add requiretment

app.py

@@ -10,7 +10,7 @@ def greet(name):
     output_string = result.stdout
     error_string = result.stderr
     
-    output_string, error_string= run_command("pip install optogpt")
+    output_string, error_string= run_command("pwd")
     return "Hello " + output_string + error_string  + "!"
 
 demo = gr.Interface(fn=greet, inputs="text", outputs="text")