moving validators

README.rst

@@ -9,7 +9,7 @@ Data validation and settings management using python 3.6 type hinting.
 
 TODO:
 
-* datetime types
+* datetime types, enums
 * other types: regex, email field
 * exotic typing: Union, List, Dict
 * more info: alt names and descriptions

pydantic/fields.py

@@ -1,87 +1,10 @@
 import inspect
 from collections import OrderedDict
 from enum import IntEnum
-from pathlib import Path
-from typing import Any, Callable, List, Optional, Type
+from typing import Any, Callable, List, Type
 
 from .exceptions import ConfigError
-
-NoneType = type(None)
-
-
-def not_none_validator(v):
-    if v is None:
-        raise TypeError('None is not an allow value')
-    return v
-
-
-def str_validator(v) -> str:
-    if isinstance(v, (str, NoneType)):
-        return v
-    elif isinstance(v, bytes):
-        return v.decode()
-    return str(v)
-
-
-def bytes_validator(v) -> bytes:
-    if isinstance(v, (bytes, NoneType)):
-        return v
-    return str_validator(v).encode()
-
-
-BOOL_STRINGS = {
-    '1',
-    'TRUE',
-    'ON',
-}
-
-
-def bool_validator(v) -> bool:
-    if isinstance(v, bool):
-        return v
-    if isinstance(v, bytes):
-        v = v.decode()
-    if isinstance(v, str):
-        return v.upper() in BOOL_STRINGS
-    return bool(v)
-
-
-def number_size_validator(v, m):
-    if m.config.min_number_size <= v <= m.config.max_number_size:
-        return v
-    raise ValueError(f'size not in range {m.config.min_number_size} to {m.config.max_number_size}')
-
-
-def anystr_length_validator(v, m):
-    if v is None or m.config.min_anystr_length <= len(v) <= m.config.max_anystr_length:
-        return v
-    raise ValueError(f'length not in range {m.config.max_anystr_length} to {m.config.max_anystr_length}')
-
-
-def dict_validator(v) -> dict:
-    if isinstance(v, dict):
-        return v
-    return dict(v)
-
-
-VALIDATORS_LOOKUP = {
-    int: [int, number_size_validator],
-    float: [float, number_size_validator],
-    bool: [bool_validator],
-
-    Path: [Path],
-
-    # TODO could do this better by detecting option Unions, removing not_none_validator and dealing with it directly
-    Optional[str]: [str_validator, anystr_length_validator],
-    str: [not_none_validator, str_validator, anystr_length_validator],
-
-    Optional[bytes]: [bytes_validator, anystr_length_validator],
-    bytes: [not_none_validator, bytes_validator, anystr_length_validator],
-
-    dict: [not_none_validator, dict_validator]
-
-    # TODO list, List, Dict, Union, datetime, date, time, custom types
-}
+from .validators import VALIDATORS_LOOKUP
 
 
 class ValidatorSignature(IntEnum):

pydantic/main.py

@@ -2,7 +2,8 @@ from collections import OrderedDict
 from types import FunctionType
 
 from .exceptions import ValidationError
-from .fields import Field, dict_validator
+from .fields import Field
+from .validators import dict_validator
 
 
 class BaseConfig:

pydantic/types.py

@@ -1,7 +1,7 @@
 from typing import Optional, Type
 
-from .fields import str_validator
 from .utils import import_string, make_dsn
+from .validators import str_validator
 
 __all__ = [
     'NoneStr',