Update app.py

app.py

@@ -35,7 +35,14 @@ from langchain.chains import ConversationalRetrievalChain
 from templates import css, bot_template, user_template
 from io import BytesIO
 from contextlib import redirect_stdout
-
+# code import tests
+import seaborn
+import plotly
+import vega_datasets
+import bokeh
+import holoviews
+import plotnine
+import graphviz
 
 # set page config once
 st.set_page_config(page_title="Python AI Pair Programmer", layout="wide")