Update app.py

app.py

@@ -2,16 +2,27 @@ import gradio as gr
 import io
 import sys
 
+class PersistentRunner:
+    def __init__(self):
+        self.globals = {}
+
+    def run(self, code):
+        old_stdout = sys.stdout
+        sys.stdout = buffer = io.StringIO()
+
+        try:
+            exec(code, self.globals)
+        except Exception as e:
+            print(f"Error: {e}")
+        finally:
+            sys.stdout = old_stdout
+
+        return buffer.getvalue()
+
+runner = PersistentRunner()
+
 def run(code):
-    old_stdout = sys.stdout
-    sys.stdout = buffer = io.StringIO()
-    try:
-        exec(code, {})
-    except Exception as e:
-        print(f"Error: {e}")
-    finally:
-        sys.stdout = old_stdout
-    return buffer.getvalue()
+    return runner.run(code)
 
 demo = gr.Interface(fn=run, inputs="text", outputs="text")
 demo.launch()