pip msgpack error while installing requirements

Question

I used pip install -r requirements.txt, and got this error:

AttributeError: module 'msgpack' has no attribute 'dumps'

Full log: https://pastebin.com/aTTwyrML

requirements.txt: https://github.com/poljar/weechat-matrix/blob/master/requirements.txt

This also seems to break other uses of pip install.

I can't find any pip issues or solutions to this anywhere.

EDIT: msgpack is being inmported from: '/usr/lib/python3.8/site-packages/msgpack/__init__.py'

Other packages that cause the error:

pytconf

Do you have a file or folder called `msgpack` anywhere in your project? — FlyingTeller, Apr 15 '20 at 12:23
@FlyingTeller No, I think it's just normal msgpack (local and system) — R Harrington, Apr 15 '20 at 12:30
Can you open a python interpreter and do `import msgpack` followed by `msgpack.__file__` to check where it is being imported from? — FlyingTeller, Apr 15 '20 at 12:38
Seems like this issue is fixed: https://github.com/msgpack/msgpack-python/issues/424 — R Harrington, May 16 '20 at 16:35

score 2 · Answer 1 · answered Apr 18 '20 at 10:44

You're running python version 3.8 and msgpack only supports up to 3.7. This might be causing a problem installing msgpack via pip or there's some breaking implementation in 3.8 that's not in 3.7 and under. I know I've run into some trouble with sharing projects between teams that are using 3.8 and teams that are using earlier verions.

msgpack on pypi.

pip msgpack error while installing requirements

1 Answers1