[python] Log contents of manifests we fail to parse by elprans · Pull Request #15019 · vercel/vercel

elprans · 2026-02-12T00:47:14Z

If we failed to parse requirements.txt or any other manifest, dump its
contents to log for easier diagnosis.

Note

Low Risk Change

This PR adds diagnostic logging for file contents when manifest parsing fails, with no changes to validation, security, or business logic.

Adds fileContent property to PythonAnalysisError class for diagnostic purposes
Logs file contents to console when parsing fails for requirements.txt, Pipfile.lock, and config files
Changeset indicates patch-level changes to python-analysis and python packages

^{Risk assessment for commit 5880178.}

If we failed to parse `requirements.txt` or any other manifest, dump its contents to log for easier diagnosis.

changeset-bot · 2026-02-12T00:47:21Z

🦋 Changeset detected

Latest commit: 5880178

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 17 packages

Name	Type
@vercel/python-analysis	Patch
@vercel/python	Patch
@vercel/build-utils	Patch
vercel	Patch
@vercel/backends	Patch
@vercel/client	Patch
@vercel/elysia	Patch
@vercel/express	Patch
@vercel/fastify	Patch
@vercel/gatsby-plugin-vercel-builder	Patch
@vercel/h3	Patch
@vercel/hono	Patch
@vercel/koa	Patch
@vercel/nestjs	Patch
@vercel/node	Patch
@vercel/static-build	Patch
@vercel/cervel	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

github-actions · 2026-02-12T00:49:14Z

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github-actions · 2026-02-12T00:50:19Z

🧪 Unit Test Strategy

Comparing: 9a34759 → 5880178 (view diff)

Strategy: Affected packages only

✅ Only testing packages that have been modified or depend on modified packages.

Affected packages - 40 (100%)

@vercel-internals/get-package-json
@vercel/backends
@vercel/build-utils
@vercel/cervel
@vercel/cli-auth
@vercel/client
@vercel/config
@vercel/detect-agent
@vercel/edge
@vercel/elysia
@vercel/error-utils
@vercel/express
@vercel/fastify
@vercel/firewall
@vercel/frameworks
@vercel/fs-detectors
@vercel/functions
@vercel/gatsby-plugin-vercel-builder
@vercel/go
@vercel/h3
@vercel/hono
@vercel/hydrogen
@vercel/koa
@vercel/nestjs
@vercel/next
@vercel/node
@vercel/oidc
@vercel/oidc-aws-credentials-provider
@vercel/python
@vercel/python-analysis
@vercel/redwood
@vercel/related-projects
@vercel/remix-builder
@vercel/routing-utils
@vercel/ruby
@vercel/rust
@vercel/static-build
@vercel/static-config
examples
vercel

Results

Unit tests: Only affected packages will run unit tests
E2E tests: Handled separately (Version Packages PRs or run-e2e-tests label)
Type checks: Only affected packages will run type checks

This comment is automatically generated based on the affected testing strategy

packages/python/src/index.ts

msullivan

LGTM

This PR was opened by the [Changesets release](https://github.com/changesets/action) GitHub action. When you're ready to do a release, you can merge this and the packages will be published to npm automatically. If you're not ready to do a release yet, that's fine, whenever you add more changesets to main, this PR will be updated. # Releases ## @vercel/build-utils@13.4.0 ### Minor Changes - [services] synchronize dependencies in dev mode for JS/TS and Python services ([#14987](#14987)) ### Patch Changes - Add new expirementalTrigger format for queues v2beta ([#14970](#14970)) - Updated dependencies \[[`a960cf23a42ff1a570c808ee9567670c24422f98`](a960cf2)]: - @vercel/python-analysis@0.4.1 ## vercel@50.16.0 ### Minor Changes - [services] synchronize dependencies in dev mode for JS/TS and Python services ([#14987](#14987)) - Add `contract` cli cmd for checking contract commitments ([#14735](#14735)) - Add `usage` command to check billing and usage information ([#14733](#14733)) ### Patch Changes - Add `--plan` flag to `vercel integration add` for specifying a billing plan ID ([#14965](#14965)) - Include the current Vercel CLI version in `.vercel/output/builds.json` generated by `vercel build`. ([#14999](#14999)) - Fixed deployment rate limit error message displaying incorrect retry time ([#14947](#14947)) - [services] services dev server orchestrator framework fallback fix ([#14985](#14985)) - Add new expirementalTrigger format for queues v2beta ([#14970](#14970)) - non-interactive mode for link - selectOrg ([#15003](#15003)) - non-interactive mode for link ([#15001](#15001)) - Remove tags column from `integration discover` table and compact terminal views to reduce width on small screens. Tags remain available in JSON output. ([#15000](#15000)) - non-interactive mode for link - enable for agents ([#15002](#15002)) - Add `--breakdown` option to `vercel usage` for viewing usage broken down by period ([#14741](#14741)) - Updated dependencies \[[`8f2c79045858cd41fa89522ee13f2ce5d6c81be1`](8f2c790), [`2686071de8e17161babea397fcd12226de8ecce9`](2686071), [`a960cf23a42ff1a570c808ee9567670c24422f98`](a960cf2)]: - @vercel/build-utils@13.4.0 - @vercel/python@6.12.0 - @vercel/backends@0.0.33 - @vercel/elysia@0.1.36 - @vercel/express@0.1.45 - @vercel/fastify@0.1.39 - @vercel/go@3.4.0 - @vercel/h3@0.1.45 - @vercel/hono@0.2.39 - @vercel/hydrogen@1.3.5 - @vercel/koa@0.1.19 - @vercel/nestjs@0.2.40 - @vercel/next@4.15.28 - @vercel/node@5.6.3 - @vercel/redwood@2.4.9 - @vercel/remix-builder@5.5.10 - @vercel/ruby@2.3.0 - @vercel/rust@1.0.5 - @vercel/static-build@2.8.37 ## @vercel/python@6.12.0 ### Minor Changes - [services] synchronize dependencies in dev mode for JS/TS and Python services ([#14987](#14987)) ### Patch Changes - log contents of malformed manifests ([#15019](#15019)) - Updated dependencies \[[`a960cf23a42ff1a570c808ee9567670c24422f98`](a960cf2)]: - @vercel/python-analysis@0.4.1 ## @vercel/backends@0.0.33 ### Patch Changes - Updated dependencies \[[`8f2c79045858cd41fa89522ee13f2ce5d6c81be1`](8f2c790), [`2686071de8e17161babea397fcd12226de8ecce9`](2686071)]: - @vercel/build-utils@13.4.0 ## @vercel/cervel@0.0.20 ### Patch Changes - Updated dependencies \[]: - @vercel/backends@0.0.33 ## @vercel/client@17.2.40 ### Patch Changes - Updated dependencies \[[`8f2c79045858cd41fa89522ee13f2ce5d6c81be1`](8f2c790), [`2686071de8e17161babea397fcd12226de8ecce9`](2686071)]: - @vercel/build-utils@13.4.0 ## @vercel/config@0.0.30 ### Patch Changes - Add new expirementalTrigger format for queues v2beta ([#14970](#14970)) ## @vercel/elysia@0.1.36 ### Patch Changes - Updated dependencies \[]: - @vercel/node@5.6.3 ## @vercel/express@0.1.45 ### Patch Changes - Updated dependencies \[]: - @vercel/node@5.6.3 - @vercel/cervel@0.0.20 ## @vercel/fastify@0.1.39 ### Patch Changes - Updated dependencies \[]: - @vercel/node@5.6.3 ## @vercel/gatsby-plugin-vercel-builder@2.0.135 ### Patch Changes - Updated dependencies \[[`8f2c79045858cd41fa89522ee13f2ce5d6c81be1`](8f2c790), [`2686071de8e17161babea397fcd12226de8ecce9`](2686071)]: - @vercel/build-utils@13.4.0 ## @vercel/h3@0.1.45 ### Patch Changes - Updated dependencies \[]: - @vercel/node@5.6.3 ## @vercel/hono@0.2.39 ### Patch Changes - Updated dependencies \[]: - @vercel/node@5.6.3 ## @vercel/koa@0.1.19 ### Patch Changes - Updated dependencies \[]: - @vercel/node@5.6.3 ## @vercel/mcp-adapter@0.3.2 ### Patch Changes - Fix .repository field in package.json to make it possible to publish ([#14997](#14997)) ## @vercel/nestjs@0.2.40 ### Patch Changes - Updated dependencies \[]: - @vercel/node@5.6.3 ## @vercel/node@5.6.3 ### Patch Changes - Updated dependencies \[[`8f2c79045858cd41fa89522ee13f2ce5d6c81be1`](8f2c790), [`2686071de8e17161babea397fcd12226de8ecce9`](2686071)]: - @vercel/build-utils@13.4.0 ## @vercel/python-analysis@0.4.1 ### Patch Changes - log contents of malformed manifests ([#15019](#15019)) ## @vercel/static-build@2.8.37 ### Patch Changes - Updated dependencies \[]: - @vercel/gatsby-plugin-vercel-builder@2.0.135 ## @vercel/python-runtime@0.4.0 ### Minor Changes - Install \_runtime_requirements.txt during lambda execution if provided. ([#15011](#15011)) Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

[python] Log contents of manifests we fail to parse

1a9beb7

If we failed to parse `requirements.txt` or any other manifest, dump its contents to log for easier diagnosis.

elprans requested review from a team as code owners February 12, 2026 00:47

vercel bot deployed to Preview February 12, 2026 00:49 View deployment

vercel bot reviewed Feb 12, 2026

View reviewed changes

packages/python/src/index.ts Outdated Show resolved Hide resolved

move read back into try/catch

7ed1bb0

vercel bot deployed to Preview February 12, 2026 00:52 View deployment

elprans added run-e2e-tests area: python labels Feb 12, 2026

msullivan approved these changes Feb 12, 2026

View reviewed changes

Also consider _VALIDATION_ERROR

e5e5c12

vercel bot deployed to Preview February 12, 2026 02:11 View deployment

elprans enabled auto-merge (squash) February 12, 2026 04:06

Merge branch 'main' into elprans/python-parse-error-diag

b6862bb

vercel bot deployed to Preview February 12, 2026 04:07 View deployment

Merge branch 'main' into elprans/python-parse-error-diag

c078bae

vercel bot deployed to Preview February 12, 2026 04:54 View deployment

Merge branch 'main' into elprans/python-parse-error-diag

5880178

vercel bot deployed to Preview February 12, 2026 05:33 View deployment

elprans merged commit a960cf2 into main Feb 12, 2026
203 checks passed

elprans deleted the elprans/python-parse-error-diag branch February 12, 2026 05:37

vercel-release-bot mentioned this pull request Feb 12, 2026

Version Packages #14998

Merged

elprans mentioned this pull request Feb 12, 2026

[python] Support python functions >250mb in size #14976

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[python] Log contents of manifests we fail to parse#15019

[python] Log contents of manifests we fail to parse#15019
elprans merged 6 commits intomainfrom
elprans/python-parse-error-diag

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