Make sure to generate error file in docs

Author: Wu Jianxiao

docs/source/tutorial/3-troubleshooting.ipynb

@@ -152,9 +152,19 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "%%bash\n",
+    "from pydra.tasks.testing import Divide\n",
+    "from pydra.utils.general import default_run_cache_root\n",
+    "import subprocess\n",
     "\n",
-    "pydracli crash _error.pklz --rerun --debugger pdb"
+    "if __name__ == \"__main__\":\n",
+    "    divide = Divide(x=15, y=0)\n",
+    "    try:\n",
+    "        divide(cache_root=default_run_cache_root)\n",
+    "    except Exception:\n",
+    "        pass\n",
+    "\n",
+    "    errorfile = default_run_cache_root / divide._checksum / \"_error.pklz\"\n",
+    "    subprocess.run([\"pydracli\", \"crash\", str(errorfile)])"
    ]
   },
   {