Problem loading psycopg2 with glibc 2.26

The importing fails. I think the following shell session contains all necessary details (glibc 2.26 was recently released, updating to this version triggers the problem):

$ uname -a
Linux ran 4.12.4-1-ARCH #1 SMP PREEMPT Fri Jul 28 18:54:18 UTC 2017 x86_64 GNU/Linux

$ pacman -Qi glibc | grep Version
Version         : 2.26-1

$ python --version
Python 3.6.2

$ python -m venv venv
$ . venv/bin/activate

(venv) $ pip install psycopg2
Collecting psycopg2
  Downloading psycopg2-2.7.3-cp36-cp36m-manylinux1_x86_64.whl (2.7MB)
    100% |████████████████████████████████| 2.7MB 378kB/s 
Installing collected packages: psycopg2
Successfully installed psycopg2-2.7.3

(venv) $ python
Python 3.6.2 (default, Jul 20 2017, 03:52:27) 
[GCC 7.1.1 20170630] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import psycopg2
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "venv/lib/python3.6/site-packages/psycopg2/__init__.py", line 50, in <module>
    from psycopg2._psycopg import (                     # noqa
ImportError: venv/lib/python3.6/site-packages/psycopg2/.libs/libresolv-2-c4c53def.5.so: symbol __res_maybe_init, version GLIBC_PRIVATE not defined in file libc.so.6 with link time reference

Perhaps I should report this to the manylinux repository; if so please let me know.

In case it wasn't clear, installing from sdist works:

(venv) $ pip uninstall psycopg2
  Successfully uninstalled psycopg2-2.7.3

(venv) $ pip install --no-binary :all: psycopg2
Collecting psycopg2
  Downloading psycopg2-2.7.3.tar.gz (425kB)
    100% |████████████████████████████████| 430kB 601kB/s 
Installing collected packages: psycopg2
  Running setup.py install for psycopg2 ... done

(venv) $ python
Python 3.4.6 (default, Aug 24 2017, 12:52:24) 
[GCC 7.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import psycopg2
>>>

Sorry, I know it sounds silly but... "have you tried restarting it"?

I've seen old reports of this bug, e.g. https://lists.debian.org/debian-glibc/2005/08/msg00363.html that seem suggesting a runtime problem.

If not, yes please, report it to manylinux, because it seems suggesting an ABI change which is exactly what the guys tried to avoid.

I restarted the computer but it didn't help.

For now I added

--no-binary psycopg2

to the top of my requirements.txt to prevent pip from using the wheel. In fact, I prefer to use the system shared libraries over the bundled ones anyway, so I'll keep it regardless of the issue.

Thanks!

Bump version number to try fixing libc 2.26 libresolv problem

Patch auditwheel to avoid including libresolv

Try building psycopg2 without issue #2

@bluetech

Hello @bluetech

Could you please test if the wheel package at http://initd.org/psycopg/upload/psycopg2-2.7.3.1.dev0/ works ok? If so I'll push a patch to auditwheel. Thank you very much.

pip install http://initd.org/psycopg/upload/psycopg2-2.7.3.1.dev0/psycopg2-2.7.3.1.dev0-cp36-cp36m-manylinux1_x86_64.whl should do.

Yes, it fixes the problem. Specifically, the import works and the test suite of my project passes.

Thank you very much for testing! I will release an updated wheel package.

upgraded psycopg2

[FIX] requirements: update psycopg2 version

Had the same issue and that dev from git hub worked!! Although, it only seemed to be a problem with running from a virtual environment. My image for docker ran fine. Go figure.

[FIX] make odoo 8.0 installable in ubuntu 18.04\n\nby upgrading psyco…

[FIX] requirements: update psycopg2 version

upgrade psycopg2 to work with glibc 2.28 (psycopg/psycopg2-wheels#2)

Bumped psycopg2 version in Pipfile to fix glibc problem.

Upgrade psycopg2 for psycopg/psycopg2-wheels#2

@JoelAtDeluxe

Had this issue and following @JoelAtDeluxe pip install psycopg2 --upgrade threw the error

    Error: b'You need to install postgresql-server-dev-X.Y for building a server-side extension or libpq-dev for building a client-side application.\n'

I followed
https://stackoverflow.com/questions/28253681/you-need-to-install-postgresql-server-dev-x-y-for-building-a-server-side-extensi

sudo apt-get install postgresql
sudo apt-get install python-psycopg2
sudo apt-get install libpq-dev

Then running pip install psycopg2 --upgrade succeeds.

Update psycopg2 to fix issue with the docker image

Fix psycopg2 and libc interaction

Don't use binary psycopg2 because of psycopg/psycopg2-wheels#2

Fix Python libc segfault tied to psycopg2 installation

Fix Python libc segfault tied to psycopg2 installation (#567)

updated psycopg2 lib due to a bug with a certain version of glibc

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Problem loading psycopg2 with glibc 2.26 #2

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bluetech commented on Aug 24, 2017

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bluetech commented on Aug 24, 2017

dvarrazzo commented on Aug 25, 2017

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elliotvilhelm commented on May 10, 2019

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