TypeError: in interactiveshell.py, InteractiveShell class, line 331

[manish-abio]

Errror:

"/home/ec2-user/anaconda3/envs/JupyterSystemEnv/lib/python3.10/site-packages/IPython/core/interactiveshell.py", line 331, in InteractiveShell
ast_transformers: List[ast.NodeTransformer] = List(
TypeError: 'type' object is not subscriptable

Solution:

Line 331 should be changed to:
ast_transformers: List = List(

[DrManishSharma]

Added a pull request #14359

[krassowski]

@manish-abio @DrManishSharma this issue looks like a duplicate of #14352 which was fixed in #14353 and released in 8.22.1; you are most likely either running 8.22.0 rather than patched 8.22.1, or have incompatible version of traitlets installed.

[RobChad]

I'm running a freshly installed 8.22.2 with this issue
downgrading to 8.22.1, I still have this issue
8.21.0 works

I'm on python 3.10.13