Traceback (most recent call last):


 "av/container/output.pyx", line 22, in av.container.output.close_output


 "av/container/core.pyx", line 267, in av.container.core.Container.err_check


 "av/error.pyx", line 328, in av.error.err_check


 "av/container/pyio.pyx", line 39, in av.container.pyio.pyio_write_gil
TypeError: 'NoneType' object is not callable

Traceback (most recent call last):


 "/home/user/Projects/subfolder/my_project/test1.py", line 42, in <module>

pred_ci = pred_res.conf_int(alpha=0.01)


 "/home/user/Programs/anaconda3/envs/vision/lib/python3.7/site-packages/statsmodels/tsa/statespace/mlemodel.py", line 3707, in conf_int

names = (['lower %s' % name for name in ynames] +


 "/home/user/Programs/anaconda3/envs/vision/lib/python3.7/site-packages/statsmodels/tsa/statespace/mlemodel.py", line 3707, in <listcomp>

names = (['lower %s' % name for name in ynames] +
TypeError: not all arguments converted during string formatting
