stored pandas dataframe into hdf5-file

trial_json.py

@@ -11,6 +11,7 @@ testfile for operating with json-files
 import json
 import numpy as np
 import pandas as pd
+import h5py as h5
 
 #%% define functions
 def findkeys(node, kv):
@@ -107,3 +108,14 @@ for p in range(0,len(data_pumps)):
         dataset.index = ["eta_pumpe","eta_motor","eta_ges"]
         count +=1
         print(p,m,eta_ges)
+        
+        
+#%% store dataframe in hdf5-file
+filename = "example_kpi.h5"
+with pd.HDFStore(filename, "a") as hdf:
+    try:
+        #grp = hdf.create_group("Berechnung")
+        #grp.create_dataset("Efficiency", data = dataset)
+        dataset.to_hdf(hdf,"Berechnung")
+    except ValueError:
+        print("Gruppe existiert bereits.")
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