AttributeError: module 'jedi' has no attribute 'Script'

[wookayin]

The following error occurs, autocompletion not working:

[ncm2_jedi@yarp] AttributeError: module 'jedi' has no attribute 'Script'

vimrc:

Plug 'roxma/nvim-yarp'
Plug 'ncm2/ncm2'
Plug 'ncm2/ncm2-jedi'
Plug 'ncm2/ncm2-bufword'
autocmd BufEnter * call ncm2#enable_for_buffer()

messages:

[ncm2_jedi@yarp] Traceback (most recent call last):
[ncm2_jedi@yarp]   File "/home/XXXX/.vim/plugged/nvim-yarp/pythonx/yarp.py", line 30, in on_notification
[ncm2_jedi@yarp]     getattr(module_obj, method)(*args)
[ncm2_jedi@yarp]   File "/home/XXXX/.vim/plugged/ncm2/pythonx/ncm2.py", line 206, in on_complete
[ncm2_jedi@yarp]     on_complete_impl(context, *args)
[ncm2_jedi@yarp]   File "/home/XXXX/.vim/plugged/ncm2-jedi/pythonx/ncm2_jedi.py", line 40, in on_complete
[ncm2_jedi@yarp]     script = jedi.Script(src, lnum, len(typed), path)
[ncm2_jedi@yarp] AttributeError: module 'jedi' has no attribute 'Script'

A solution that worked:

Reinstall jedi in the host python3 (g:python3_host_prog) via pip, and the error is gone. Not sure why module jedi had pointed to a wrong (maybe old) version previously.

Unfortunately it is documented nowhere and error handling seems not robust. For example, we may detect jedi is well installed and import-able using the host python3 interpreter, and warn users if not.

Any other thoughts how we can improve this, as many users might experience this error?

[cbcoutinho]

I got the same error, and solved it by installing jedi into the python3 virtualenv I set up for neovim.

[gkapfham]

Hello @wookayin and @cbcoutinho, I wanted to write and let you know that I recently ran into this issue. I am currently running NVIM v0.3.2-dev on Ubuntu 16.04 and found that I also had to upgrade my installed version of jedi. After I did that, I found that ncm2 and ncm2-jedi worked correctly. Perhaps it would be a good idea if there was some documentation to indicate which version of jedi was supported?

[sriramkswamy]

I got the same error but upgrading jedi didn't work. Can you let me know which version of jedi worked for you? I'm on NVIM v0.3.1

[vzxxbacq]

Install jedi in the host python3 (in a conda env) solved my problem (nvim 0.3.1), thanks.

[IliaOzhmegov]

Hey guys, I've just had the similar problem but it my case it was like this
[ncm2_jedi@yarp] AttributeError: 'Script' object has no attribute 'complete.

and reinstalling via pip3 install -I jedi helped.