# Steps 1-4 are always in db.py (setup file). # Step 5 is in models.py (one file per group of related tables, or one file for all). # Steps 6-7 are in main.py (app entry point). # STEP 1: DB URL -- ...
You spent three hours debugging a broken ETL script, your data is sitting in five different places in five different formats, and the stakeholder meeting is tomorrow morning. If you've ever stared at ...
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