[python] ImportError: No Module Named bs4 (BeautifulSoup)

I'm working in Python and using Flask. When I run my main Python file on my computer, it works perfectly, but when I activate venv and run the Flask Python file in the terminal, it says that my main Python file has "No Module Named bs4." Any comments or advice is greatly appreciated.

The easiest is using easy_install.

easy_install bs4 

It will work if pip fails.

I did what @rayid-ali said, except I'm on a Windows 10 machine so I left out the sudo. That is, I did the following:

python3 -m pip install bs4

and it worked like a pycharm. Worked like a charm anyway.

Addendum to the original query: modules.py

help('modules')

$python modules.py

It lists that module bs4 already been installed.

_codecs_kr          blinker             json                six
_codecs_tw          brotli              kaitaistruct        smtpd
_collections        bs4                 keyword             smtplib
_collections_abc    builtins            ldap3               sndhdr
_compat_pickle      bz2                 lib2to3             socket

Proper solution is:

pip install --upgrade bs4

Should solve the problem.

Not only that, it will show same error for other modules as well. So you got to issue the pip command same way as above for those errored module(s).

pip3.7 install bs4

Try this. It works with python 3.7

A lot of tutorials/references were written for Python 2 and tell you to use pip install somename. If you're using Python 3 you want to change that to pip3 install somename.

I will advise you to uninstall the bs4 library by using this command:

pip uninstall bs4

and then install it using this command:

sudo apt-get install python3-bs4

I was facing the same problem in my Linux Ubuntu when I used the following command for installing bs4 library:

pip install bs4

If you use Pycharm, go to preferences - project interpreter - install bs4.

If you try to install BeautifulSoup, it will still show that no module named bs4.

Try reinstalling the module OR Try installing with beautiful soup with the below command

pip install --ignore-installed BeautifulSoup4

pip3 install BeautifulSoup4

Try this. It works for me. The reason is well explained here..

You might want to try install bs4 with

pip install --ignore-installed BeautifulSoup4

if the methods above didn't work for you.

For python2.x:

sudo pip install BeautifulSoup4

For python3:

sudo apt-get install python3-bs4

In case you are behind corporate proxy then try using following command

pip install --proxy=http://www-YOUR_PROXY_URL.com:PROXY_PORT BeautifulSoup4

pip install --user BeautifulSoup4

Just tagging onto Balthazar's answer. Running

pip install BeautifulSoup4

did not work for me. Instead use

pip install beautifulsoup4

If you are using Anaconda for package management, following should do:

conda install -c anaconda beautifulsoup4

I have been searching far and wide in the internet.

I'm using Python 3.6 and MacOS. I have uninstalled and installed with pip3 install bs4 but that didn't work. It seems like python is not able to detect or search the bs4 module.

This is what worked: python3 -m pip install bs4

The -m option allows you to add a module name.

https://docs.python.org/3/using/cmdline.html

Try this:

sudo python3 -m pip install bs4