Reuse current datetime

wsgi.py

@@ -50,6 +50,8 @@ def plot(
     total_target: int = 1500,
     alpha: float | None = None,
 ) -> str:
+    curr_datetime = datetime.datetime.now()
+
     data_dict = {}
 
     ## Important: If multiple results are stored for the same date
@@ -72,21 +74,19 @@ def plot(
 
     df = series.to_frame("Digitale Befragung")
     df = df.reindex(
-        pd.date_range(
-            start="2023-08-15", end=datetime.datetime.now().strftime("%Y-%m-%d")
-        )
+        pd.date_range(start="2023-08-15", end=curr_datetime)
         + pd.DateOffset(hours=10)
     )
 
     if current_df is not None:
         current_df = current_df.astype({"Digitale Befragung": "Int32"})
         sum_val = current_df[["Digitale Befragung"]].sum().iloc[0]
-        df.loc[datetime.datetime.now()] = sum_val
+        df.loc[curr_datetime] = sum_val
 
     fig = plt.figure(dpi=300)
 
     # fill weekends
-    max_date = datetime.datetime.now() + datetime.timedelta(days=1)
+    max_date = curr_datetime + datetime.timedelta(days=1)
     days = pd.date_range(start="2023-08-14", end=max_date)
     for idx, day in enumerate(days[:-1]):
         if day.weekday() >= 5: