AWS CDK python 客户端在使用 cdk deploy 时出错

Question

我的堆栈：

• 蟒蛇 3.6
• Node.js 11.3.0
• jsii-0.20.11（通过npm安装aws cdk时自动安装）

我只是尝试了cdk init然后做了pip install -e 。

之后，我做了cdk deploy ，它给了我以下错误：

Traceback (most recent call last):
  File "app.py", line 3, in <module>
    from aws_cdk import core
  File "C:\Users\sgoud12\myfolder\myprojects\myapp\cdk\.env\lib\site-packages\aws_cdk\core\__init__.py", line 1967, in <module>
    class DependableTrait(metaclass=jsii.JSIIAbstractClass, jsii_type="@aws-cdk/core.DependableTrait"):
TypeError: __new__() got an unexpected keyword argument 'jsii_type'
Subprocess exited with error 1

(.env) C:\Users\sgoud12\myfolder\myprojects\myapp\cdk>
(.env) C:\Users\sgoud12\myfolder\myprojects\myapp\cdk>fs.js:122
    throw err;
    ^

Error: EOF: end of file, read
    at Object.readSync (fs.js:517:3)
    at SyncStdio.readLine (C:\Users\sgoud12\myfolder\myprojects\myapp\cdk\.env\lib\site-packages\jsii\_embedded\jsii\jsii-runtime.js:13350:25)
    at InputOutput.read (C:\Users\sgoud12\myfolder\myprojects\myapp\cdk\.env\lib\site-packages\jsii\_embedded\jsii\jsii-runtime.js:13300:34)
    at KernelHost.run (C:\Users\sgoud12\myfolder\myprojects\myapp\cdk\.env\lib\site-packages\jsii\_embedded\jsii\jsii-runtime.js:7231:32)
    at Immediate.setImmediate (C:\Users\sgoud12\myfolder\myprojects\myapp\cdk\.env\lib\site-packages\jsii\_embedded\jsii\jsii-runtime.js:7239:37)
    at processImmediate (timers.js:632:19)

Answer 1

它通常意味着某种版本missmarch：npm 中的aws-cdk 和python 中的aws-cdk。 鉴于这是一个非常古老的问题，我认为更新所有软件包甚至重新安装环境应该会有所帮助。

官方 aws-cdk 错误跟踪器中提到了类似的问题：

https://github.com/aws/aws-cdk/issues/3349

https://github.com/aws/aws-cdk/issues/3293

Answer 2

我同意，这令人沮丧并且很难找到解决方法。 使用来自@Trilliput 的链接

我的步骤：

1. 卸载pip
2. 更新自制软件
3. 删除 aws cli
4. 重新安装 aws cli
5. 卸载 aws cdk
6. 重新安装 aws cdk

命令：

sudo pip uninstall pip
brew update
sudo rm /usr/local/bin/aws
sudo rm /usr/local/bin/aws_completer
sudo rm -rf /usr/local/aws-cli
curl "https://awscli.amazonaws.com/AWSCLIV2.pkg" -o "AWSCLIV2.pkg"
sudo installer -pkg AWSCLIV2.pkg -target /
pip3 uninstall aws-cdk.cdk
pip3 install aws-cdk.cdk --use-feature=2020-resolver

这并没有像我希望的那样工作，所以我使用了下面的所有这些命令。 我叫它焦土重装：

sudo pip uninstall pip
brew update
sudo rm /usr/local/bin/aws
sudo rm /usr/local/bin/aws_completer
sudo rm -rf /usr/local/aws-cli
brew uninstall node
brew uninstall pyenv

# CLOSE your terminal window and open a NEW terminal window.  
# when you run [which python] you should get /usr/bin/python
# run these commands to remove node and npm

https://gist.github.com/TonyMtz/d75101d9bdf764c890ef

curl "https://awscli.amazonaws.com/AWSCLIV2.pkg" -o "AWSCLIV2.pkg"
sudo installer -pkg AWSCLIV2.pkg -target /

curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
python get-pip.py
python3 get-pip.py

brew install python3

# old CDK
pip3 uninstall aws-cdk.cdk

#new CDK
pip3 uninstall aws-cdk.core

# NEW CDK
pip3 install aws-cdk.core

#pip3 install aws-cdk.core --use-feature=2020-resolver

# reinstall aws cdk
npm install -g aws-cdk
npm install -g npm@7.0.13
sudo npm install -g npm@7.0.13
npm install -g aws-cdk
sudo npm install -g aws-cdk
sudo -i
sudo npm install -g aws-cdk
cdk --version

Answer 3

将 python 版本从 3.6 提升到 3.7.5 对我来说就像一个魅力