Remove non-portuguese domains

preprocess_data.ipynb

@@ -221,7 +221,7 @@
         "\n",
         "!apt update -y\n",
         "!apt install -y enchant libenchant-dev  hunspell-pt-br\n",
-        "!pip install pyenchant datasets"
+        "!pip install pyenchant datasets pycountry"
       ]
     },
     {
@@ -612,6 +612,40 @@
         ")"
       ]
     },
+    {
+      "cell_type": "code",
+      "execution_count": null,
+      "metadata": {},
+      "outputs": [],
+      "source": [
+        "import pycountry\n",
+        "\n",
+        "PT_COUNTRIES =  [\n",
+        "    'brazil',\n",
+        "    'portugal',\n",
+        "    'angola',\n",
+        "    'cabo verde',\n",
+        "    'guinea-bissau',\n",
+        "    'mozambique',\n",
+        "    'timor-leste'\n",
+        "]\n",
+        "\n",
+        "def is_portuguese(domain):\n",
+        "    end = domain.split('.')[-1]\n",
+        "\n",
+        "    if len(end) != 2:\n",
+        "        return True\n",
+        "\n",
+        "    language = pycountry.countries.get(alpha_2=end)\n",
+        "\n",
+        "    if not language:\n",
+        "        return True\n",
+        "\n",
+        "    return language.name.lower() in PT_COUNTRIES\n",
+        "\n",
+        "prepro_data = prepro_data.filter(lambda examples: is_portuguese(examples['domain'])) "
+      ]
+    },
     {
       "cell_type": "code",
       "execution_count": null,