diff --git a/Requirements.md b/Requirements.md
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@@ -1,3 +1,4 @@
+* Python > 2.6 : http://www.python.org
 * IRPF90 : http://irpf90.ups-tlse.fr
 * EZFIO : http://github.com/scemama/EZFIO
 * Intel Fortran compiler (with MKL library)