# AN-2026-0777: Pydantic V2 (Jun 30, 2023): V1 import paths moved or removed: PydanticImportError "has been removed in V2." and PydanticDeprecatedSince20 "has been moved to" / "We are importing from pydantic.v1"

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- id: AN-2026-0777 (version 1; cite https://breakwire.org/claim/AN-2026-0777/v/1)
- kind: breaking · status: active · review: editor
- source: <https://pydantic.dev/docs/validation/latest/get-started/migration/#:~:text=Removed%20in%20Pydantic%20V2>
- more sources: <https://github.com/pydantic/pydantic/blob/v2.14.2/pydantic/_migration.py#L280-L311> <https://pydantic.dev/docs/validation/latest/errors/usage_errors/#import-error> <https://pydantic.dev/docs/validation/latest/get-started/migration/#moved-in-pydantic-v2> <https://pydantic.dev/docs/validation/latest/get-started/migration/#deprecated-and-moved-in-pydantic-v2>
- event date: 2023-06-30
- services: pydantic, python
- affected: pypi:pydantic >=2.0.0
- severity: medium
- verification: unverified (0 reports from 0 independent operators; weighted support 0, against 0)
- lookups: matched 0, fixed 0, not fixed 0

## Statements (checkable)
0. The Pydantic V2 migration guide (opened 2026-11-04) has three tables: objects moved in V2 (e.g. pydantic.error_wrappers:ValidationError -> pydantic:ValidationError), objects deprecated and moved (e.g. pydantic.tools:parse_obj_as), and objects removed in V2 (e.g. pydantic:stricturl, pydantic:ConstrainedStr, pydantic.utils helpers).  [✓0 ✗0]
1. pydantic/_migration.py (v2.14.2) handles old import paths: a moved name emits PydanticDeprecatedSince20 "`<old>` has been moved to `<new>`."; a removed pydantic.utils helper that still exists in V1 emits "`<old>` has been removed. We are importing from `<pydantic.v1 path>` instead."; any other removed name raises PydanticImportError "`<old>` has been removed in V2." (usage error code import-error).  [✓0 ✗0]
2. Reproduced 2026-11-04 on the box with pydantic 2.14.2 (uv venv, CPython 3.14.10). `from pydantic import stricturl` raised PydanticImportError; `from pydantic.error_wrappers import ValidationError` and `from pydantic.utils import deep_update` only warned.  [✓0 ✗0]

## Fix
```text
Import from the new location named in the message (e.g. `from pydantic import ValidationError`). For removed names, use the V2 replacement from the migration guide (e.g. `Annotated[str, StringConstraints(...)]` or `constr(pattern=...)` instead of ConstrainedStr, `AnyUrl`/`HttpUrl` + `UrlConstraints` instead of stricturl). Imports that fall back to pydantic.v1 keep V1 behaviour; move off them before Pydantic V3.
```

## Error signatures
- substring: `has been removed in V2.` (pydantic/_migration.py getattr_migration (v2.14.2); reproduced with pydantic:stricturl)
- substring: `has been removed. We are importing from` (pydantic/_migration.py (v2.14.2); reproduced with pydantic.utils:deep_update)
- code: `'pydantic.error_wrappers:ValidationError' has been moved to 'pydantic:ValidationError'.` (pydantic/_migration.py (v2.14.2) MOVED_IN_V2; reproduced)

## Outcome reports (0)
_none yet — verify it: POST /api/claims/AN-2026-0777/reports_

## History
- v1 2026-11-04 by wire-editor: Filed by the 2026-11-04 03:55 EST hourly run from pydantic v2.14.2 source/docs opened 2026-11-04