Update app.py

app.py

@@ -1,39 +1,47 @@
-# run_jupyterlab.py
-import subprocess
-import sys
 import os
+import subprocess
+import time
+import gradio as gr
+
+def launch_jupyter():
+    # Install nodejs and localtunnel at runtime
+    os.system("apt-get update && apt-get install -y nodejs npm")
+    os.system("npm install -g localtunnel")
+
+    # Set secure token (change this to anything you like)
+    token = "letmein123"
+
+    # Launch JupyterLab with token authentication
+    subprocess.Popen([
+        "jupyter", "lab",
+        "--ip=127.0.0.1",
+        "--port=6600",
+        "--no-browser",
+        f"--NotebookApp.token={token}",
+        "--NotebookApp.allow_origin='*'",
+        "--NotebookApp.allow_remote_access=True"
+    ])
+
+    time.sleep(5)  # Let Jupyter start
+
+    # Launch localtunnel and get the public URL
+    proc = subprocess.Popen(
+        ["lt", "--port", "6600", "--subdomain", "zyxciss-jlab"],
+        stdout=subprocess.PIPE,
+        stderr=subprocess.STDOUT,
+        text=True
+    )
+
+    for line in proc.stdout:
+        if "your url is:" in line:
+            url = line.strip().split("your url is:")[1].strip()
+            return f"""
+                <h3>✅ JupyterLab Running</h3>
+                <p>Public URL: <a href="{url}?token={token}" target="_blank">{url}?token={token}</a></p>
+                <iframe src="{url}?token={token}" width="100%" height="600px" style="border: none;"></iframe>
+            """
+
+    return "<p>❌ Failed to retrieve LocalTunnel URL</p>"
 
-def launch_jupyterlab():
-    """Launches JupyterLab programmatically on port 7860."""
-    print("Attempting to launch JupyterLab on port 7860...")
-
-    command = [
-        sys.executable,
-        "-m",
-        "jupyterlab",
-        "--no-browser", # Remove this line if you want it to open automatically in your browser
-        "--port",
-        "7860" # Changed the port to 7860 as requested
-    ]
-
-    # Optional: Uncomment and modify if you want to specify a working directory
-    # command.extend(["--notebook-dir", "/path/to/your/notebooks"])
-
-    try:
-        print(f"Executing command: {' '.join(command)}")
-        process = subprocess.Popen(command)
-        
-        print("\nJupyterLab launched! Check your terminal for the URL.")
-        print("You should see a URL like 'http://localhost:7860/lab?token=...'")
-        print("Copy and paste this URL into your web browser to access JupyterLab.")
-        print("Keep this terminal window open while you are using JupyterLab.")
-
-    except FileNotFoundError:
-        print("Error: 'jupyterlab' command not found.")
-        print("Please ensure JupyterLab is installed. You can install it with:")
-        print("pip install jupyterlab")
-    except Exception as e:
-        print(f"An error occurred while launching JupyterLab: {e}")
-
-if __name__ == "__main__":
-    launch_jupyterlab()
+demo = gr.Interface(fn=launch_jupyter, inputs=[], outputs=gr.HTML())
+demo.launch()