No module named 'ffi' when calling doccano init

[tareefroustom]

Hi guys, I'm getting this error when calling doccano init, the installation itself is okay with no dependencies errors raised

(base) C:\Users\troustom>doccano init
Traceback (most recent call last):
File "c:\users\troustom\anaconda3\lib\runpy.py", line 194, in _run_module_as_main
return _run_code(code, main_globals, None,
File "c:\users\troustom\anaconda3\lib\runpy.py", line 87, in run_code
exec(code, run_globals)
File "C:\Users\troustom\Anaconda3\Scripts\doccano.exe_main.py", line 4, in
File "c:\users\troustom\anaconda3\lib\site-packages\backend\cli.py", line 7, in
import gunicorn.app.base
File "c:\users\troustom\anaconda3\lib\site-packages\gunicorn\app\base.py", line 11, in
from gunicorn import util
File "c:\users\troustom\anaconda3\lib\site-packages\gunicorn\util.py", line 8, in
import fcntl
File "c:\users\troustom\anaconda3\lib\site-packages\fcntl.py", line 3, in
import ffilib
File "c:\users\troustom\anaconda3\lib\site-packages\ffilib.py", line 2, in
import ffi
ModuleNotFoundError: No module named 'ffi'

python 3.8.5 on windows

[github-actions]

Would you write your environment? Thank you!

[Hironsan]

I could not reproduce this problem in the following environment:

• pip installation v1.3.1
• macOS Mojave 10.14.1
• Python 3.8.5

[tareefroustom]

I could not reproduce this problem in the following environment:

• pip installation v1.3.1
• macOS Mojave 10.14.1
• Python 3.8.5

thanks for your reply mate, no clue, I've looked around for this ffi package but I couldn't find it, apparently it was updated to cffi with no guide on how to migrate, I will keep looking for a solution and keep this thread updated

I am stuck as well with fcntl and ffi issue. ffi is being imported by fcntl.
Doccano version - 1.4.0
MS Windows
Python 3.8.4
installed using pip

I followed the steps present in https://developers.arcgis.com/python/guide/labeling-text-using-doccano/ and ran doccano using method 1. The latest version is working fine with dockers. Method 2 can be used for running in the local system.