LISTSERV 16.5 - XROOTD-DEV Archives

@simonmichal You're running into the equivalent of this https://floatingoctothorpe.uk/2016/python3-centos-and-pip.html because of CentOS packaging issues. You can see this with a minimal example of just trying to create a Python virtual environment, seeing it fail, and then running python3 -Im ensurepip --upgrade --default-pip directly

$ docker pull cern/cc7-base:latest
$ docker run -it --rm cern/cc7-base:latest /bin/bash
[root@5bd3a2fc06ee /]# yum install --nogpg -y git python3-pip which
[root@5bd3a2fc06ee /]# python3 -m pip install --upgrade pip
[root@5bd3a2fc06ee /]# python3 -m pip install --upgrade setuptools
[root@5bd3a2fc06ee /]# python3 -m pip list
Package    Version
---------- -------
pip        21.3.1
setuptools 59.6.0
[root@5bd3a2fc06ee /]# python3 -m venv venv
Error: Command '['/venv/bin/python3', '-Im', 'ensurepip', '--upgrade', '--default-pip']' returned non-zero exit status 1.
[root@5bd3a2fc06ee /]# python3 -Im ensurepip --upgrade --default-pip
Traceback (most recent call last):
  File "/usr/lib64/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/usr/lib64/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/usr/lib64/python3.6/ensurepip/__main__.py", line 5, in <module>
    sys.exit(ensurepip._main())
  File "/usr/lib64/python3.6/ensurepip/__init__.py", line 232, in _main
    default_pip=args.default_pip,
  File "/usr/lib64/python3.6/ensurepip/__init__.py", line 129, in _bootstrap
    shutil.copy(whl, tmpdir)
  File "/usr/lib64/python3.6/shutil.py", line 245, in copy
    copyfile(src, dst, follow_symlinks=follow_symlinks)
  File "/usr/lib64/python3.6/shutil.py", line 120, in copyfile
    with open(src, 'rb') as fsrc:
FileNotFoundError: [Errno 2] No such file or directory: '/usr/lib64/python3.6/ensurepip/_bundled/setuptools-40.6.2-py2.py3-none-any.whl'

$ docker pull cern/cc7-base:latest
$ docker run -it --rm cern/cc7-base:latest /bin/bash
yum install --nogpg -y git python3-pip which
python3 -m pip install --upgrade pip setuptools wheel
git clone https://github.com/xrootd/xrootd
cd xrootd/
git fetch origin pull/1585/head:pr1585
git checkout pr1585
cp packaging/wheel/* .
./publish.sh

You can also remove the python3 -m pip install --upgrade commands and it will work fine:

$ docker pull cern/cc7-base:latest
$ docker run -it --rm cern/cc7-base:latest /bin/bash
yum install --nogpg -y git python3-pip which
git clone https://github.com/xrootd/xrootd
cd xrootd/
git fetch origin pull/1585/head:pr1585
git checkout pr1585
cp packaging/wheel/* .
./publish.sh

Aside: Why are you using cern/cc7-base:latest when it isn't used anywhere for testing in the repo?

$ git grep "cc7-base"
.github/workflows/build.yml:    container: gitlab-registry.cern.ch/linuxsupport/cc7-base:latest
.github/workflows/build.yml:    container: gitlab-registry.cern.ch/linuxsupport/cc7-base:latest
.github/workflows/build.yml:    container: gitlab-registry.cern.ch/linuxsupport/cc7-base:latest
.github/workflows/build.yml:    container: gitlab-registry.cern.ch/linuxsupport/cc7-base:latest
.github/workflows/build.yml:    container: gitlab-registry.cern.ch/linuxsupport/cc7-base:latest
.gitlab-ci.yml:  image: gitlab-registry.cern.ch/linuxsupport/cc7-base
.gitlab-ci.yml:  image: gitlab-registry.cern.ch/linuxsupport/cc7-base
.gitlab-ci.yml:  image: gitlab-registry.cern.ch/linuxsupport/cc7-base
.gitlab-ci.yml:  image: gitlab-registry.cern.ch/linuxsupport/cc7-base
.gitlab-ci.yml:  image: gitlab-registry.cern.ch/linuxsupport/cc7-base
.gitlab-ci.yml:  image: gitlab-registry.cern.ch/linuxsupport/cc7-base
.gitlab-ci.yml:  image: gitlab-registry.cern.ch/linuxsupport/cc7-base
.gitlab-ci.yml:  image: gitlab-registry.cern.ch/linuxsupport/cc7-base
.gitlab-ci.yml:  image: gitlab-registry.cern.ch/linuxsupport/cc7-base
.gitlab-ci.yml:  image: gitlab-registry.cern.ch/linuxsupport/cc7-base

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