all colab changes

colab/demo.ipynb

@@ -61,6 +61,25 @@
     "    * Feel free to create an issue on our [GitHub repo](https://github.com/nerfstudio-project/nerfstudio).\n"
    ]
   },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# Sequence of installations required for notebook to run with Python 3.10\n",
+    "!pip install colab-xterm\n",
+    "%reload_ext colabxterm\n",
+    "!apt-get update -y\n",
+    "!apt-get install python3.10 python3.10-distutils\n",
+    "!update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.10\n",
+    "!update-alternatives --config python3\n",
+    "!apt-get install python3-pip\n",
+    "!python3 -m pip install --upgrade pip --user\n",
+    "!sudo apt remove python3-blinker\n",
+    "!pip install --force-reinstall \"numpy<2.0.0\""
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": null,
@@ -253,13 +272,11 @@
     "# @title # Render Video { vertical-output: true }\n",
     "# @markdown <h3>Export the camera path from within the viewer, then run this cell.</h3>\n",
     "# @markdown <h5>The rendered video should be at renders/output.mp4!</h5>\n",
-    "\n",
+    "from IPython.core.display import HTML, display\n",
     "\n",
     "base_dir = \"/content/outputs/unnamed/nerfacto/\"\n",
     "training_run_dir = base_dir + os.listdir(base_dir)[0]\n",
     "\n",
-    "from IPython.core.display import HTML, display\n",
-    "\n",
     "display(HTML(\"<h3>Upload the camera path JSON.</h3>\"))\n",
     "%cd $training_run_dir\n",
     "uploaded = files.upload()\n",