Errors trying to switch to new version of Python in Visual Studio Code

Question

I am using visual studio code to run a program in python. I wrote my program in python 3.7 and everything was fine. I tried to install jupyterlab but it needed a new version. So I switched to Python 3.11 (3.11.0 64-bit to be more precise).

When I run my code in the newer Python version it says:

bs4.FeatureNotFound: Couldn't find a tree builder with the features you requested: lxml. Do you need to install a parser library?

For line: soup = BeautifulSoup(page,features="lxml")

According to a 2018 topic here, where the user has the same problem, the most upvoted and accepted answer suggests to do two things. To add "html5lib" and pip install html5lib. I do the hypothesis that I need to do the same about lxml.

That's why I run pip install lxml. Now it returns:

error: subprocess-exited-with-error

  × Running setup.py install for lxml did not run successfully.       
  │ exit code: 1
  ╰─> [96 lines of output]
      Building lxml version 4.9.1.
      Building without Cython.
      Building against pre-built libxml2 andl libxslt libraries       
      running install

And a screenshot. And at the end again:

      *********************************************************************************
      Could not find function xmlCheckVersion in library libxml2. Is libxml2 installed?
      *********************************************************************************
      [end of output]

  note: This error originates from a subprocess, and is likely not a problem with pip.
error: legacy-install-failure

× Encountered error while trying to install package.
╰─> lxml

note: This is an issue with the package mentioned above, not pip.
hint: See above for output from the failure.

And a screenshot. In this Stackoverflow question they suggest to go back a version which sounds like a bad idea. And I do not know if the libraries I want to install will be available there. (In addition, there is no accepted answer and some answers even say to reinstall the entire OS?!)

Then I checked this question and I tried to install pip install C:\Users\@@@@@\Downloads\lxml-4.9.1-cp311-cp311-win_amd64.whl. While everything is there as I downloaded them (screenshot of the folder), it returns an error:

ERROR: Could not install packages due to an OSError: [Errno 2] No such file or directory: 'C:\\Users\\@@@@@\\Downloads\\lxml-4.9.1-cp311-cp311-win_amd64.whl'

Information that may be needed:

Windows 10
Visual Studio Code Version 1.74.0
Chosen Interpreter 3.11.0 https://prnt.sc/5N4w8srPSZ25

beautiful-soup-4.readthedocs.io/en/latest/#installing-a-parser — It_is_Chris
– It_is_Chris, Commented Dec 13, 2022 at 16:00
@It_is_Chris I have read the documentation. I have installed both the beautifulsoup4 and html5lib. The "Problems after installation" sections does not include my errors. Neither does "Troubleshooting" section. — Skapis9999
– Skapis9999, Commented Dec 13, 2022 at 16:26

MingJie-MSFT · Accepted Answer · 2022-12-14 01:48:34Z

0

Could not find function xmlCheckVersion in library libxml2. Is libxml2 installed?

You can install lxml for your python 3.11 from https://www.lfd.uci.edu/~gohlke/pythonlibs/#lxml. And I suggest lxml‑4.9.0‑cp311‑cp311‑win_amd64.whl.

After you downloading it, you can use following command to install it:

pip install C:\path\to\downloaded\file\lxml‑4.9.0‑cp311‑cp311‑win_amd64.whl

answered Dec 14, 2022 at 1:48

MingJie-MSFT

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