TypeError: cannot pickle '_cffi_backend.FFI' object

[tokusumi]

TypeError: cannot pickle '_cffi_backend.FFI' object

[arrrrrmin]

Hello @tokusumi, yesterday I discovered this repo. Had the same problem. Also solved it by reinstalling the environment. Here are some requirements. (I'm moving my repo from Flask to fastAPI backend, just so you don't wonder ^^). I installed via pip3 install fastapi-cloudauth. I hope this helps you reproduce the error. Sadly I didnt freeze the requirements, so I can't tell you which versions I used.

flask #removed when reinstalling
jinja2 #removed when reinstalling
gunicorn #removed when reinstalling
boto3 #removed when reinstalling
pandas #removed when reinstalling

fastapi
uvicorn
python-jose
requests
dotenv #removed when reinstalling
fastapi-cloudauth

[tokusumi]

How did you install this? Please tell me reproducible way.

[tokusumi]

I cannot reproduced 😢 .
I tried the followings commands in the configurations:

• Python: v3.8.3
• pip: v18.1
• application file: copy the example in readme and paste it in app.py

Notice that you must set valid region and user pool id in environment variables in the last line.

$ python3 -m venv env
$ source env/bin/activate
$ python -m pip install -U flask jinja2 gunicorn boto3 pandas
$ python -m pip install -U fastapi uvicorn python-jose requests python-dotenv
$ python -m pip install -U fastapi-cloudauth
$ export REGION=us-east-1 && export USERPOOLID=us-east-1_xxxxxxxxx && uvicorn app:app
INFO:     Started server process [20051]
INFO:     Waiting for application startup.
INFO:     Application startup complete.
INFO:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)

[tokusumi]

Came across 👍 Thank you. I'll try to find a solution.

[jurasofish]

I got this too and "fixed" it by recreating my condo Env. It only occurred after I installed some new packages which I didn't end up needing (I forget which). Happens when one of the classes returns a copy of itself. I might get around to a pr

[tokusumi]

Hi, all!
I updated to resolve this problem in master branch and tested that in my reproducible environment. Could you check it with the latest master branch?

[arrrrrmin]

@tokusumi pip3 install git+https://github.com/tokusumi/fastapi-cloudauth.git does't throw the pickle error anymore. Thanks for resolving :)

[tokusumi]

Thank you for helping us.
To fix this error, v0.1.3 was released.