Update app.py

app.py

@@ -212,7 +212,7 @@ def split_text_into_chunks(text):
     return text_splitter.split_text(text)
 
 def create_vector_store_from_text_chunks(text_chunks):
-    key = os.getenv('OPENAI_KEY')
+    key = os.getenv('OPENAI_API_KEY')
     embeddings = OpenAIEmbeddings(openai_api_key=key)
     return FAISS.from_texts(texts=text_chunks, embedding=embeddings)
 
@@ -238,7 +238,7 @@ def process_user_input(user_question):
     
 def main():
     # Sidebar and global
-    openai.api_key = os.getenv('OPENAI_KEY')
+    openai.api_key = os.getenv('OPENAI_API_KEY')
     st.set_page_config(page_title="GPT Streamlit Document Reasoner",layout="wide")
     menu = ["htm", "txt", "xlsx", "csv", "md", "py"]  #619
     choice = st.sidebar.selectbox("Output File Type:", menu)