Traceback (most recent call last):


 "./coursera-dl", line 4, in <module>

from coursera import coursera_dl


 "/shared/projects/my-coursera/coursera/coursera/coursera_dl.py", line 57, in <module>

import bs4
ImportError: No module named bs4

Traceback (most recent call last):


 "<stdin>", line 1, in <module>


 "<path_to_virtualenv>/lib/python3.7/site-packages/spektral/__init__.py", line 5, in <module>

from . import layers


 "<path_to_virtualenv>/lib/python3.7/site-packages/spektral/layers/__init__.py", line 4, in <module>

from .convolutional import *


 "<path_to_virtualenv>/lib/python3.7/site-packages/spektral/layers/convolutional.py", line 5, in <module>

from keras.backend import tf
ImportError: cannot import name 'tf' from 'keras.backend' (<path_to_virtualenv>/lib/python3.7/site-packages/keras/backend/__init__.py)
