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SQLAlchemy 2.0 migration triage checklist

Sort SQLAlchemy 2.0 migration work into safe codemod, manual review, and staged refactor buckets.

Start here

The safe first move

Start with direct syntax cleanup, report execution-boundary changes, and leave broad Query-to-select rewrites for a deliberate stage.

Stop before automation when: Application-specific transaction rules. Result-shape changes from ORM query rewrites.

Target shape

codemod: Query.get, select([..]), simple string paths
manual review: engine.execute, from_self, multi-hop joins
later stage: broad Query-to-select redesign

Repo fit check

Want to know if your repo has this pattern?

Run the matching scanner locally first. Read the free findings and manual alternatives; consider paid cleanup only if supported patterns repeat enough to justify the price.

  • Local scan; no repository upload.
  • Supported findings are separated from manual-review findings.
  • Buy only when the repeated pattern is worth automating.
Run the SQLAlchemy scan first View example report See when to buy 
Example scan summary
supported_findings: 38
manual_review_findings: 6
files_uploaded: 0
confidence: reviewable

Why this page exists

SQLAlchemy 2.0 migration triage checklist

A migration moves faster when the easy syntax cleanup is separated from transaction and query-shape decisions.

Direct answer

What changes

Start with direct syntax cleanup, report execution-boundary changes, and leave broad Query-to-select rewrites for a deliberate stage.

Example

Before and after

Before

1. Warnings and removed imports
2. Repetitive syntax cleanup
3. Execution-boundary failures
4. Query-shape refactors

After

codemod: Query.get, select([..]), simple string paths
manual review: engine.execute, from_self, multi-hop joins
later stage: broad Query-to-select redesign

Decision path

If this repeats across the repo, open the evaluation pages next.

Start with the free scan, inspect the report, and only move to the cleanup pack if the repo has repeated supported patterns that are still expensive to fix by hand.

  • The free scan shows repeated Query.get, select([..]), string join, string loader, declarative import, or DML constructor findings.
  • The remaining supported cleanup is still expensive enough to justify a controlled local migration workflow.
  • If the scan output is ambiguous, review its findings and upstream guidance. Do not buy expecting unsupported cases to be resolved.

Typical symptoms

  • The repo has many different SQLAlchemy warnings at once.
  • Developers are mixing easy syntax edits with risky behavior changes.
  • Managers need a staging plan before approving migration time.

What the product covers

  • A practical order for migration cleanup.
  • Which pages map to each decision bucket.
  • A scanner-first way to qualify product fit.

Manual-review boundary

  • Application-specific transaction rules.
  • Result-shape changes from ORM query rewrites.
  • Migrations that require domain knowledge.

FAQ

Fast answers before you decide

What is the safest fix for SQLAlchemy 2.0 migration checklist?

Start with direct syntax cleanup, report execution-boundary changes, and leave broad Query-to-select rewrites for a deliberate stage.

Can SQLAlchemy 2.0 migration checklist be automated?

Automate only the supported subset: A practical order for migration cleanup. Which pages map to each decision bucket. A scanner-first way to qualify product fit. Keep these cases in manual review: Application-specific transaction rules. Result-shape changes from ORM query rewrites. Migrations that require domain knowledge.

When should I buy SQLAlchemy 1.4 to 2.0 Migration Cleanup Pack?

Use SQLAlchemy 1.4 to 2.0 Migration Cleanup Pack only when this pattern repeats across enough files that manual cleanup is still costly. Use the free report and upstream guide to evaluate fit. Buy only if repeated supported edits justify the price; no paid assessment is required.

Purchase fit

Choose the lowest-risk next step.

One matching page is not enough by itself. Run the local scan, then buy only when the same supported pattern appears often enough to matter.

Buy if

  • The free scan shows repeated Query.get, select([..]), string join, string loader, declarative import, or DML constructor findings.
  • The remaining supported cleanup is still expensive enough to justify a controlled local migration workflow.
  • The team can run the migration on a branch and validate locally before merge.

What the workflow includes

  • Installable local CLI workflow, not a hosted black box.
  • Preview/apply modes, diff output, and JSON migration report.
  • Coverage notes, rollback checklist, manager summary, and buyer terms.

Before checkout

  • Stripe Checkout handles secure payment and receipts.
  • Download your purchased ZIP after payment.
  • Runs locally; no hosted API, repo upload, or production credentials needed.
  • The free report includes the evidence needed to evaluate fit. Paid summary and template add-ons are optional.
  • 14-day refund review for published-scope or delivery mismatches.
Run the SQLAlchemy scan first

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