When installing packages using pip, therecommended approach is to usepython -m pip install instead ofpip install. Refer theInstalling Python Modules documentation.

Any command prefixed with! is treated as a shell command in Jupyter cells. Thus!pip install <module> is treated as a simple shell command that translates topip install <module>. However the recommendation is to usepython -m pip install <module>. To get this desired behavior one must use%pip install <module>

However when installing packages in Jupyter into a conda environment, use ofconda install is preferred overpip install. Hence its highly recommended that one use%conda install in jupyter notebooks when dealing with Conda enviornments.

See here for further detailshttps://jakevdp.github.io/blog/2017/12/05/installing-python-packages-from-jupyter/