Update app.py

app.py

@@ -1,19 +1,19 @@
 import streamlit as st 
 import pandas as pd 
 import numpy as np 
-from datetime import datetime timedelta 
+from datetime import datetime, timedelta 
 from io import StringIO
 
 st.title( Cumulative Trend ) 
 
-uploaded file = st. file_ uploader("Choose a CSV file including 'date' column.") 
+uploaded file = st.file_uploader("Choose a CSV file including 'date' column.") 
                                    
 if uploaded_file is not None: 
 
-    df = pd.read CSV (uploaded_file, sep= usecols=[ date "]) 
-    df = df.dropna (axis=0)
+    df = pd.read CSV (uploaded_file, sep=',' usecols=["date"]) 
+    df = df.dropna(axis=0)
 
-    date_list 류 pd.to datetime (df.squeeze()) .dt.date.tolist() 
+    date_list = pd.to_datetime(df.squeeze()).dt.date.tolist() 
     date_list.sort()
 
     start_date = date_list[0]