Allow pydantic v2 using transitional v1 support (#12888)

requirements.txt

@@ -16,7 +16,7 @@ smart-open>=5.2.1,<7.0.0
 numpy>=1.15.0
 requests>=2.13.0,<3.0.0
 tqdm>=4.38.0,<5.0.0
-pydantic>=1.7.4,!=1.8,!=1.8.1,<1.11.0
+pydantic>=1.7.4,!=1.8,!=1.8.1,<3.0.0
 jinja2
 langcodes>=3.2.0,<4.0.0
 # Official Python utilities

setup.cfg

@@ -58,7 +58,7 @@ install_requires =
     tqdm>=4.38.0,<5.0.0
     numpy>=1.15.0
     requests>=2.13.0,<3.0.0
-    pydantic>=1.7.4,!=1.8,!=1.8.1,<1.11.0
+    pydantic>=1.7.4,!=1.8,!=1.8.1,<3.0.0
     jinja2
     # Official Python utilities
     setuptools

spacy/pipeline/_edit_tree_internals/schemas.py

@@ -1,8 +1,12 @@
 from collections import defaultdict
 from typing import Any, Dict, List, Union
 
-from pydantic import BaseModel, Field, ValidationError
-from pydantic.types import StrictBool, StrictInt, StrictStr
+try:
+    from pydantic.v1 import BaseModel, Field, ValidationError
+    from pydantic.v1.types import StrictBool, StrictInt, StrictStr
+except ImportError:
+    from pydantic import BaseModel, Field, ValidationError  # type: ignore
+    from pydantic.types import StrictBool, StrictInt, StrictStr  # type: ignore
 
 
 class MatchNodeSchema(BaseModel):

spacy/schemas.py

@@ -16,19 +16,34 @@ from typing import (
     Union,
 )
 
-from pydantic import (
-    BaseModel,
-    ConstrainedStr,
-    Field,
-    StrictBool,
-    StrictFloat,
-    StrictInt,
-    StrictStr,
-    ValidationError,
-    create_model,
-    validator,
-)
-from pydantic.main import ModelMetaclass
+try:
+    from pydantic.v1 import (
+        BaseModel,
+        ConstrainedStr,
+        Field,
+        StrictBool,
+        StrictFloat,
+        StrictInt,
+        StrictStr,
+        ValidationError,
+        create_model,
+        validator,
+    )
+    from pydantic.v1.main import ModelMetaclass
+except ImportError:
+    from pydantic import (  # type: ignore
+        BaseModel,
+        ConstrainedStr,
+        Field,
+        StrictBool,
+        StrictFloat,
+        StrictInt,
+        StrictStr,
+        ValidationError,
+        create_model,
+        validator,
+    )
+    from pydantic.main import ModelMetaclass  # type: ignore
 from thinc.api import ConfigValidationError, Model, Optimizer
 from thinc.config import Promise
 

spacy/tests/pipeline/test_initialize.py

@@ -1,5 +1,10 @@
 import pytest
-from pydantic import StrictBool
+
+try:
+    from pydantic.v1 import StrictBool
+except ImportError:
+    from pydantic import StrictBool  # type: ignore
+
 from thinc.api import ConfigValidationError
 
 from spacy.lang.en import English

spacy/tests/pipeline/test_pipe_factories.py

@@ -1,5 +1,10 @@
 import pytest
-from pydantic import StrictInt, StrictStr
+
+try:
+    from pydantic.v1 import StrictInt, StrictStr
+except ImportError:
+    from pydantic import StrictInt, StrictStr  # type: ignore
+
 from thinc.api import ConfigValidationError, Linear, Model
 
 import spacy

spacy/tests/test_misc.py

@@ -3,7 +3,12 @@ import os
 from pathlib import Path
 
 import pytest
-from pydantic import ValidationError
+
+try:
+    from pydantic.v1 import ValidationError
+except ImportError:
+    from pydantic import ValidationError  # type: ignore
+
 from thinc.api import (
     Config,
     ConfigValidationError,