data :
-data/
 # MOOD git clone :
 mood-tetis-tweets-collect/
 # ipynb execution
diff --git a/data/.gitignore b/data/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..363cd2b6bf038ad6cddbb63ad7cfb74d685c0fb1
--- /dev/null
+++ b/data/.gitignore
@@ -0,0 +1,3 @@
+# version empty dir
+*
+!.gitignore
diff --git a/requirements.txt b/requirements.txt
index 6faeb2044210cec833fae22688e920887a9375de..b6d798f48c7552390908c8648fcad2fabe92b309 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1 +1,4 @@
 pandas==1.2.3
+matplotlib==3.0.2
+ipympl==0.6.3
+wordcloud==1.8.0