error uploading datetime object from python sqlalchemy

pydantic

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Data validation and settings management using Python type hinting.

Fast and extensible, pydantic plays nicely with your linters/IDE/brain. Define how information should be in pure, canonical Python iii.6+; validate information technology with pydantic.

Help

See documentation for more details.

Installation

Install using pip install -U pydantic or conda install pydantic -c conda-forge. For more installation options to make pydantic even faster, see the Install section in the documentation.

A Elementary Case

          from          datetime          import          datetime          from          typing          import          List          ,          Optional          from          pydantic          import          BaseModel          class          User          (          BaseModel          ):          id          :          int          name          =          'John Doe'          signup_ts          :          Optional          [          datetime          ]          =          None          friends          :          List          [          int          ]          =          []          external_data          =          {          'id'          :          '123'          ,          'signup_ts'          :          '2017-06-01 12:22'          ,          'friends'          :          [          1          ,          '2'          ,          b          '3'          ]}          user          =          User          (          **          external_data          )          print          (          user          )          #> User id=123 proper noun='John Doe' signup_ts=datetime.datetime(2017, 6, i, 12, 22) friends=[1, 2, three]          impress          (          user          .          id          )          #> 123

Contributing

For guidance on setting upwardly a development environs and how to make a contribution to pydantic, see Contributing to Pydantic.

Reporting a Security Vulnerability

See our security policy.

v1.ix.0 (2021-12-31)

Thank you to pydantic'south sponsors: @sthagen, @timdrijvers, @toinbis, @koxudaxi, @ginomempin, @primer-io, @and-semakin, @westonsteimel, @reillysiemens, @es3n1n, @jokull, @JonasKs, @Rehket, @corleyma, @daddycocoaman, @hardbyte, @datarootsio, @jodal, @aminalaee, @rafsaf, @jqueguiner, @chdsbd, @kevinalh, @Mazyod, @grillazz, @JonasKs, @simw, @leynier, @xfenix for their kind support.

Highlights

add together python 3.10 support, #2885 by @PrettyWood
Discriminated unions, #619 by @PrettyWood
Config.smart_union for better union logic, #2092 by @PrettyWood
Binaries for Macos M1 CPUs, #3498 by @samuelcolvin
Circuitous types tin be prepare via nested surround variables, eastward.grand. foo___bar, #3159 by @Air-Mark
add a dark mode to pydantic documentation, #2913 by @gbdlin
Add together support for autocomplete in VS Code via __dataclass_transform__, #2721 by @tiangolo
Add together "exclude" as a field parameter so that information technology can exist configured using model config, #660 by @daviskirk

v1.9.0 (2021-12-31) Changes

Use update_forward_refs to Config.json_encodes prevent name clashes in types defined via strings, #3583 past @samuelcolvin
Extend pydantic'due south mypy plugin to support mypy versions 0.910, 0.920, 0.921 & 0.930, #3573 & #3594 by @PrettyWood, @christianbundy, @samuelcolvin

v1.nine.0a2 (2021-12-24) Changes

support generic models with discriminated union, #3551 by @PrettyWood
continue old behaviour of json() past default, #3542 by @PrettyWood
Removed typing-only __root__ attribute from BaseModel, #3540 past @layday
Build Python 3.ten wheels, #3539 by @mbachry
Fix display of extra fields with model __repr__, #3234 by @cocolman
models copied via Config.copy_on_model_validation always take all fields, #3201 past @PrettyWood
nested ORM from nested dictionaries, #3182 by @PrettyWood
prepare link to discriminated union section by @PrettyWood

v1.nine.0a1 (2021-12-18) Changes

Add support for Decimal-specific validation configurations in Field(), additionally to using condecimal(), to permit better support from editors and tooling, #3507 past @tiangolo
Add together arm64 binaries suitable for MacOS with an M1 CPU to PyPI, #3498 past @samuelcolvin
Fix result where None was considered invalid when using a Union type containing Any or object, #3444 by @tharradine
When generating field schema, pass optional field argument (of type pydantic.fields.ModelField) to __modify_schema__() if nowadays, #3434 past @jasujm
Prepare issue when pydantic fail to parse typing.ClassVar string blazon note, #3401 by @uriyyo
Mention Python >= three.nine.2 as an alternative to typing_extensions.TypedDict, #3374 by @BvB93
Changed the validator method proper noun in the Custom Errors instance to more accurately describe what the validator is doing; changed from name_must_contain_space to value_must_equal_bar, #3327 by @michaelrios28
Add together AmqpDsn course, #3254 past @kludex
Always use Enum value equally default in generated JSON schema, #3190 by @joaommartins
Add support for Mypy 0.920, #3175 by @christianbundy
validate_arguments now supports actress customization (used to always be Extra.forbid), #3161 by @PrettyWood
Circuitous types can be set by nested environment variables, #3159 past @Air-Mark
Fix mypy plugin to collect fields based on pydantic.utils.is_valid_field and so that it ignores untyped private variables, #3146 by @hi-ogawa
fix validate_arguments consequence with Config.validate_all, #3135 past @PrettyWood
avoid dict compulsion when using dict subclasses as field type, #3122 by @PrettyWood
add support for object type, #3062 by @PrettyWood
Updates pydantic dataclasses to keep _special backdrop on parent classes, #3043 past @zulrang
Add a TypedDict class for mistake objects, #3038 by @matthewhughes934
Prepare support for using a subclass of an notation as a default, #3018 past @JacobHayes
brand create_model_from_typeddict mypy compliant, #3008 past @PrettyWood
Make multiple inheritance piece of work when using PrivateAttr, #2989 by @hmvp
Parse environment variables as JSON, if they have a Union blazon with a complex subfield, #2936 past @cbartz
Preclude StrictStr permitting Enum values where the enum inherits from str, #2929 past @samuelcolvin
Make SecretsSettingsSource parse values beingness assigned to fields of circuitous types when sourced from a secrets file, simply as when sourced from environment variables, #2917 by @davidmreed
add a dark manner to pydantic documentation, #2913 by @gbdlin
Make pydantic-mypy plugin compatible with pyproject.toml configuration, consistent with mypy changes. See the doctor for more than information, #2908 by @jrwalk
add python 3.10 support, #2885 by @PrettyWood
Correctly parse generic models with Json[T], #2860 by @geekingfrog
Update contrib docs re: python version to use for edifice docs, #2856 by @paxcodes
Clarify documentation about pydantic'south support for custom validation and strict blazon checking, despite pydantic being primarily a parsing library, #2855 by @paxcodes
Fix schema generation for Deque fields, #2810 by @sergejkozin
fix an edge case when mixing constraints and Literal, #2794 past @PrettyWood
Gear up postponed annotation resolution for NamedTuple and TypedDict when they're used straight as the type of fields inside Pydantic models, #2760 by @jameysharp
Fix bug when mypy plugin fails on construct method telephone call for BaseSettings derived classes, #2753 by @uriyyo
Add function overloading for a pydantic.create_model function, #2748 past @uriyyo
Set mypy plugin issue with self field proclamation, #2743 past @uriyyo
The colon at the cease of the line "The fields which were supplied when user was initialised:" suggests that the code post-obit information technology is related. Changed it to a period, #2733 by @krisaoe
Renamed variable schema to schema_ to avoid shadowing of global variable name, #2724 by @shahriyarr
Add support for autocomplete in VS Code via __dataclass_transform__, #2721 past @tiangolo
add missing type annotations in BaseConfig and handle max_length = 0, #2719 past @PrettyWood
Change orm_mode checking to allow recursive ORM mode parsing with dicts, #2718 by @nuno-andre
Add episode 313 of the Talk Python To Me podcast, where Michael Kennedy and Samuel Colvin discuss pydantic, to the docs, #2712 by @RatulMaharaj
gear up JSON schema generation when a field is of type NamedTuple and has a default value, #2707 by @PrettyWood
Enum fields at present properly support extra kwargs in schema generation, #2697 by @sammchardy
Make serialization of referenced pydantic models possible, #2650 past @PrettyWood
Add uniqueItems pick to ConstrainedList, #2618 past @nuno-andre
Try to evaluate forward refs automatically at model cosmos, #2588 by @uriyyo
Switch docs preview and coverage display to use smokeshow, #2580 past @samuelcolvin
Add __version__ aspect to pydantic module, #2572 by @paxcodes
Add postgresql+asyncpg, postgresql+pg8000, postgresql+psycopg2, postgresql+psycopg2cffi, postgresql+py-postgresql and postgresql+pygresql schemes for PostgresDsn, #2567 by @postgres-asyncpg
Enable the Hypothesis plugin to generate a constrained decimal when the decimal_places argument is specified, #2524 by @cwe5590
Allow collections.abc.Callable to be used every bit blazon in python 3.9, #2519 past @daviskirk
Documentation update how to custom compile pydantic when using pip install, small change in setup.py to allow for custom CFLAGS when compiling, #2517 by @peterroelants
remove side effect of default_factory to run it only in one case fifty-fifty if Config.validate_all is set, #2515 by @PrettyWood
Add lookahead to ip regexes for AnyUrl hosts. This allows urls with DNS labels looking similar IPs to validate as they are perfectly valid host names, #2512 by @sbv-csis
Set minItems and maxItems in generated JSON schema for stock-still-length tuples, #2497 by @PrettyWood
Add strict argument to conbytes, #2489 by @koxudaxi
Support user defined generic field types in generic models, #2465 by @daviskirk
Add together an example and a brusque caption of subclassing GetterDict to docs, #2463 by @nuno-andre
add together KafkaDsn type, HttpUrl now has default port lxxx for http and 443 for https, #2447 by @MihanixA
Add PastDate and FutureDate types, #2425 past @Kludex
Support generating schema for Generic fields with subtypes, #2375 by @maximberg
set(encoder): serialize NameEmail to str, #2341 past @alecgerona
add together Config.smart_union to preclude coercion in Marriage if possible, come across the doc for more information, #2092 by @PrettyWood
Add ability to use typing.Counter as a model field type, #2060 by @uriyyo
Add parameterised subclasses to __bases__ when constructing new parameterised classes, so that A <: B => A[int] <: B[int], #2007 by @diabolo-dan
Create FileUrl blazon that allows URLs that conform to RFC 8089. Add host_required parameter, which is True by default (AnyUrl and subclasses), False in RedisDsn, FileUrl, #1983 by @vgerak
add confrozenset(), coordinating to conset() and conlist(), #1897 by @PrettyWood
stop calling parent class root_validator if overridden, #1895 past @PrettyWood
Add together repr (defaults to Truthful) parameter to Field, to hide it from the default representation of the BaseModel, #1831 by @fnep
Accept empty query/fragment URL parts, #1807 by @xavier

v1.eight.2 (2021-05-11)

!!! alarm A security vulnerability, level "moderate" is fixed in v1.viii.2. Please upgrade ASAP. See security advisory CVE-2021-29510

Security gear up: Fix date and datetime parsing and so passing either 'infinity' or bladder('inf') (or their negative values) does not cause an space loop, see security advisory CVE-2021-29510
prepare schema generation with Enum by generating a valid proper name, #2575 past @PrettyWood
fix JSON schema generation with a Literal of an enum member, #2536 by @PrettyWood
Ready problems with configurations declarations that are passed as keyword arguments during class cosmos, #2532 by @uriyyo
Allow passing json_encoders in class kwargs, #2521 by @layday
support arbitrary types with custom __eq__, #2483 by @PrettyWood
support Annotated in validate_arguments and in generic models with python 3.9, #2483 by @PrettyWood

v1.8.i (2021-03-03)

Issues fixes for regressions and new features from v1.8

allow elements of Config.field to update elements of a Field, #2461 by @samuelcolvin
fix validation with a BaseModel field and a custom root blazon, #2449 by @PrettyWood
expose Pattern encoder to fastapi, #2444 by @PrettyWood
enable the Hypothesis plugin to generate a constrained float when the multiple_of argument is specified, #2442 by @tobi-lipede-oodle
Avoid RecursionError when using some types like Enum or Literal with generic models, #2436 by @PrettyWood
practise not overwrite declared __hash__ in subclasses of a model, #2422 by @PrettyWood
prepare mypy complaints on Path and UUID related custom types, #2418 by @PrettyWood
Support properly variable length tuples of compound types, #2416 by @PrettyWood

v1.8 (2021-02-26)

Thank you lot to pydantic'due south sponsors: @jorgecarleitao, @BCarley, @chdsbd, @tiangolo, @matin, @linusg, @kevinalh, @koxudaxi, @timdrijvers, @mkeen, @meadsteve, @ginomempin, @primer-io, @and-semakin, @tomthorogood, @AjitZK, @westonsteimel, @Mazyod, @christippett, @CarlosDomingues, @Kludex, @r-m-north for their kind support.

Highlights

Hypothesis plugin for testing, #2097 by @Zac-Hd
support for NamedTuple and TypedDict, #2216 past @PrettyWood
Support Annotated hints on model fields, #2147 by @JacobHayes
frozen parameter on Config to permit models to exist hashed, #1880 past @rhuille

Changes

Breaking Change, remove sometime deprecation aliases from v1, #2415 by @samuelcolvin:
- remove notes on migrating to v1 in docs
- remove Schema which was replaced by Field
- remove Config.case_insensitive which was replaced past Config.case_sensitive (default False)
- remove Config.allow_population_by_alias which was replaced by Config.allow_population_by_field_name
- remove model.fields which was replaced past model.__fields__
- remove model.to_string() which was replaced by str(model)
- remove model.__values__ which was replaced by model.__dict__
Breaking Change: e'er validate only first sublevel items with each_item. There were indeed some edge cases with some chemical compound types where the validated items were the last sublevel ones, #1933 by @PrettyWood
Update docs extensions to fix local syntax highlighting, #2400 past @daviskirk
fix: allow utils.lenient_issubclass to handle typing.GenericAlias objects similar listing[str] in python >= iii.9, #2399 by @daviskirk
Improve field declaration for pydantic dataclass by allowing the usage of pydantic Field or 'metadata' kwarg of dataclasses.field, #2384 past @PrettyWood
Making typing-extensions a required dependency, #2368 past @samuelcolvin
Make resolve_annotations more lenient, allowing for missing modules, #2363 past @samuelcolvin
Allow configuring models through class kwargs, #2356 by @Bobronium
Prevent Mapping subclasses from always being coerced to dict, #2325 past @ofek
fix: allow None for type Optional[conset / conlist], #2320 past @PrettyWood
Support empty tuple blazon, #2318 by @PrettyWood
fix: python_requires metadata to require >=3.6.1, #2306 by @hukkinj1
Properly encode Decimal with, or without any decimal places, #2293 by @hultner
fix: update __fields_set__ in BaseModel.re-create(update=…), #2290 by @PrettyWood
prepare: proceed order of fields with BaseModel.construct(), #2281 by @PrettyWood
Support generating schema for Generic fields, #2262 by @maximberg
Fix validate_decorator so **kwargs doesn't exclude values when the keyword has the aforementioned name as the *args or **kwargs names, #2251 past @cybojenix
Prevent overriding positional arguments with keyword arguments in validate_arguments, as per behaviour with native functions, #2249 by @cybojenix
add together documentation for con* type functions, #2242 past @tayoogunbiyi
Support custom root blazon (aka __root__) when using parse_obj() with nested models, #2238 by @PrettyWood
Support custom root blazon (aka __root__) with from_orm(), #2237 by @PrettyWood
ensure cythonized functions are left untouched when creating models, based on #1944 by @kollmats, #2228 by @samuelcolvin
Resolve forward refs for stdlib dataclasses converted into pydantic ones, #2220 by @PrettyWood
Add support for NamedTuple and TypedDict types. Those two types are now handled and validated when used inside BaseModel or pydantic dataclass. 2 utils are also added create_model_from_namedtuple and create_model_from_typeddict, #2216 past @PrettyWood
Practise non ignore annotated fields when blazon is Union[Type[...], ...], #2213 by @PrettyWood
Heighten a user-friendly TypeError when a root_validator does not return a dict (due east.m. None), #2209 past @masalim2
Add a FrozenSet[str] type annotation to the allowed_schemes statement on the strict_url field type, #2198 by @Midnighter
add allow_mutation constraint to Field, #2195 past @sblack-usu
Let Field with a default_factory to be used as an argument to a function decorated with validate_arguments, #2176 by @thomascobb
Allow non-real secrets directory by merely issuing a warning, #2175 by @davidolrik
fix URL regex to parse fragment without query string, #2168 past @andrewmwhite
fix: ensure to always return i of the values in Literal field type, #2166 past @PrettyWood
Back up typing.Annotated hints on model fields. A Field may now exist set in the type hint with Annotated[..., Field(...); all other annotations are ignored simply still visible with get_type_hints(..., include_extras=True), #2147 by @JacobHayes
Added StrictBytes type also every bit strict=False selection to ConstrainedBytes, #2136 by @rlizzo
added Config.anystr_lower and to_lower kwarg to constr and conbytes, #2134 by @tayoogunbiyi
Support evidently typing.Tuple type, #2132 past @PrettyWood
Add together a bound method validate to functions decorated with validate_arguments to validate parameters without actually calling the office, #2127 by @PrettyWood
Add the ability to customize settings sources (add together / disable / change priority gild), #2107 by @kozlek
Set mypy complaints about most custom pydantic types, #2098 by @PrettyWood
Add a Hypothesis plugin for easier property-based testing with Pydantic's custom types - usage details here, #2097 by @Zac-HD
add validator for None, NoneType or Literal[None], #2095 past @PrettyWood
Handle properly fields of blazon Callable with a default value, #2094 past @PrettyWood
Updated create_model render type notation to return type which inherits from __base__ argument, #2071 by @uriyyo
Add together merged json_encoders inheritance, #2064 by @art049
allow overwriting ClassVars in sub-models without having to re-annotate them, #2061 past @layday
add together default encoder for Pattern type, #2045 by @PrettyWood
Add NonNegativeInt, NonPositiveInt, NonNegativeFloat, NonPositiveFloat, #1975 past @mdavis-xyz
Use % for percentage in string format of colors, #1960 past @EdwardBetts
Fixed effect causing KeyError to be raised when building schema from multiple BaseModel with the same names declared in separate classes, #1912 by @JSextonn
Add rediss (Redis over SSL) protocol to RedisDsn Permit URLs without user part (east.yard., rediss://:pass@localhost), #1911 by @TrDex
Add a new frozen boolean parameter to Config (default: Faux). Setting frozen=Truthful does everything that allow_mutation=False does, and also generates a __hash__() method for the model. This makes instances of the model potentially hashable if all the attributes are hashable, #1880 by @rhuille
ready schema generation with multiple Enums having the aforementioned name, #1857 by @PrettyWood
Added support for xiii/19 digits VISA credit cards in PaymentCardNumber type, #1416 past @AlexanderSov
prepare: prevent RecursionError while using recursive GenericModeldue south, #1370 past @xppt
use enum for typing.Literal in JSON schema, #1350 by @PrettyWood
Fix: some recursive models did not require update_forward_refs and silently behaved incorrectly, #1201 by @PrettyWood
Fix bug where generic models with fields where the typevar is nested in some other type a: Listing[T] are considered to exist concrete. This allows these models to be subclassed and composed as expected, #947 past @daviskirk
Add Config.copy_on_model_validation flag. When fix to Imitation, pydantic will keep models used as fields untouched on validation instead of reconstructing (copying) them, #265 by @PrettyWood

v1.7.four (2021-05-11)

Security fix: Fix engagement and datetime parsing so passing either 'infinity' or float('inf') (or their negative values) does non cause an infinite loop, Come across security advisory CVE-2021-29510

v1.7.3 (2020-11-30)

Thanks to pydantic'due south sponsors: @timdrijvers, @BCarley, @chdsbd, @tiangolo, @matin, @linusg, @kevinalh, @jorgecarleitao, @koxudaxi, @primer-api, @mkeen, @meadsteve for their kind back up.

fix: prepare right default value for required (optional) fields, #2142 by @PrettyWood
fix: support underscore_attrs_are_private with generic models, #2138 by @PrettyWood
fix: update all modified field values in root_validator when validate_assignment is on, #2116 by @PrettyWood
Allow pickling of pydantic.dataclasses.dataclass dynamically created from a built-in dataclasses.dataclass, #2111 by @aimestereo
Gear up a regression where Enum fields would not propagate keyword arguments to the schema, #2109 by @bm424
Ignore __doc__ as individual attribute when Config.underscore_attrs_are_private is set, #2090 by @PrettyWood

v1.7.2 (2020-11-01)

set slow GenericModel concrete model creation, permit GenericModel concrete proper noun reusing in module, #2078 by @Bobronium
keep the order of the fields when validate_assignment is set, #2073 by @PrettyWood
forward all the params of the stdlib dataclass when converted into pydantic dataclass, #2065 past @PrettyWood

v1.7.1 (2020-10-28)

Cheers to pydantic's sponsors: @timdrijvers, @BCarley, @chdsbd, @tiangolo, @matin, @linusg, @kevinalh, @jorgecarleitao, @koxudaxi, @primer-api, @mkeen for their kind back up.

gear up notation of validate_arguments when passing configuration equally argument, #2055 by @layday
Prepare mypy consignment error when using PrivateAttr, #2048 by @aphedges
fix underscore_attrs_are_private causing TypeError when overriding __init__, #2047 by @samuelcolvin
Stock-still regression introduced in v1.seven involving exception handling in field validators when validate_assignment=True, #2044 by @johnsabath
fix: pydantic dataclass tin can inherit from stdlib dataclass and Config.arbitrary_types_allowed is supported, #2042 by @PrettyWood

v1.7 (2020-10-26)

Thank y'all to pydantic's sponsors: @timdrijvers, @BCarley, @chdsbd, @tiangolo, @matin, @linusg, @kevinalh, @jorgecarleitao, @koxudaxi, @primer-api for their kind support.

Highlights

python 3.ix support, thanks @PrettyWood
Individual model attributes, thanks @Bobronium
"secrets files" back up in BaseSettings, thanks @mdgilene
convert stdlib dataclasses to pydantic dataclasses and employ stdlib dataclasses in models, thanks @PrettyWood

Changes

Breaking Modify: remove __field_defaults__, add default_factory support with BaseModel.construct. Use .get_default() method on fields in __fields__ aspect instead, #1732 by @PrettyWood
Rearrange CI to run linting as a split up chore, split install recipes for different tasks, #2020 by @samuelcolvin
Allows subclasses of generic models to make some, or all, of the superclass's blazon parameters physical, while too defining new type parameters in the subclass, #2005 by @choogeboom
Call validator with the right values parameter type in BaseModel.__setattr__, when validate_assignment = True in model config, #1999 by @me-ransh
Forcefulness fields.Undefined to be a singleton object, fixing inherited generic model schemas, #1981 by @daviskirk
Include tests in source distributions, #1976 by @sbraz
Add power to use min_length/max_length constraints with secret types, #1974 by @uriyyo
As well check root_validators when validate_assignment is on, #1971 by @PrettyWood
Fix const validators not running when custom validators are present, #1957 by @hmvp
add deque to field types, #1935 by @wozniakty
add together basic support for python 3.9, #1832 by @PrettyWood
Fix typo in the anchor of exporting_models.md#modelcopy and incorrect description, #1821 by @KimMachineGun
Added power for BaseSettings to read "undercover files", #1820 by @mdgilene
add parse_raw_as utility function, #1812 by @PrettyWood
Support home directory relative paths for dotenv files (e.yard. ~/.env), #1803 by @PrettyWood
Clarify documentation for parse_file to bear witness that the argument should exist a file path non a file-like object, #1794 past @mdavis-xyz
Ready faux positive from mypy plugin when a class nested inside a BaseModel is named Model, #1770 by @selimb
add basic support of Pattern type in schema generation, #1767 past @PrettyWood
Support custom title, clarification and default in schema of enums, #1748 by @PrettyWood
Properly represent Literal Enums when use_enum_values is True, #1747 by @noelevans
Allows timezone information to be added to strings to be formatted as fourth dimension objects. Permitted formats are Z for UTC or an offset for accented positive or negative fourth dimension shifts. Or the timezone data can be omitted, #1744 by @noelevans
Add stub __init__ with python 3.6 signature for ForwardRef, #1738 by @sirtelemak
Fix behaviour with forward refs and optional fields in nested models, #1736 by @PrettyWood
add Enum and IntEnum every bit valid types for fields, #1735 by @PrettyWood
Alter default value of __module__ argument of create_model from None to 'pydantic.main'. Prepare reference of created concrete model to it'south module to let pickling (not applied to models created in functions), #1686 by @Bobronium
Add together private attributes back up, #1679 past @Bobronium
add together config to @validate_arguments, #1663 past @samuelcolvin
Permit descendant Settings models to override env variable names for the fields defined in parent Settings models with env in their Config. Previously only env_prefix configuration pick was applicable, #1561 by @ojomio
Back up ref_template when creating schema $refsouth, #1479 by @kilo59
Add a __call__ stub to PyObject then that mypy will know that information technology is callable, #1352 past @brianmaissy
pydantic.dataclasses.dataclass decorator now supports congenital-in dataclasses.dataclass. It is hence possible to convert an existing dataclass easily to add pydantic validation. Moreover nested dataclasses are besides supported, #744 past @PrettyWood

v1.six.two (2021-05-xi)

Security gear up: Fix date and datetime parsing so passing either 'infinity' or float('inf') (or their negative values) does not cause an infinite loop, See security advisory CVE-2021-29510

v1.six.1 (2020-07-15)

prepare validation and parsing of nested models with default_factory, #1710 by @PrettyWood

v1.6 (2020-07-11)

Thank you to pydantic's sponsors: @matin, @tiangolo, @chdsbd, @jorgecarleitao, and i anonymous sponsor for their kind support.

Alter validators for conlist and conset to not have always=True, #1682 by @samuelcolvin
add port cheque to AnyUrl (can't exceed 65536) ports are 16 insigned $.25: 0 <= port <= ii**16-1 src: rfc793 header format, #1654 by @flapili
Document default regex anchoring semantics, #1648 by @yurikhan
Use chain.from_iterable in class_validators.py. This is a faster and more idiomatic style of using itertools.chain. Instead of calculating all the items in the iterable and storing them in retentiveness, they are computed one-past-ane and never stored as a huge listing. This can relieve on both runtime and memory infinite, #1642 past @absurd-RR
Add conset(), analogous to conlist(), #1623 by @patrickkwang
make pydantic errors (un)pickable, #1616 by @PrettyWood
Allow custom encoding for dotenv files, #1615 by @PrettyWood
Ensure SchemaExtraCallable is ever defined to go type hints on BaseConfig, #1614 past @PrettyWood
Update datetime parser to support negative timestamps, #1600 by @mlbiche
Update mypy, remove AnyType alias for Type[Any], #1598 by @samuelcolvin
Accommodate handling of root validators so that errors are aggregated from all failing root validators, instead of reporting on only the first root validator to fail, #1586 by @beezee
Make __modify_schema__ on Enums apply to the enum schema rather than fields that use the enum, #1581 past @therefromhere
Gear up behavior of __all__ key when used in conjunction with index keys in advanced include/exclude of fields that are sequences, #1579 by @xspirus
Subclass validators practice non run when referencing a List field defined in a parent class when each_item=True. Added an instance to the docs illustrating this, #1566 by @samueldeklund
alter schema.field_class_to_schema to back up frozenset in schema, #1557 past @wangpeibao
Telephone call __modify_schema__ just for the field schema, #1552 by @PrettyWood
Movement the consignment of field.validate_always in fields.py then the always parameter of validators work on inheritance, #1545 past @dcHHH
Added support for UUID instantiation through sixteen byte strings such as b'\x12\x34\x56\x78' * 4. This was washed to support BINARY(xvi) columns in sqlalchemy, #1541 past @shawnwall
Add a exam assertion that default_factory tin render a singleton, #1523 by @therefromhere
Add NameEmail.__eq__ so duplicate NameEmail instances are evaluated as equal, #1514 past @stephen-bunn
Add together datamodel-code-generator link in pydantic document site, #1500 by @koxudaxi
Added a "Discussion of Pydantic" section to the documentation, with a link to "Pydantic Introduction" video by Alexander Hultnér, #1499 by @hultner
Avert some side effects of default_factory by calling information technology only once if possible and past not setting a default value in the schema, #1491 by @PrettyWood
Added docs about dumping dataclasses to JSON, #1487 past @mikegrima
Make BaseModel.__signature__ class-only, so getting __signature__ from model case will heighten AttributeError, #1466 by @Bobronium
include 'format': 'password' in the schema for clandestine types, #1424 by @atheuz
Change schema constraints on ConstrainedFloat so that exclusiveMinimum and minimum are not included in the schema if they are equal to -math.inf and exclusiveMaximum and maximum are non included if they are equal to math.inf, #1417 by @vdwees
Squash internal __root__ dicts in .dict() (and, by extension, in .json()), #1414 by @patrickkwang
Move const validator to post-validators so information technology validates the parsed value, #1410 by @selimb
Set up model validation to handle nested literals, eastward.g. Literal['foo', Literal['bar']], #1364 by @DBCerigo
Remove user_required = True from RedisDsn, neither user nor countersign are required, #1275 by @samuelcolvin
Remove extra allOf from schema for fields with Union and custom Field, #1209 by @mostaphaRoudsari
Updates OpenAPI schema generation to output all enums as separate models. Instead of inlining the enum values in the model schema, models at present use a $ref property to point to the enum definition, #1173 past @calvinwyoung

v1.v.1 (2020-04-23)

Signature generation with extra: let never uses a field name, #1418 by @prettywood
Avoid mutating Field default value, #1412 by @prettywood

v1.5 (2020-04-eighteen)

Brand includes/excludes arguments for .dict(), ._iter(), ..., immutable, #1404 by @AlexECX
E'er use a field's real name with includes/excludes in model._iter(), regardless of by_alias, #1397 by @AlexECX
Update constr regex instance to include start and end lines, #1396 past @lmcnearney
Confirm that shallow model.copy() does make a shallow copy of attributes, #1383 by @samuelcolvin
Renaming model_name argument of principal.create_model() to __model_name to allow using model_name as a field name, #1367 past @kittipatv
Supervene upon raising of exception to silent passing for non-Var attributes in mypy plugin, #1345 past @b0g3r
Remove typing_extensions dependency for python iii.eight, #1342 by @prettywood
Make SecretStr and SecretBytes initialization idempotent, #1330 by @atheuz
certificate making secret types dumpable using the json method, #1328 by @atheuz
Movement all testing and build to github deportment, add windows and macos binaries, thank you lot @StephenBrown2 for much help, #1326 by @samuelcolvin
gear up card number length check in PaymentCardNumber, PaymentCardBrand at present inherits from str, #1317 by @samuelcolvin
Have BaseModel inherit from Representation to brand mypy happy when overriding __str__, #1310 by @FuegoFro
Permit None as input to all optional list fields, #1307 past @prettywood
Add datetime field to default_factory example, #1301 past @StephenBrown2
Let subclasses of known types to be encoded with superclass encoder, #1291 past @StephenBrown2
Exclude exported fields from all elements of a list/tuple of submodels/dicts with '__all__', #1286 by @masalim2
Add together pydantic.colour.Color objects equally available input for Colour fields, #1258 by @leosussan
In examples, type nullable fields as Optional, so that these are valid mypy annotations, #1248 by @kokes
Make pattern_validator() accept pre-compiled Pattern objects. Fix str_validator() return type to str, #1237 by @adamgreg
Document how to manage Generics and inheritance, #1229 by @esadruhn
update_forward_refs() method of BaseModel now copies __dict__ of grade module instead of modyfying it, #1228 past @paul-ilyin
Support instance methods and class methods with @validate_arguments, #1222 by @samuelcolvin
Add default_factory argument to Field to create a dynamic default value by passing a naught-argument callable, #1210 by @prettywood
add support for NewType of List, Optional, etc, #1207 by @Kazy
fix mypy signature for root_validator, #1192 past @samuelcolvin
Fixed parsing of nested 'custom root blazon' models, #1190 past @Shados
Add together validate_arguments function decorator which checks the arguments to a function matches type annotations, #1179 by @samuelcolvin
Add together __signature__ to models, #1034 by @Bobronium
Refactor ._iter() method, 10x speed boost for dict(model), #1017 by @Bobronium

v1.4 (2020-01-24)

Breaking Alter: alias precedence logic changed so aliases on a field always take priority over an alias from alias_generator to avoid buggy/unexpected behaviour, see here for details, #1178 by @samuelcolvin
Add support for unicode and punycode in TLDs, #1182 by @jamescurtin
Fix cls argument in validators during assignment, #1172 past @samuelcolvin
completing Luhn algorithm for PaymentCardNumber, #1166 by @cuencandres
add support for generics that implement __get_validators__ like a custom data type, #1159 past @tiangolo
add support for space generators with Iterable, #1152 by @tiangolo
fix url_regex to accept schemas with +, - and . afterwards the first grapheme, #1142 by @samuelcolvin
move version_info() to version.py, suggest its utilize in issues, #1138 past @samuelcolvin
Improve pydantic import time by roughly 50% past deferring some module loading and regex compilation, #1127 by @samuelcolvin
Prepare EmailStr and NameEmail to have instances of themselves in cython, #1126 by @koxudaxi
Laissez passer model class to the Config.schema_extra callable, #1125 by @therefromhere
Fix regex for username and password in URLs, #1115 by @samuelcolvin
Add support for nested generic models, #1104 by @dmontagu
add __all__ to __init__.py to prevent "implicit reexport" errors from mypy, #1072 by @samuelcolvin
Add back up for using "dotenv" files with BaseSettings, #1011 by @acnebs

v1.3 (2019-12-21)

Change schema and schema_model to handle dataclasses past using their __pydantic_model__ characteristic, #792 past @aviramha
Added choice for root_validator to be skipped if values validation fails using keyword skip_on_failure=True, #1049 past @aviramha
Allow Config.schema_extra to be a callable so that the generated schema tin can be post-processed, #1054 by @selimb
Update mypy to version 0.750, #1057 past @dmontagu
Trick Cython into allowing str subclassing, #1061 by @skewty
Forbid blazon attributes being added to schema unless the attribute __schema_attributes__ is True, #1064 past @samuelcolvin
Modify BaseModel.parse_file to apply Config.json_loads, #1067 by @kierandarcy
Fix for optional Json fields, #1073 by @volker48
Change the default number of threads used when compiling with cython to i, let override via the CYTHON_NTHREADS environment variable, #1074 past @samuelcolvin
Run FastAPI tests during Pydantic'south CI tests, #1075 by @tiangolo
My mypy strictness constraints, and associated tweaks to type annotations, #1077 by @samuelcolvin
Add __eq__ to SecretStr and SecretBytes to allow "value equals", #1079 by @sbv-trueenergy
Fix schema generation for nested None case, #1088 by @lutostag
Consistent checks for sequence like objects, #1090 by @samuelcolvin
Fix Config inheritance on BaseSettings when used with env_prefix, #1091 past @samuelcolvin
Fix for __modify_schema__ when it conflicted with field_class_to_schema*, #1102 by @samuelcolvin
docs: Fix explanation of case sensitive surroundings variable names when populating BaseSettings subclass attributes, #1105 by @tribals
Rename django-residuum-framework benchmark in documentation, #1119 by @frankie567

v1.2 (2019-11-28)

Possible Breaking Change: Add support for required Optional with name: Optional[AnyType] = Field(...) and refactor ModelField creation to preserve required parameter value, #1031 by @tiangolo; run across here for details
Add benchmarks for cattrs, #513 by @sebastianmika
Add exclude_none option to dict() and friends, #587 past @niknetniko
Add benchmarks for valideer, #670 by @gsakkis
Add parse_obj_as and parse_file_as functions for ad-hoc parsing of data into arbitrary pydantic-compatible types, #934 past @dmontagu
Add together allow_reuse statement to validators, thus allowing validator reuse, #940 past @dmontagu
Add together support for mapping types for custom root models, #958 by @dmontagu
Mypy plugin back up for dataclasses, #966 by @koxudaxi
Add together support for dataclasses default factory, #968 by @ahirner
Add a ByteSize type for converting byte string (1GB) to apparently bytes, #977 past @dgasmith
Set mypy complaint near @root_validator(pre=True), #984 by @samuelcolvin
Add manylinux binaries for python iii.8 to pypi, besides support manylinux2010, #994 by @samuelcolvin
Adds ByteSize conversion to another unit, #995 past @dgasmith
Prepare __str__ and __repr__ inheritance for models, #1022 by @samuelcolvin
add testimonials section to docs, #1025 by @sullivancolin
Add support for typing.Literal for Python 3.8, #1026 past @dmontagu

v1.1.1 (2019-eleven-20)

Fix bug where use of complex fields on sub-models could cause fields to exist incorrectly configured, #1015 past @samuelcolvin

v1.i (2019-xi-07)

Add a mypy plugin for type checking BaseModel.__init__ and more, #722 by @dmontagu
Alter return type typehint for GenericModel.__class_getitem__ to forbid PyCharm warnings, #936 by @dmontagu
Prepare usage of Any to allow None, also support TypeVar thus allowing employ of un-parameterised collection types due east.g. Dict and List, #962 by @samuelcolvin
Ready FieldInfo on subfields to set schema generation for complex nested types, #965 by @samuelcolvin

v1.0 (2019-10-23)

Breaking Change: deprecate the Model.fields holding, utilize Model.__fields__ instead, #883 past @samuelcolvin
Breaking Change: Change the precedence of aliases so child model aliases override parent aliases, including using alias_generator, #904 by @samuelcolvin
Breaking modify: Rename skip_defaults to exclude_unset, and add ability to exclude actual defaults, #915 by @dmontagu
Add **kwargs to pydantic.principal.ModelMetaclass.__new__ and then __init_subclass__ can take custom parameters on extended BaseModel classes, #867 by @retnikt
Fix field of a blazon that has a default value, #880 past @koxudaxi
Utilize FutureWarning instead of DeprecationWarning when allonym instead of env is used for settings models, #881 past @samuelcolvin
Fix effect with BaseSettings inheritance and alias getting fix to None, #882 past @samuelcolvin
Modify __repr__ and __str__ methods to exist consistent beyond all public classes, add together __pretty__ to support python-devtools, #884 by @samuelcolvin
deprecation warning for case_insensitive on BaseSettings config, #885 by @samuelcolvin
For BaseSettings merge environment variables and in-lawmaking values recursively, as long as they create a valid object when merged together, to allow splitting init arguments, #888 by @idmitrievsky
alter hugger-mugger types example, #890 by @ashears
Modify the signature of Model.construct() to be more user-friendly, document construct() usage, #898 past @samuelcolvin
Add example for the construct() method, #907 by @ashears
Ameliorate apply of Field constraints on complex types, raise an fault if constraints are not enforceable, also support tuples with an ellipsis Tuple[X, ...], Sequence and FrozenSet in schema, #909 by @samuelcolvin
update docs for bool missing valid value, #911 by @trim21
Better str/repr logic for ModelField, #912 by @samuelcolvin
Fix ConstrainedList, update schema generation to reflect min_items and max_items Field() arguments, #917 by @samuelcolvin
Allow abstracts sets (eg. dict keys) in the include and exclude arguments of dict(), #921 by @samuelcolvin
Ready JSON serialization errors on ValidationError.json() past using pydantic_encoder, #922 past @samuelcolvin
Clarify usage of remove_untouched, improve error message for types with no validators, #926 by @retnikt

v1.0b2 (2019-10-07)

Mark StrictBool typecheck every bit bool to let for default values without mypy errors, #690 past @dmontagu
Transfer the documentation build from sphinx to mkdocs, re-write much of the documentation, #856 by @samuelcolvin
Add back up for custom naming schemes for GenericModel subclasses, #859 by @dmontagu
Add if TYPE_CHECKING: to the excluded lines for examination coverage, #874 by @dmontagu
Rename allow_population_by_alias to allow_population_by_field_name, remove unnecessary warning virtually it, #875 by @samuelcolvin

v1.0b1 (2019-10-01)

Breaking Change: rename Schema to Field, make it a role to placate mypy, #577 by @samuelcolvin
Breaking Change: modify parsing behavior for bool, #617 by @dmontagu
Breaking Change: get_validators is no longer recognised, utilise __get_validators__. Config.ignore_extra and Config.allow_extra are no longer recognised, utilise Config.extra, #720 past @samuelcolvin
Breaking Change: change default config settings for BaseSettings; case_insensitive renamed to case_sensitive, default inverse to case_sensitive = False, env_prefix default inverse to '' - e.thousand. no prefix, #721 by @dmontagu
Breaking alter: Implement root_validator and rename root errors from __obj__ to __root__, #729 by @samuelcolvin
Breaking Change: alter the behaviour of dict(model) so that sub-models are nolonger converted to dictionaries, #733 by @samuelcolvin
Breaking alter: Added initvars support to post_init_post_parse, #748 by @Raphael-C-Almeida
Breaking Change: Make BaseModel.json() only serialize the __root__ fundamental for models with custom root, #752 by @dmontagu
Breaking Change: complete rewrite of URL parsing logic, #755 by @samuelcolvin
Breaking Alter: preserve superclass annotations for field-determination when not provided in bracket, #757 by @dmontagu
Breaking Change: BaseSettings now uses the special env settings to define which environment variables to read, not aliases, #847 by @samuelcolvin
add together back up for assert statements inside validators, #653 past @abdusco
Update documentation to specify the use of pydantic.dataclasses.dataclass and subclassing pydantic.BaseModel, #710 past @maddosaurus
Allow custom JSON decoding and encoding via json_loads and json_dumps Config properties, #714 by @samuelcolvin
make all annotated fields occur in the gild declared, #715 by @dmontagu
use pytest to exam mypy integration, #735 by @dmontagu
add __repr__ method to ErrorWrapper, #738 by @samuelcolvin
Added support for FrozenSet members in dataclasses, and a better error when attempting to utilise types from the typing module that are not supported by Pydantic, #745 by @djpetti
add documentation for Pycharm Plugin, #750 by @koxudaxi
set cleaved examples in the docs, #753 by @dmontagu
moving typing related objects into pydantic.typing, #761 past @samuelcolvin
Minor performance improvements to ErrorWrapper, ValidationError and datetime parsing, #763 by @samuelcolvin
Improvements to datetime/date/fourth dimension/timedelta types: more descriptive errors, change errors to value_error not type_error, back up bytes, #766 by @samuelcolvin
prepare fault messages for Literal types with multiple immune values, #770 by @dmontagu
Improved auto-generated title field in JSON schema past converting underscore to space, #772 by @skewty
back up mypy --no-implicit-reexport for dataclasses, besides respect --no-implicit-reexport in pydantic itself, #783 by @samuelcolvin
add the PaymentCardNumber type, #790 past @matin
Fix const validations for lists, #794 past @hmvp
Set additionalProperties to false in schema for models with extra fields disallowed, #796 by @Code0x58
EmailStr validation method now returns local part case-sensitive per RFC 5321, #798 past @henriklindgren
Added ability to validate strictness to ConstrainedFloat, ConstrainedInt and ConstrainedStr and added StrictFloat and StrictInt classes, #799 by @DerRidda
Meliorate handling of None and Optional, supersede whole with each_item (inverse meaning, default False) on validators, #803 past @samuelcolvin
add support for Type[T] blazon hints, #807 by @timonbimon
Performance improvements from removing change_exceptions, change how pydantic fault are constructed, #819 by @samuelcolvin
Fix the error message arising when a BaseModel-blazon model field causes a ValidationError during parsing, #820 by @dmontagu
allow getter_dict on Config, modify GetterDict to be more like a Mapping object and thus easier to work with, #821 past @samuelcolvin
Only bank check TypeVar param on base GenericModel form, #842 by @zpencerq
rename Model._schema_cache -> Model.__schema_cache__, Model._json_encoder -> Model.__json_encoder__, Model._custom_root_type -> Model.__custom_root_type__, #851 past @samuelcolvin

v0.32.2 (2019-08-17)

(Docs are available here)

set __post_init__ usage with dataclass inheritance, fix #739 by @samuelcolvin
fix required fields validation on GenericModels classes, #742 by @amitbl
fix defining custom Schema on GenericModel fields, #754 by @amitbl

v0.32.1 (2019-08-08)

do non validate actress fields when validate_assignment is on, #724 by @YaraslauZhylko

v0.32 (2019-08-06)

add together model proper noun to ValidationError error message, #676 by @dmontagu
breaking alter: remove __getattr__ and rename __values__ to __dict__ on BaseModel, deprecation warning on use __values__ attr, attributes admission speed increased upwards to fourteen times, #712 past @Bobronium
support ForwardRef (without self-referencing annotations) in Python 3.6, #706 past @koxudaxi
implement schema_extra in Config sub-class, #663 by @tiangolo

v0.31.1 (2019-07-31)

fix json generation for EnumError, #697 by @dmontagu
update numerous dependencies

v0.31 (2019-07-24)

better support for floating betoken multiple_of values, #652 by @justindujardin
fix schema generation for NewType and Literal, #649 by @dmontagu
fix alias_generator and field config conflict, #645 by @gmetzker and #658 by @Bobronium
more detailed bulletin for EnumError, #673 by @dmontagu
add avant-garde exclude back up for dict, json and copy, #648 by @Bobronium
fix bug in GenericModel for models with concrete parameterized fields, #672 by @dmontagu
add documentation for Literal type, #651 by @dmontagu
add Config.keep_untouched for custom descriptors support, #679 by @Bobronium
apply inspect.cleandoc internally to go model clarification, #657 by @tiangolo
add together Colour to schema generation, past @euri10
add documentation for Literal type, #651 past @dmontagu

v0.30.1 (2019-07-15)

set so nested classes which inherit and modify __init__ are correctly processed while still allowing self as a parameter, #644 by @lnaden and @dgasmith

v0.xxx (2019-07-07)

enforce unmarried quotes in code, #612 by @samuelcolvin
fix infinite recursion with dataclass inheritance and __post_init__, #606 by @Hanaasagi
fix default values for GenericModel, #610 by @dmontagu
analyze that self-referencing models crave python 3.7+, #616 by @vlcinsky
prepare truncate for types, #611 past @dmontagu
add alias_generator support, #622 by @Bobronium
set up unparameterized generic type schema generation, #625 by @dmontagu
fix schema generation with multiple/circular references to the same model, #621 by @tiangolo and @wongpat
support custom root types, #628 past @koxudaxi
support self as a field proper noun in parse_obj, #632 by @samuelcolvin

v0.29 (2019-06-19)

support dataclasses.InitVar, #592 past @pfrederiks
Updated documentation to elucidate the usage of Union when defining multiple types under an attribute's annotation and showcase how the type-order tin affect marshalling of provided values, #594 by @somada141
add together conlist type, #583 by @hmvp
add support for generics, #595 by @dmontagu

v0.28 (2019-06-06)

fix support for JSON Schema generation when using models with round references in Python three.7, #572 past @tiangolo
support __post_init_post_parse__ on dataclasses, #567 past @sevaho
allow dumping dataclasses to JSON, #575 past @samuelcolvin and @DanielOberg
ORM mode, #562 by @samuelcolvin
fix pydantic.compiled on ipython, #573 by @dmontagu and @samuelcolvin
add StrictBool blazon, #579 past @cazgp

v0.27 (2019-05-thirty)

breaking change _pydantic_post_init to execute dataclass' original __post_init__ earlier validation, #560 by @HeavenVolkoff
fix handling of generic types without specified parameters, #550 by @dmontagu
breaking change (possibly): this is the start release compiled with cython, encounter the docs and delight submit an issue if you lot run into bug

v0.27.0a1 (2019-05-26)

fix JSON Schema for list, tuple, and set up, #540 past @tiangolo
compiling with cython, manylinux binaries, some other performance improvements, #548 past @samuelcolvin

v0.26 (2019-05-22)

fix to schema generation for IPvAnyAddress, IPvAnyInterface, IPvAnyNetwork #498 by @pilosus
ready variable length tuples support, #495 by @pilosus
prepare return type hint for create_model, #526 by @dmontagu
Breaking Change: fix .dict(skip_keys=Truthful) skipping values set via alias (this involves changing validate_model() to e'er returns Tuple[Dict[str, Any], Set up[str], Optional[ValidationError]]), #517 past @sommd
prepare to schema generation for IPv4Address, IPv6Address, IPv4Interface, IPv6Interface, IPv4Network, IPv6Network #532 by @euri10
add Colour type, #504 by @pilosus and @samuelcolvin

v0.25 (2019-05-05)

Improve documentation on cocky-referencing models and annotations, #487 by @theenglishway
fix .dict() with actress keys, #490 past @JaewonKim
support const keyword in Schema, #434 by @Sean1708

v0.24 (2019-04-23)

fix treatment ForwardRef in sub-types, like Wedlock, #464 by @tiangolo
fix clandestine serialization, #465 by @atheuz
Support custom validators for dataclasses, #454 by @primal100
fix parse_obj to cope with dict-like objects, #472 past @samuelcolvin
prepare to schema generation in nested dataclass-based models, #474 by @NoAnyLove
fix json for Path, FilePath, and DirectoryPath objects, #473 by @mikegoodspeed

v0.23 (2019-04-04)

improve documentation for contributing section, #441 past @pilosus
improve README.rst to include essential data nigh the package, #446 by @pilosus
IntEnum support, #444 by @potykion
gear up PyObject callable value, #409 past @pilosus
ready black deprecation warnings after update, #451 by @pilosus
set up ForwardRef collection bug, #450 by @tigerwings
Back up specialized ClassVars, #455 by @tyrylu
set JSON serialization for ipaddress types, #333 by @pilosus
add together SecretStr and SecretBytes types, #452 past @atheuz

v0.22 (2019-03-29)

add IPv{4,6,Whatsoever}Network and IPv{4,6,Any}Interface types from ipaddress stdlib, #333 by @pilosus
add docs for datetime types, #386 past @pilosus
ready to schema generation in dataclass-based models, #408 by @pilosus
prepare path in nested models, #437 by @kataev
add Sequence back up, #304 by @pilosus

v0.21.0 (2019-03-15)

fix typo in NoneIsNotAllowedError message, #414 by @YaraslauZhylko
add IPvAnyAddress, IPv4Address and IPv6Address types, #333 by @pilosus

v0.20.1 (2019-02-26)

fix type hints of parse_obj and similar methods, #405 past @erosennin
fix submodel validation, #403 by @samuelcolvin
right type hints for ValidationError.json, #406 by @layday

v0.20.0 (2019-02-eighteen)

set tests for python three.8, #396 by @samuelcolvin
Adds fields to the dir method for autocompletion in interactive sessions, #398 by @dgasmith
support ForwardRef (and therefore from __future__ import annotations) with dataclasses, #397 by @samuelcolvin

v0.20.0a1 (2019-02-xiii)

breaking modify (perchance): more sophisticated argument parsing for validators, any subset of values, config and field is at present permitted, eg. (cls, value, field), however the variadic key word argument ("**kwargs") must exist called kwargs, #388 by @samuelcolvin
breaking change: Adds skip_defaults argument to BaseModel.dict() to allow skipping of fields that were non explicitly set, signature of Model.construct() changed, #389 by @dgasmith
add py.typed marking file for PEP-561 back up, #391 by @je-l
Gear up extra behaviour for multiple inheritance/mix-ins, #394 by @YaraslauZhylko

v0.19.0 (2019-02-04)

Back up Callable type hint, fix #279 by @proofit404
Gear up schema for fields with validator decorator, fix #375 by @tiangolo
Add multiple_of constraint to ConstrainedDecimal, ConstrainedFloat, ConstrainedInt and their related types condecimal, confloat, and conint #371, thank you @StephenBrown2
Deprecated ignore_extra and allow_extra Config fields in favor of extra, #352 by @liiight
Add blazon annotations to all functions, exam fully with mypy, #373 by @samuelcolvin
fix for 'missing' fault with validate_all or validate_always, #381 past @samuelcolvin
Alter the 2d/millisecond watershed for date/datetime parsing to 2e10, #385 past @samuelcolvin

v0.18.2 (2019-01-22)

Fix to schema generation with Optional fields, fix #361 by @samuelcolvin

v0.18.one (2019-01-17)

add ConstrainedBytes and conbytes types, #315 @Gr1N
adding MANIFEST.in to include license in packet .tar.gz, #358 by @samuelcolvin

v0.18.0 (2019-01-13)

breaking change: don't telephone call validators on keys of dictionaries, #254 past @samuelcolvin
Fix validators with always=Truthful when the default is None or the type is optional, besides prevent whole validators being called for sub-fields, set #132 past @samuelcolvin
improve documentation for settings priority and allow it to be easily inverse, #343 by @samuelcolvin
fix ignore_extra=False and allow_population_by_alias=True, set #257 by @samuelcolvin
breaking change: Set BaseConfig attributes min_anystr_length and max_anystr_length to None past default, ready #349 in #350 by @tiangolo
add support for postponed annotations, #348 by @samuelcolvin

v0.17.0 (2018-12-27)

fix schema for timedelta as number, #325 by @tiangolo
foreclose validators being called repeatedly subsequently inheritance, #327 past @samuelcolvin
preclude indistinguishable validator check in ipython, set #312 by @samuelcolvin
add "Using Pydantic" section to docs, #323 past @tiangolo & #326 by @samuelcolvin
fix schema generation for fields annotated equally : dict, : listing, : tuple and : set, #330 & #335 by @nkonin
add together support for constrained strings every bit dict keys in schema, #332 by @tiangolo
support for passing Config class in dataclasses decorator, #276 by @jarekkar (breaking change: this supersedes the validate_assignment argument with config)
support for nested dataclasses, #334 by @samuelcolvin
better errors when getting an ImportError with PyObject, #309 past @samuelcolvin
rename get_validators to __get_validators__, deprecation warning on use of one-time proper noun, #338 by @samuelcolvin
back up ClassVar by excluding such attributes from fields, #184 by @samuelcolvin

v0.16.1 (2018-12-ten)

fix create_model to correctly utilise the passed __config__, #320 by @hugoduncan

v0.16.0 (2018-12-03)

breaking change: refactor schema generation to be compatible with JSON Schema and OpenAPI specs, #308 past @tiangolo
add schema to schema module to generate top-level schemas from base models, #308 by @tiangolo
add boosted fields to Schema form to declare validation for str and numeric values, #311 by @tiangolo
rename _schema to schema on fields, #318 by @samuelcolvin
add together case_insensitive option to BaseSettings Config, #277 by @jasonkuhrt

v0.15.0 (2018-11-xviii)

move codebase to apply black, #287 by @samuelcolvin
prepare alias utilize in settings, #286 by @jasonkuhrt and @samuelcolvin
fix datetime parsing in parse_date, #298 past @samuelcolvin
let dataclass inheritance, set up #293 by @samuelcolvin
prepare PyObject = None, fix #305 by @samuelcolvin
allow Pattern blazon, fix #303 by @samuelcolvin

v0.14.0 (2018-10-02)

dataclasses decorator, #269 by @Gaunt and @samuelcolvin

v0.13.1 (2018-09-21)

prepare issue where int_validator doesn't bandage a bool to an int #264 past @nphyatt
add deep copy support for BaseModel.copy() #249, @gangefors

v0.13.0 (2018-08-25)

raise an exception if a field's proper noun shadows an existing BaseModel attribute #242
add UrlStr and urlstr types #236
timedelta json encoding ISO8601 and total seconds, custom json encoders #247, by @cfkanesan and @samuelcolvin
permit timedelta objects as values for properties of blazon timedelta (matches datetime etc. beliefs) #247

v0.12.ane (2018-07-31)

fix schema generation for fields defined using typing.Whatever #237

v0.12.0 (2018-07-31)

add by_alias argument in .dict() and .json() model methods #205
add together Json type support #214
back up tuples #227
major improvements and changes to schema #213

v0.11.2 (2018-07-05)

add NewType support #115
fix listing, set & tuple validation #225
split out validate_model method, allow errors to be returned along with valid values #221

v0.xi.1 (2018-07-02)

back up Python iii.7 #216, thanks @layday
Allow arbitrary types in model #209, thanks @oldPadavan

v0.xi.0 (2018-06-28)

make list, tuple and set types stricter #86
breaking change: remove msgpack parsing #201
add together FilePath and DirectoryPath types #ten
model schema generation #190
JSON serialisation of models and schemas #133

v0.10.0 (2018-06-11)

add Config.allow_population_by_alias #160, thank you @bendemaree
breaking change: new errors format #179, thanks @Gr1N
breaking change: removed Config.min_number_size and Config.max_number_size #183, thanks @Gr1N
breaking change: correct behaviour of lt and gt arguments to conint etc. #188 for the old behaviour use le and ge #194, thank you @jaheba
added error context and ability to redefine mistake bulletin templates using Config.error_msg_templates #183, thanks @Gr1N
set typo in validator exception #150
copy defaults to model values, and so unlike models don't share objects #154

v0.ix.1 (2018-05-10)

allow custom get_field_config on config classes #159
add together UUID1, UUID3, UUID4 and UUID5 types #167, thank you @Gr1N
modify some inconsistent docstrings and annotations #173, thank you @YannLuo
set blazon annotations for exotic types #171, cheers @Gr1N
re-apply type validators in exotic types #171
scheduled monthly requirements updates #168
add together Decimal, ConstrainedDecimal and condecimal types #170, thanks @Gr1N

v0.9.0 (2018-04-28)

tweak email-validator import error bulletin #145
fix parse mistake of parse_date() and parse_datetime() when input is 0 #144, thanks @YannLuo
add Config.anystr_strip_whitespace and strip_whitespace kwarg to constr, by default values is False #163, thanks @Gr1N
add ConstrainedFloat, confloat, PositiveFloat and NegativeFloat types #166, thank you @Gr1N

v0.8.0 (2018-03-25)

fix type notation for inherit_config #139
breaking modify: bank check for invalid field names in validators #140
validate attributes of parent models #141
breaking change: email validation now uses email-validator #142

v0.7.1 (2018-02-07)

fix bug with create_model modifying the base form

v0.7.0 (2018-02-06)

added compatibility with abstruse base classes (ABCs) #123
add create_model method #113 #125
breaking change: rename .config to .__config__ on a model
breaking change: remove deprecated .values() on a model, use .dict() instead
remove use of OrderedDict and use unproblematic dict #126
add Config.use_enum_values #127
add together wildcard validators of the form @validate('*') #128

v0.six.4 (2018-02-01)

allow python date and times objects #122

v0.6.3 (2017-xi-26)

fix direct install without README.rst present

v0.half-dozen.ii (2017-11-13)

errors for invalid validator use
safer check for complex models in Settings

v0.6.one (2017-11-08)

foreclose indistinguishable validators, #101
add always kwarg to validators, #102

v0.6.0 (2017-11-07)

consignment validation #94, thanks petroswork!
JSON in surround variables for complex types, #96
add validator decorators for complex validation, #97
depreciate values(...) and replace with .dict(...), #99

v0.five.0 (2017-10-23)

add UUID validation #89
remove index and rails from error object (json) if they're null #90
improve the error text when a listing is provided rather than a dict #ninety
add together benchmarks table to docs #91

v0.4.0 (2017-07-08)

bear witness length in string validation error
fix aliases in config during inheritance #55
simplify error display
use unicode ellipsis in truncate
add parse_obj, parse_raw and parse_file helper functions #58
switch annotation merely fields to come first in fields list not last

v0.3.0 (2017-06-21)

immutable models via config.allow_mutation = False, associated cleanup and operation improvement #44
immutable helper methods construct() and copy() #53
allow pickling of models #53
setattr is removed every bit __setattr__ is now intelligent #44
raise_exception removed, Models at present always raise exceptions #44
instance method validators removed
django-restful-framework benchmarks added #47
fix inheritance bug #49
brand str blazon stricter and then listing, dict etc are not coerced to strings. #52
add together StrictStr which only always strings every bit input #52

v0.ii.one (2017-06-07)

pypi and travis together messed up the deploy of v0.two this should prepare it

v0.two.0 (2017-06-07)

breaking change: values() on a model is now a method not a property, takes include and exclude arguments
allow annotation only fields to support mypy
add pretty to_string(pretty=True) method for models

v0.i.0 (2017-06-03)

add docs
add history

clarkthled1945.blogspot.com

Source: https://pypi.org/project/pydantic/