+ "outputs": [
+ {
+ "ename": "",
+ "evalue": "",
+ "output_type": "error",
+ "traceback": [
+ "\u001b[1;31mRunning cells with '/bin/python3' requires the ipykernel package.\n",
+ "\u001b[1;31mRun the following command to install 'ipykernel' into the Python environment. \n",
+ "\u001b[1;31mCommand: '/bin/python3 -m pip install ipykernel -U --user --force-reinstall'"
+ ]
+ }
+ ],
+ "source": [
+ "closed_dates = pd.to_datetime(df['closedAt'], format='ISO8601')\n",
+ "dfp['year'] = closed_dates.dt.year\n",
+ "\n",
+ "dfp.drop(columns=['closedAt','milestone', 'url'], inplace=True)\n",
+ "print(dfp)"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "metadata": {},
+ "outputs": [
+ {
+ "ename": "",
+ "evalue": "",
+ "output_type": "error",
+ "traceback": [
+ "\u001b[1;31mRunning cells with '/bin/python3' requires the ipykernel package.\n",
+ "\u001b[1;31mRun the following command to install 'ipykernel' into the Python environment. \n",
+ "\u001b[1;31mCommand: '/bin/python3 -m pip install ipykernel -U --user --force-reinstall'"
+ ]
+ }
+ ],