Traceback (most recent call last): from bs4 import BeautifulSoup ModuleNotFoundError: No module named 'bs4'

1. pip로 패키지를 설치하려고 하니 pip 업그레이드하라는 경고가 나옴

You are using pip version 8.1.1, however version 10.0.1 is available.

You should consider upgrading via the 'pip install --upgrade pip' command.

1-1 pip install --upgrade pip 입력해서 업그레이드함

2. 에러 발생

pip로 다시 패키지 설치하려고 하니

Traceback (most recent call last):

  File "/usr/bin/pip", line 9, in <module>

    from pip import main

ImportError: cannot import name main

위와 같은 에러 발생

3. 해결법

1- Uninstall the pip update from python.
2- Uninstall pip package from your Ubuntu.
3- Check that pip binary is not longer in your system.

python -m pip uninstall pip
apt remove python-pip
whereis pip

4- Download and install pip. (credits for VanDragt.com)

wget https://bootstrap.pypa.io/get-pip.py -O /tmp/get-pip.py
sudo python3 /tmp/get-pip.py
pip install --user pipenv
pip3 install --user pipenv
echo "PATH=$HOME/.local/bin:$PATH" >> ~/.profile
source ~/.profile
whereis pip

출처 : stackoverflow