Update app.py

app.py

@@ -299,7 +299,7 @@ def txt2chunks(text):
     return text_splitter.split_text(text)
 
 def vector_store(text_chunks):
-    key = os.getenv('OPENAI_API_KEY')
+    key = os.getenv('OPENAI_KEY')
     embeddings = OpenAIEmbeddings(openai_api_key=key)
     return FAISS.from_texts(texts=text_chunks, embedding=embeddings)
 
@@ -361,7 +361,7 @@ def get_zip_download_link(zip_file):
 
     
 def main():
-    openai.api_key = os.getenv('OPENAI_API_KEY')
+    openai.api_key = os.getenv('OPENAI_KEY')
 
     # File type for output, model choice
     menu = ["txt", "htm", "xlsx", "csv", "md", "py"]