Just like it was done for Java I made a python cdk project template

I needed to decouple the existing pytest class to create a specific test template for CDK Python projects

Testing against local projects

Testing this solution is a little different as it is necessary import the projen python dependency

$ cd /path/to/local/projen
$ yarn build # <-- build the solution
$ yarn package:python # <-- create the projen python package
$ yarn link

Now, to create new projects:

$ mkdir /my/new/project
$ cd /my/new/project
$ npm init -y # <-- needed to yarn lynk
$ yarn link projen
$ alias pj="node_modules/projen/bin/projen"
$ pj new awscdk-app-py
$ source .env/bin/activate
$ pip install /path/to/local/projen/dist/python/projen-0.0.0-py3-none-any.whl # <-- point to your local projen code
$ pj new awscdk-app-py # <-- run again to resolve the projen dependency

Now you can make some changes on your .projenrc.py file and run python .projenrc.py

closes #1577

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