Add pydantic v2 compatibility

CHANGELOG.md

@@ -3,6 +3,7 @@
 ### [0.4.1] - Unreleased
 - Added `credentials`-field
 - Updated dependencies
+- Add pydantic v2 compatibility
 
 ### [0.4.0] - 2022-11-24
 - Added test for error on extra fields

docs/changelog.md

@@ -3,6 +3,7 @@
 ### [0.4.1] - Unreleased
 - Added `credentials`-field
 - Updated dependencies
+- Add pydantic v2 compatibility
 
 ### [0.4.0] - 2022-11-24
 - Added test for error on extra fields

iscc_schema/base.py

@@ -1,9 +1,13 @@
 # -*- coding: utf-8 -*-
 import json
-
 import jcs
-from pydantic import BaseModel as OriginalBaseModel
-from pydantic import root_validator
+
+try:
+    from pydantic.v1 import BaseModel as OriginalBaseModel
+    from pydantic.v1 import root_validator
+except ImportError:
+    from pydantic import BaseModel as OriginalBaseModel
+    from pydantic import root_validator
 
 
 class BaseModel(OriginalBaseModel):

iscc_schema/fields.py

@@ -9,8 +9,13 @@
 import re
 from re import Pattern
 from typing import Dict, Any, cast
-from pydantic.utils import update_not_none
-from pydantic.validators import constr_length_validator
+
+try:
+    from pydantic.v1.utils import update_not_none
+    from pydantic.v1.validators import constr_length_validator
+except ImportError:
+    from pydantic.utils import update_not_none
+    from pydantic.validators import constr_length_validator
 
 
 class RFC3986Regex:

iscc_schema/generator.py

@@ -7,7 +7,10 @@
 from enum import Enum
 from typing import Any, Dict, List, Optional
 
-from pydantic import Field
+try:
+    from pydantic.v1 import Field
+except ImportError:
+    from pydantic import Field
 from iscc_schema.fields import AnyUrl
 from iscc_schema.base import BaseModel
 
@@ -547,16 +550,12 @@ class NftFreezePostRequest(BaseModel):
     Any JSON object that can be serialized with JCS canonicaliztion.
     """
 
-    pass
-
 
 class MediaEmbeddedMetadata(IsccExtraMetadata, IsccBasicMetadata):
     """
     Media Metadata
     """
 
-    pass
-
 
 class IsccCodePostRequest(MediaEmbeddedMetadata, MediaUpload):
     pass

iscc_schema/schema.py

@@ -7,7 +7,10 @@
 from enum import Enum
 from typing import Any, Dict, List, Optional, Union
 
-from pydantic import Field
+try:
+    from pydantic.v1 import Field
+except ImportError:
+    from pydantic import Field
 from iscc_schema.fields import AnyUrl
 from iscc_schema.base import BaseModel
 
@@ -541,5 +544,3 @@ class IsccMeta(
     """
     ISCC Metadata Schema
     """
-
-    pass