Update app.py

app.py

@@ -42,7 +42,7 @@ language = lang_map[lang][0]
 
 # Libraries
 lib_str = st.text_input("Library?", placeholder="Package A, Package B, ... , Package N", help="if any libraries are needed. Seperate with a comma.")
-libraries = [lib.strip() for lib in lib_str.split(",")] if lib_str else None
+libraries = [lib.strip() for lib in lib_str.split(",")] if lib_str else []
 
 # Memory Profile
 memory_profile = st.checkbox("Memory Profile?", help="Enable memory profiling for the code execution.")