python 3 compatible integer division + deprecated .as_matrix()

Author: verena-neufeld

tools/pyhande/pyhande/lazy.py

@@ -136,8 +136,8 @@ def lazy_hybrid(calc, md, start=0, end=None, batch_size=1):
     #list = calc_tr['Proj. Energy'].as_matrix()
     #n_data = len(list)
 
-    list_org = calc_tr['Proj. Energy'].as_matrix()
-    n_data = len(list_org) / batch_size
+    list_org = calc_tr['Proj. Energy'].values
+    n_data = len(list_org) // batch_size
     list = [0]*n_data
     for i in range(n_data):
         list[i] = numpy.mean(list_org[i*batch_size:(i+1)*batch_size])