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core: unable to import Stack

See original GitHub issue

What is the problem?

I have a similar problem to issue #17950 with Python. When migrating to cdk 2.0.0/2.1.0

Tried with:

from aws_cdk import Stack

class MyStack(Stack):

Got ImportError: cannot import name 'Stack' from 'aws_cdk' (unknown location)

Also tried with:

import aws_cdk as core

class MyStack(core.Stack):

Got AttributeError: module 'aws_cdk' has no attribute 'Stack'

(using python 3.8.9, cdk 2.1.0)

Reproduction Steps

Add aws-cdk-lib==2.1.0 in requirements.txt

Try to import Stack from core

What did you expect to happen?

The import should work…

What actually happened?

2 different errors with 2 different ways to import the class.

CDK CLI Version

2.1.0

Framework Version

No response

Node.js Version

17.0.1

OS

macOs BigSur M1

Language

Python

Language Version

Python 3.8.9

Other information

No response

Issue Analytics

State:
Created 2 years ago
Comments:5 (2 by maintainers)

Top GitHub Comments

5reactions

rob-saffellcommented, Feb 1, 2022

I recreated this issue. It appears that the problem is that you are using aws-cdk.core (or a similar old version) and have not installed aws-cdk-lib. Removing aws-cdk.core with python3 -m pip uninstall aws-cdk.core And then installing the new major release with python -m pip install aws-cdk-lib should resolve your issue.

0reactions

github-actions[bot]commented, Dec 25, 2021

This issue has not received a response in a while. If you want to keep this issue open, please leave a comment below and auto-close will be canceled.

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