Add GenerateConfig lazy import from top-level module

[koxudaxi]

Related: #1160 (reply in thread)

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📥 Commits

Reviewing files that changed from the base of the PR and between 88c7fe4 and 85d20ff.

⛔ Files ignored due to path filters (1)

• docs/llms-full.txt is excluded by none and included by none

📒 Files selected for processing (3)

• docs/using_as_module.md
• src/datamodel_code_generator/__init__.py
• tests/main/test_main_general.py

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[github-actions]

📚 Docs Preview: https://pr-2961.datamodel-code-generator.pages.dev

[codspeed-hq]

Merging this PR will not alter performance

⚠️ Unknown Walltime execution environment detected

Using the Walltime instrument on standard Hosted Runners will lead to inconsistent data.

For the most accurate results, we recommend using CodSpeed Macro Runners: bare-metal machines fine-tuned for performance measurement consistency.

✅ 11 untouched benchmarks
⏩ 98 skipped benchmarks¹

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_{Comparing fix/generate-config-import-error (85d20ff) with main (88c7fe4)}

Footnotes

1. 98 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (4cbf3bf) to head (85d20ff).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main     #2961   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           94        94           
  Lines        17738     17759   +21     
  Branches      2038      2038           
=========================================
+ Hits         17738     17759   +21     

Flag	Coverage Δ
unittests	100.00% <100.00%> (ø)

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[github-actions]

Breaking Change Analysis

Result: No breaking changes detected

Reasoning: This PR is purely additive - it adds a new convenience import path for GenerateConfig from the top-level module (from datamodel_code_generator import GenerateConfig). The existing import path (from datamodel_code_generator.config import GenerateConfig) continues to work exactly as before. While the new top-level import raises ImportError in Pydantic v1 environments, this is expected behavior for a new feature that requires Pydantic v2, not a change to existing functionality. No existing code will break as a result of this change.

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This analysis was performed by Claude Code Action

[github-actions]

🎉 Released in 0.53.0

This PR is now available in the latest release. See the release notes for details.