corrected most bugs !

debruijn/debruijn.py

     pass
 
 def main():
+    print(sys.argv[1])
     fichier = str(sys.argv[1])
-    k-size = int(sys.argv[2])
-    hash_table = build_kmer_dict(fichier, k-size)
+    k = int(sys.argv[2])
+    hash_table = build_kmer_dict(fichier, k)
     G = build_graph(hash_table)
     
     nb = 0