diff --git a/data/__init__.py b/data/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/cities.py b/data/cities.py
similarity index 100%
rename from cities.py
rename to data/cities.py
diff --git a/countries.py b/data/countries.py
similarity index 100%
rename from countries.py
rename to data/countries.py
diff --git a/departments.py b/data/departments.py
similarity index 100%
rename from departments.py
rename to data/departments.py
diff --git a/import/__init__.py b/import/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/convert_cities.py b/import/convert_cities.py
similarity index 94%
rename from convert_cities.py
rename to import/convert_cities.py
index e3fe0c0..c9ec2a9 100644
--- a/convert_cities.py
+++ b/import/convert_cities.py
@@ -24,6 +24,6 @@ with open("correspondance-code-insee-code-postal.json", "r") as f:
             failed.append(base_item)
     import pprint
 
-    with open("cities.py", "w") as writef:
+    with open("../data/cities.py", "w") as writef:
         writef.write(pprint.pformat(mapping, indent=4, compact=True))
         writef.flush()
diff --git a/main.py b/main.py
index 4745ba8..ffcb433 100644
--- a/main.py
+++ b/main.py
@@ -2,9 +2,9 @@ import calendar
 import datetime
 import pprint
 
-from departments import DEPARTMENTS
-from cities import CITIES
-from countries import COUNTRIES, CONTINENTS
+from data.departments import DEPARTMENTS
+from data.cities import CITIES
+from data.countries import COUNTRIES, CONTINENTS
 
 
 class InseeData: