Structuring large Python GAE application questions.

[Jordan Howlett]

Hello. I am trying to think about the best way to structure a large python app engine project. We make use of a dev,staging, prod branch and in each one we have about 4 modules.

I want to organize it so the modules can have some shared code like certain utilities, models, and what not. But have it's own endpoints etc.

I want each module to have it's own git repo so that they can be git submodules inside the main git repo.

I thought something like:

gae-app/
├── modules
│   ├── api
│   │   ├── app.yaml
│   │   └── src
│   │       └── main.py
│   ├── mobile
│   │   ├── app.yaml
│   │   └── src
│   │       └── index.html
│   └── www
│       ├── app.yaml
│       └── src
│           ├── main.py
│           └── templates
├── cron.yaml
├── index.yaml
└── queue.yaml

However, I am not sure how this can be deployed as one app engine project with multiple modules? When I try to run something like that I get an error from appengine saying that the directory gae-app must have a file named app.yaml or app.yml.

Is there another way to do this? Any examples or suggestions?

[Alex Martelli]

I find the docs and examples at https://cloud.google.com/appengine/docs/python/modules/ quite useful.  It shows an app.yaml for the default module, and an xxx.yaml per module (which it names xxx just the same as the module name in its `module:` entry) -- it doesn't directly explain dispatch.yaml, but that's covered at https://cloud.google.com/appengine/docs/python/modules/routing if you need to change the default routing rules also explained in this latter webpage.

BTW, this seems to me to be a good Stack Overflow question -- by asking there you may get multiple good answer reflecting different opinions and experiences.  (I'm going to be changing our messaging to better explain what Qs should ideally go to Stack Overflow, vs these groups, vs Server Fault, but it will take me a while:-).

Alex

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