fix, 2

src/ntp_routes.py

@@ -8,6 +8,7 @@ import pandas as pd
 import psycopg
 import sqlalchemy
 import time
+import io
 
 from app import app
 from app import oidc
@@ -119,8 +120,6 @@ def ntpserver():
             dbh.close()
 
 
-def get_dataframe():
-
 @app.route('/plot.png')
 def plot_png():
     dbh = psycopg.connect()

src/requirements.txt

@@ -39,3 +39,5 @@ urllib3==2.3.0
 Werkzeug==3.1.3
 zipp==3.21.0
 pillow==11.1.0
+matplotlib==3.10.1
+