Update app.py

app.py

@@ -13,14 +13,16 @@ def plot_graph(file):
     plt.ylabel('Y-axis')
     plt.grid(True)
     # Save the plot to a file
-    plt.savefig('plot.png')
-    return 'plot.png'
+    plot_filename = 'plot.png'
+    plt.savefig(plot_filename)
+    plt.close()
+    return plot_filename
 
 # Define the Gradio interface
 interface = gr.Interface(
     fn=plot_graph,
     inputs=gr.File(label="Upload CSV File"),
-    outputs=gr.Image(type="file", label="Generated Graph"),
+    outputs=gr.Image(type="filepath", label="Generated Graph"),
     title="Tabular Data Plotter"
 )