!pip install fastai


i’m getting started to jupyter lab and i loaded the code of the first chapter of the fast.ai book.

i tried to run the first code and it failed and this message showed up:


Now i’m trying to use !pip command to install the package <<fastai.vision.all>> but i fail and this message shows up when i try to run <<!pip install fastai.all>>:

AttributeError: module ‘pexpect’ has no attribute ‘TIMEOUT’

What should i do?