Update app.py

app.py

@@ -111,7 +111,7 @@ def main():
     with st.sidebar:
         openai_key = st.text_input("Paste your OpenAI API key (sk-...)")
         if openai_key:
-            os.environ["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"] = openai_key
+            os.environ["OPENAI_API_KEY"] = openai_key
 
         st.subheader("Your documents")
         docs = st.file_uploader(