diff --git a/mapytex/calculus/API/tokens/number.py b/mapytex/calculus/API/tokens/number.py
index 5299c16..36c8d98 100644
--- a/mapytex/calculus/API/tokens/number.py
+++ b/mapytex/calculus/API/tokens/number.py
@@ -11,10 +11,9 @@ Tokens representing interger and decimal
 
 """
 from decimal import Decimal as _Decimal
-from random import random, randint
 from .token import Token
 from ...core.arithmetic import gcd
-from ...core.random import filter_random
+from ...core.random.bltin_gene import filter_random
 from ...core.MO import MO, MOnumber
 from ...core.MO.fraction import MOFraction
 
diff --git a/mapytex/calculus/API/tokens/token.py b/mapytex/calculus/API/tokens/token.py
index b89f037..dff9d0d 100644
--- a/mapytex/calculus/API/tokens/token.py
+++ b/mapytex/calculus/API/tokens/token.py
@@ -165,9 +165,6 @@ class Token(object):
         """
         return self._operate(other, "/")
 
-
-
-
 # -----------------------------
 # Reglages pour 'vim'
 # vim:set autoindent expandtab tabstop=4 shiftwidth=4:
diff --git a/mapytex/calculus/core/random/__init__.py b/mapytex/calculus/core/random/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/mapytex/calculus/core/random.py b/mapytex/calculus/core/random/bltin_gene.py
similarity index 100%
rename from mapytex/calculus/core/random.py
rename to mapytex/calculus/core/random/bltin_gene.py