Error upgrading from 2.2.8. to 2.3

Administrators
1

I got an error executing the “pip install -U indico” comand in our Debian 9 test environment.

Collecting alembic==1.4.2
  Using cached alembic-1.4.2.tar.gz (1.1 MB)
  Installing build dependencies ... done
  Getting requirements to build wheel ... error
  ERROR: Command errored out with exit status 1:
   command: /opt/indico/.venv/bin/python2 /opt/indico/.venv/local/lib/python2.7/site-packages/pip/_vendor/pep517/_in_process.py get_requires_for_build_wheel /tmp/tmp7swB0y
       cwd: /tmp/pip-install-b40tjn/alembic
  Complete output (10 lines):
  Traceback (most recent call last):
    File "/opt/indico/.venv/local/lib/python2.7/site-packages/pip/_vendor/pep517/_in_process.py", line 280, in <module>
      main()
    File "/opt/indico/.venv/local/lib/python2.7/site-packages/pip/_vendor/pep517/_in_process.py", line 263, in main
      json_out['return_val'] = hook(**hook_input['kwargs'])
    File "/opt/indico/.venv/local/lib/python2.7/site-packages/pip/_vendor/pep517/_in_process.py", line 108, in get_requires_for_build_wheel
      backend = _build_backend()
    File "/opt/indico/.venv/local/lib/python2.7/site-packages/pip/_vendor/pep517/_in_process.py", line 99, in _build_backend
      obj = getattr(obj, path_part)
  AttributeError: 'module' object has no attribute '__legacy__'
  ----------------------------------------
ERROR: Command errored out with exit status 1: /opt/indico/.venv/bin/python2 /opt/indico/.venv/local/lib/python2.7/site-packages/pip/_vendor/pep517/_in_process.py get_requires_for_build_wheel /tmp/tmp7swB0y Check the logs for full command output.

Indico 2.2.8
Debian 9
pip 20.2.3
Python 2.7.13

Can you help me please?
Regards,
Alberto Nardella

2

I’ve never seen this error before. Try upgrading pip and setuptools first, even though your versions aren’t that old… pip install -U pip setuptools

3

It worked. Thank you

4

Hello Indico Team,
i have an issue when i try to update indico(2.2.8->latest) or the plugins.
i follow this procedure Upgrade — Indico 3.2.8 documentation.
so,when i execute this command:

pip install -U indico

or

pip install -U indico-plugins

i have this error message

ERROR: Command errored out with exit status 1:
command: /opt/indico/.venv/bin/python /opt/indico/.venv/lib/python2.7/site-packages/pip/_vendor/pep517/_in_process.py get_requires_for_build_wheel /tmp/tmprhRxYj
cwd: /tmp/pip-install-NpUTrt/alembic
Complete output (4 lines):
Traceback (most recent call last):
File “/opt/indico/.venv/lib/python2.7/site-packages/pip/_vendor/pep517/_in_process.py”, line 15, in
from glob import glob
ImportError: No module named glob
\ ----------------------------------------
ERROR: Command errored out with exit status 1: /opt/indico/.venv/bin/python /opt/indico/.venv/lib/python2.7/site-packages/pip/_vendor/pep517/_in_process.py get_requires_for_build_wheel /tmp/tmprhRxYj Check the logs for full command output.

i tried

pip install -U pip setuptools

Requirement already up-to-date: pip in ./.venv/lib/python2.7/site-packages (20.3.4)
Requirement already up-to-date: setuptools in ./.venv/lib/python2.7/site-packages (44.1.1)

but error again

Indico 2.2.8
CentOS 7
pip 20.3.4
Python 2.7

Can you help me please?
Thank’s in advance
Adriano

5

This looks like something is seriously wrong with your Python environment…

One option to (likely) fix this would be deleting the virtualenv, recreating it and installing the indico and indico-plugins (if needed) packages again. Config and data will remain of course since you are just reinstalling the Python environment/packages.

6

sorry for the answer delay.
thank you for the suggestion, i go to test it.
i would share with you my experience.

thank’s a lot,
Adriano