Changed energy file reader to output a DataFrame

mdevaluate/__init__.py

@@ -1,6 +1,8 @@
 import os
 from glob import glob
 
+import pandas as pd
+
 from . import atoms
 from . import coordinates
 from . import correlation
@@ -99,4 +101,4 @@ def open_energy(file):
     Args:
         file: Filename of the energy file
     """
-    return reader.energy_reader(file)
+    return pd.DataFrame(reader.energy_reader(file).data_dict)