feat: remove dotenv, and env

app.py

@@ -14,11 +14,8 @@ from phase.Teacher_view import classmanage,studentlist,contentmanage
 from phase.Student_view.games import profitpuzzle
 from utils import db
 import os
-from dotenv import load_dotenv
 
 
-load_dotenv()
-
 
 # --- SESSION STATE INITIALIZATION ---
 for key, default in [("user", None), ("current_page", "Welcome"),

phase/Student_view/chatbot.py

@@ -2,16 +2,11 @@ import streamlit as st
 import datetime
 import os
 from openai import OpenAI
-from dotenv import load_dotenv
 
-# Load environment variables from .env file if present
-load_dotenv()
-
-# Ensure OPENAI_API_KEY is set
+# Read from Space Secrets (Settings → Variables & secrets)
 api_key = os.getenv("OPENAI_API_KEY")
 if not api_key:
-    st.error("⚠️ Please set the OPENAI_API_KEY environment variable or .env file before running the app.")
-
+    st.error("⚠️ OPENAI_API_KEY is not set. In your Space, add a Secret named OPENAI_API_KEY.")
 client = OpenAI(api_key=api_key)
 
 # --- Helper to add message ---

requirements.txt

@@ -23,7 +23,6 @@ pydantic>=2.7.4,<3.0
 pydantic-core>=2.18.4,<3.0
 
 # ---- Utilities ----
-python-dotenv==1.0.1
 tenacity>=8.2.3
 requests>=2.32.0
 markdownify>=0.12.1