Update app.py

app.py

@@ -5,7 +5,7 @@ from langchain_huggingface import HuggingFaceEndpoint
 from langchain_core.prompts import PromptTemplate
 from langchain_core.output_parsers import StrOutputParser
 from transformers import pipeline  # for Sentiment Analysis
-from config import NASA_API_KEY  # Import the NASA API key from the configuration file
+NASA_API_KEY = os.getenv("NASA_API_KEY")
 
 model_id = "mistralai/Mistral-7B-Instruct-v0.3"