Update app.py

app.py

@@ -1,4 +1,5 @@
 import os
+import socket
 import gradio as gr
 import cadquery as cq
 from cadquery import exporters
@@ -8,7 +9,6 @@ from io import BytesIO
 import json
 import atexit
 import glob
-import os
 
 # Cleanup function to remove temporary files
 def cleanup_temp_files():
@@ -86,6 +86,14 @@ SOLVE
     except Exception as e:
         return f"Error: {str(e)}", None
 
+# Function to find a free port in a range
+def find_free_port(start_port, end_port):
+    for port in range(start_port, end_port + 1):
+        with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as sock:
+            if sock.connect_ex(('localhost', port)) != 0:  # Port is free
+                return port
+    raise OSError(f"No available ports in range {start_port}-{end_port}")
+
 # Gradio App
 def main():
     with gr.Blocks() as app:
@@ -134,10 +142,9 @@ def main():
 if __name__ == "__main__":
     app = main()
     try:
-        # Automatically find an available port in the range 7860-7870
+        # Dynamically find a free port in range 7860-7870
         port = find_free_port(7860, 7870)
         print(f"Launching on port: {port}")
         app.launch(server_port=port, debug=True)
     except Exception as e:
         print(f"Failed to launch: {str(e)}")
-