I have created a Python app and built it with pyinstaller and codesigned everything. Now I want to Sandbox test it. In my appstore connect account i have created a subscriptions id. I read that if I am logged out from the AppStore and have codesigned my .app file with a Developer Certificate i should be able to run the app on my local mac and when i click on the "Buy" button it should connect to my app store connect setup. I have implemented StoreKit in my app and use a storekit_bridge to combine the .swift code with my python app.
However when i run the app. I get this: "25-07-24 21:01:12,557 - FEC - WARNING - StoreKit: fetchProducts returned empty result 2025-07-24 21:01:12,557 - FEC - INFO - StoreKit fetch_products returned: {"products": []} 2025-07-24 21:01:12,557 - FEC - ERROR - StoreKit: Failed to parse product info: No products returned from JSON"
And no login screen appears where I should be able to enter my Sandbox email adress and password.
Anyone here who has experience with a Python app combined with In App Purchases? Hope someone can help me out with this.