diff --git a/pymath/__init__.py b/pymath/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/arithmetic.py b/pymath/arithmetic.py
similarity index 100%
rename from arithmetic.py
rename to pymath/arithmetic.py
diff --git a/expression.py b/pymath/expression.py
similarity index 99%
rename from expression.py
rename to pymath/expression.py
index e3ba90e..fb2809f 100644
--- a/expression.py
+++ b/pymath/expression.py
@@ -5,7 +5,6 @@ from generic import Stack, flatten_list, expand_list
 from fraction import Fraction
 from renders import txt_render, post2in_fix, tex_render
 from formal import FormalExp
-from formal import FormalExp
 
 class Expression(object):
     """A calculus expression. Today it can andle only expression with numbers later it will be able to manipulate unknown"""
diff --git a/fraction.py b/pymath/fraction.py
similarity index 99%
rename from fraction.py
rename to pymath/fraction.py
index 9d0f28c..728e4f4 100644
--- a/fraction.py
+++ b/pymath/fraction.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python
 # encoding: utf-8
 
-from arithmetic import gcd
+from .arithmetic import gcd
 
 class Fraction(object):
     """Fractions!"""
diff --git a/generic.py b/pymath/generic.py
similarity index 100%
rename from generic.py
rename to pymath/generic.py
diff --git a/random_expression.py b/pymath/random_expression.py
similarity index 100%
rename from random_expression.py
rename to pymath/random_expression.py
diff --git a/render.py b/pymath/render.py
similarity index 100%
rename from render.py
rename to pymath/render.py
diff --git a/setup.py b/setup.py
new file mode 100644
index 0000000..e4fca94
--- /dev/null
+++ b/setup.py
@@ -0,0 +1,11 @@
+#!/usr/bin/env python
+
+from distutils.core import setup
+
+setup(name='pyMath',
+      version='0.1dev',
+      description='Computing like a student',
+      author='Benjamin Bertrand',
+      author_email='lafrite@poneyworld.net',
+      packages=['pymath'],
+     )