Upload widget

upload.ipynb

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     "data": {
      "application/vnd.jupyter.widget-view+json": {
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      "text/plain": [
       "HBox(children=(FileUpload(value=(), accept='.geojson', description='Upload', layout=Layout(margin='12px'), mul…"
      ]
     },
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   ],
   "source": [
    "import os\n",
    "import tempfile\n",
    "import ipywidgets as widgets\n",
    "\n",
    "uploader = widgets.FileUpload(\n",
    "    accept=\".geojson\", \n",
    "    multiple=True,  \n",
    "    description=\"Upload\",\n",
    "    layout=widgets.Layout(margin='12px'),\n",
    ")\n",
    "output = widgets.Output()\n",
    "\n",
    "upload_widget = widgets.HBox([uploader, output])\n",
    "\n",
    "def on_upload(change):\n",
    "    with output:\n",
    "        output.clear_output()\n",
    "        print(\"Uploading ...\")\n",
    "    temp_dir = tempfile.mkdtemp()\n",
    "    for value in uploader.value:\n",
    "        filename = value[\"name\"]\n",
    "        content = value[\"content\"]\n",
    "        file_path = os.path.join(temp_dir, filename)\n",
    "        with open(file_path, 'wb') as f:\n",
    "            f.write(content)\n",
    "    output.clear_output()\n",
    "\n",
    "uploader.observe(on_upload, names=\"value\")\n",
    "upload_widget"
   ]
  }
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