Update app.py

app.py

@@ -24,7 +24,7 @@ QA_CHAIN_PROMPT = PromptTemplate(input_variables = ["context", "question"], temp
 
 def invoke(openai_api_key, youtube_url, prompt):
     openai.api_key = openai_api_key
-    if (os.path.isdir("docs/chroma/")):
+    if (os.path.isdir("docs/chroma/") == False):
         youtube_dir = "docs/youtube/"
         loader = GenericLoader(YoutubeAudioLoader([youtube_url], youtube_dir), OpenAIWhisperParser())
         docs = loader.load()