Fixed tokenizer conversion

On my cloud GPU tokenizer loads fine, so catch doesn't trigger
and except block isn't executed. So we need to save it in try-block
as well

train.ipynb

@@ -161,7 +161,9 @@
     "if not Path('tokenizer.json').exists():    \n",
     "    try:\n",
     "        tokenizer = AutoTokenizer.from_pretrained(\"openlm-research/open_llama_3b\")\n",
-    "    except:\n",
+    "        tokenizer.save_pretrained(\".\")\n",
+    "    except Exception as e:\n",
+    "        print(e)\n",
     "        os.environ[\"PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION\"]=\"python\"    \n",
     "        tokenizer = AutoTokenizer.from_pretrained(\"openlm-research/open_llama_3b\")\n",
     "        tokenizer.save_pretrained(\".\")\n",