Can't install xmlsec using PIP command

Question

pip install xmlsec commands throws the below error.

ERROR: Command errored out with exit status 1:
   command: /home/xxx/PycharmProjects/saml_impl/saml_impl/venv/bin/python /home/sathia/PycharmProjects/saml_impl/saml_impl/venv/lib/python3.8/site-packages/pip/_vendor/pep517/_in_process.py build_wheel /tmp/tmpu_b5m5vz
       cwd: /tmp/pip-install-gblz98sr/xmlsec
  Complete output (14 lines):
  running bdist_wheel
  running build
  running build_py
  package init file 'src/xmlsec/__init__.py' not found (or not a regular file)
  creating build
  creating build/lib.linux-x86_64-3.8
  creating build/lib.linux-x86_64-3.8/xmlsec
  copying src/xmlsec/py.typed -> build/lib.linux-x86_64-3.8/xmlsec
  copying src/xmlsec/template.pyi -> build/lib.linux-x86_64-3.8/xmlsec
  copying src/xmlsec/constants.pyi -> build/lib.linux-x86_64-3.8/xmlsec
  copying src/xmlsec/__init__.pyi -> build/lib.linux-x86_64-3.8/xmlsec
  copying src/xmlsec/tree.pyi -> build/lib.linux-x86_64-3.8/xmlsec
  running build_ext
  error: Unable to invoke pkg-config.
  ----------------------------------------
  ERROR: Failed building wheel for xmlsec
Failed to build xmlsec
ERROR: Could not build wheels for xmlsec which use PEP 517 and cannot be installed directly'

I don't know how to resolve this issue. I tried to install other xmlsec package too, nothing worked.

Nim

Answer 1

Xmlsec listed here https://pypi.org/project/xmlsec/. The below command should install for download required native libraries.

sudo apt-get install pkg-config libxml2-dev libxmlsec1-dev libxmlsec1-openssl

Nim

For python 3.7 I also had to add this: apt-get install libpython3.7-dev response found here – Stu

Similar for Python 3.8: apt-get install libpython3.8-dev – Hypnoanalysis

Answer 2

Fast forward to 2023 and the issue happened w/me on macOS. It seems like we are Unable to (pip install xmlsec) since brew version 4.0.13. A variation of dpritchett's workaround plus johnnymetz's comment saved me, which consists on:

manually reverting to a copy of the last known good pre-1.3.0 xmlsec1 version (1.2.37) Formula:

1. brew edit libxmlsec1; an editor opens up, full of the contents of the latest downloaded xmlsec formula
2. paste in the contents of the last pre-1.3.0 brew formula and save it (vim: wq!)*
3. brew unlink libxmlsec1
4. Install that local formula: brew install /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core/Formula/libxmlsec1.rb
5. pip install xmlsec

* On my setup steps 1 & 2 were not necessary; I pasted here a variation of their answer on the same link

Penis

Same issue for me on Homebrew 4.1.20, and i couldn't get the guides from the others to work, until i found your comment which saved me!.. i was missing to run brew unlink libxmlsec1 after updating the formula. And as you said, you combined both dpritchett and johnnymetz suggestions, which I should just have done.. But thanks, now I can continue! – Statistician

From the 'answer on the same link', this comment one-liner solved it for me github.com/xmlsec/python-xmlsec/issues/… – Resourceful

Answer 3

I had a similar issue with installing xmlsec. What did it for me was reinstalling the required native libraries listed here: https://pypi.org/project/xmlsec/

It was as simple as installing: brew install libxml2 libxmlsec1 pkg-config

Herman

Answer 4

sudo apt-get install libxmlsec1-dev pkg-config

this will work on ubuntu / wsl ubuntu

Horatio

Answer 5

This indicates that the wheels you are trying to install aren't supported by PEP 517. Try upgrading the following packages then trying to install again

pip install --upgrade pip setuptools wheel

Missive

Try downgrading pip to 18.1 using pip install pip==18.1 and installing the libpython dev for your python version. – Missive

solved, I have posted the solution. thanks for your help – Nim

Answer 6

i had similar issue but instead of "pkg-config" error, i had error with "xmlsec1" so i used the command

sudo apt-get install libxmlsec1-dev pkg-config

as per Could not find xmlsec1 config. Are libxmlsec1-dev and pkg-config installed?

Norford

Answer 7

yum install libxml2-devel xmlsec1-devel xmlsec1-openssl-devel libtool-ltdl-devel

Paugh

Answer 8

Solution for my MacBook Air (M2, 2022) running macOS Monterey

xcode-select --install
brew upgrade
brew install libxml2 libxmlsec1
pip install xmlsec

!REBOOT!
Create virtual env with python 3.10 (probably 3.8/3.9 works too but didn't test)

python3.10 -m venv .venv
source .venv/bin/activate
pip install xmlsec

Nellynelms

Answer 9

Use these commands if you are getting this error in mac this will work for sure.

xcode-select --install

brew upgrade

brew install libxml2 libxmlsec1

pip install xmlsec

Godman

Answer 10

I was getting below error while installation of sentry

ERROR: Could not build wheels for xmlsec which use PEP 517 and cannot be installed directly

It's resolved by @sathiamoorthy above answer.

sudo apt-get install pkg-config libxml2-dev libxmlsec1-dev libxmlsec1-openssl

Angloindian