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json package error on fresh install #363

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davewj100 opened this issue Feb 18, 2022 · 4 comments · Fixed by #364
Closed

json package error on fresh install #363

davewj100 opened this issue Feb 18, 2022 · 4 comments · Fixed by #364

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@davewj100
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Summary

Found this issue at runtime: ImportError: cannot import name 'json' from 'itsdangerous' on Ubuntu 20.04 LTS Server
... and found a workaround to fix it

Full Error Message

(lxdui) sa@hive:~/lxdui$ python3 run.py
Traceback (most recent call last):
  File "run.py", line 1, in <module>
    from app.cli.cli import lxdui
  File "/home/sa/lxdui/app/cli/cli.py", line 6, in <module>
    from app.api import core
  File "/home/sa/lxdui/app/api/core.py", line 3, in <module>
    from flask import Flask, redirect
  File "/home/sa/lxdui/lib/python3.8/site-packages/Flask-1.0.2-py3.8.egg/flask/__init__.py", line 21, in <module>
    from .app import Flask, Request, Response
  File "/home/sa/lxdui/lib/python3.8/site-packages/Flask-1.0.2-py3.8.egg/flask/app.py", line 25, in <module>
    from . import cli, json
  File "/home/sa/lxdui/lib/python3.8/site-packages/Flask-1.0.2-py3.8.egg/flask/json/__init__.py", line 21, in <module>
    from itsdangerous import json as _json
ImportError: cannot import name 'json' from 'itsdangerous' (/home/sa/lxdui/lib/python3.8/site-packages/itsdangerous-2.1.0-py3.8.egg/itsdangerous/__init__.py)

Workaround

Noticed this message on this page: itsdangerous Changelog
"Importing itsdangerous.json is deprecated. Import Python’s json module instead."

Modified: /home/sa/lxdui/lib/python3.8/site-packages/Flask-1.0.2-py3.8.egg/flask/json/init.py

# Use the same json implementation as itsdangerous on which we
# depend anyways.
# mod by DJ
# from itsdangerous import json as _json
import json as _json

It's a bit of a hack but it seems to work. Happens on fresh install with Ubuntu 20.04 LTS Server.

Dave
@bet4it bet4it mentioned this issue Mar 3, 2022
Merged
@OllieSteam
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OllieSteam commented Apr 6, 2022 •
edited

Yea got the same error,
ImportError: cannot import name 'json' from 'itsdangerous' (/usr/local/lib/python3.9/dist-packages/itsdangerous-2.1.2-py3.9.egg/itsdangerous/__init__.py)

Ubuntu Server 21.10 "Impish Indri" (64bits)

@emwadde
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emwadde commented Jun 5, 2022

I was able to fix it by manually installing itsdangerous==2.0.1 and Werkzeug==2.0.0
Try running the pip commands below
pip3 install itsdangerous==2.0.1
pip3 install Werkzeug==2.0.0

@ghost
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ghost commented Mar 9, 2023

Same issue ubuntu server 21.10

@emwadde
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emwadde commented Mar 10, 2023

Since this repo hasn't been updated recently and some dependencies has been updated with non-backwards compatible changes, I suggest to use the lxd-ui by Canonical
It appears to be the official UI for lxd.

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Update versions of libraries bet4it/lxdui
3 participants
@emwadde @davewj100 @OllieSteam