spaCy/spacy/schemas.py

333 lines
13 KiB
Python

from typing import Dict, List, Union, Optional, Sequence, Any, Callable, Type
from typing import Iterable, TypeVar, TYPE_CHECKING
from enum import Enum
from pydantic import BaseModel, Field, ValidationError, validator
from pydantic import StrictStr, StrictInt, StrictFloat, StrictBool
from pydantic import root_validator
from collections import defaultdict
from thinc.api import Optimizer
from .attrs import NAMES
if TYPE_CHECKING:
# This lets us add type hints for mypy etc. without causing circular imports
from .language import Language # noqa: F401
from .gold import Example # noqa: F401
ItemT = TypeVar("ItemT")
Batcher = Callable[[Iterable[ItemT]], Iterable[List[ItemT]]]
Reader = Callable[["Language", str], Iterable["Example"]]
def validate(schema: Type[BaseModel], obj: Dict[str, Any]) -> List[str]:
"""Validate data against a given pydantic schema.
obj (Dict[str, Any]): JSON-serializable data to validate.
schema (pydantic.BaseModel): The schema to validate against.
RETURNS (List[str]): A list of error messages, if available.
"""
try:
schema(**obj)
return []
except ValidationError as e:
errors = e.errors()
data = defaultdict(list)
for error in errors:
err_loc = " -> ".join([str(p) for p in error.get("loc", [])])
data[err_loc].append(error.get("msg"))
return [f"[{loc}] {', '.join(msg)}" for loc, msg in data.items()]
# Matcher token patterns
def validate_token_pattern(obj: list) -> List[str]:
# Try to convert non-string keys (e.g. {ORTH: "foo"} -> {"ORTH": "foo"})
get_key = lambda k: NAMES[k] if isinstance(k, int) and k < len(NAMES) else k
if isinstance(obj, list):
converted = []
for pattern in obj:
if isinstance(pattern, dict):
pattern = {get_key(k): v for k, v in pattern.items()}
converted.append(pattern)
obj = converted
return validate(TokenPatternSchema, {"pattern": obj})
class TokenPatternString(BaseModel):
REGEX: Optional[StrictStr]
IN: Optional[List[StrictStr]]
NOT_IN: Optional[List[StrictStr]]
class Config:
extra = "forbid"
@validator("*", pre=True, each_item=True)
def raise_for_none(cls, v):
if v is None:
raise ValueError("None / null is not allowed")
return v
class TokenPatternNumber(BaseModel):
REGEX: Optional[StrictStr] = None
IN: Optional[List[StrictInt]] = None
NOT_IN: Optional[List[StrictInt]] = None
EQ: Union[StrictInt, StrictFloat] = Field(None, alias="==")
NEQ: Union[StrictInt, StrictFloat] = Field(None, alias="!=")
GEQ: Union[StrictInt, StrictFloat] = Field(None, alias=">=")
LEQ: Union[StrictInt, StrictFloat] = Field(None, alias="<=")
GT: Union[StrictInt, StrictFloat] = Field(None, alias=">")
LT: Union[StrictInt, StrictFloat] = Field(None, alias="<")
class Config:
extra = "forbid"
@validator("*", pre=True, each_item=True)
def raise_for_none(cls, v):
if v is None:
raise ValueError("None / null is not allowed")
return v
class TokenPatternOperator(str, Enum):
plus: StrictStr = "+"
start: StrictStr = "*"
question: StrictStr = "?"
exclamation: StrictStr = "!"
StringValue = Union[TokenPatternString, StrictStr]
NumberValue = Union[TokenPatternNumber, StrictInt, StrictFloat]
UnderscoreValue = Union[
TokenPatternString, TokenPatternNumber, str, int, float, list, bool,
]
class TokenPattern(BaseModel):
orth: Optional[StringValue] = None
text: Optional[StringValue] = None
lower: Optional[StringValue] = None
pos: Optional[StringValue] = None
tag: Optional[StringValue] = None
dep: Optional[StringValue] = None
lemma: Optional[StringValue] = None
shape: Optional[StringValue] = None
ent_type: Optional[StringValue] = None
norm: Optional[StringValue] = None
length: Optional[NumberValue] = None
spacy: Optional[StrictBool] = None
is_alpha: Optional[StrictBool] = None
is_ascii: Optional[StrictBool] = None
is_digit: Optional[StrictBool] = None
is_lower: Optional[StrictBool] = None
is_upper: Optional[StrictBool] = None
is_title: Optional[StrictBool] = None
is_punct: Optional[StrictBool] = None
is_space: Optional[StrictBool] = None
is_bracket: Optional[StrictBool] = None
is_quote: Optional[StrictBool] = None
is_left_punct: Optional[StrictBool] = None
is_right_punct: Optional[StrictBool] = None
is_currency: Optional[StrictBool] = None
is_stop: Optional[StrictBool] = None
is_sent_start: Optional[StrictBool] = None
sent_start: Optional[StrictBool] = None
like_num: Optional[StrictBool] = None
like_url: Optional[StrictBool] = None
like_email: Optional[StrictBool] = None
op: Optional[TokenPatternOperator] = None
underscore: Optional[Dict[StrictStr, UnderscoreValue]] = Field(None, alias="_")
class Config:
extra = "forbid"
allow_population_by_field_name = True
alias_generator = lambda value: value.upper()
@validator("*", pre=True)
def raise_for_none(cls, v):
if v is None:
raise ValueError("None / null is not allowed")
return v
class TokenPatternSchema(BaseModel):
pattern: List[TokenPattern] = Field(..., minItems=1)
class Config:
extra = "forbid"
# Model meta
class ModelMetaSchema(BaseModel):
# fmt: off
lang: StrictStr = Field(..., title="Two-letter language code, e.g. 'en'")
name: StrictStr = Field(..., title="Model name")
version: StrictStr = Field(..., title="Model version")
spacy_version: StrictStr = Field("", title="Compatible spaCy version identifier")
parent_package: StrictStr = Field("spacy", title="Name of parent spaCy package, e.g. spacy or spacy-nightly")
pipeline: List[StrictStr] = Field([], title="Names of pipeline components")
description: StrictStr = Field("", title="Model description")
license: StrictStr = Field("", title="Model license")
author: StrictStr = Field("", title="Model author name")
email: StrictStr = Field("", title="Model author email")
url: StrictStr = Field("", title="Model author URL")
sources: Optional[Union[List[StrictStr], List[Dict[str, str]]]] = Field(None, title="Training data sources")
vectors: Dict[str, Any] = Field({}, title="Included word vectors")
labels: Dict[str, Dict[str, List[str]]] = Field({}, title="Component labels, keyed by component name")
accuracy: Dict[str, Union[float, Dict[str, float]]] = Field({}, title="Accuracy numbers")
speed: Dict[str, Union[float, int]] = Field({}, title="Speed evaluation numbers")
spacy_git_version: StrictStr = Field("", title="Commit of spaCy version used")
# fmt: on
# Config schema
# We're not setting any defaults here (which is too messy) and are making all
# fields required, so we can raise validation errors for missing values. To
# provide a default, we include a separate .cfg file with all values and
# check that against this schema in the test suite to make sure it's always
# up to date.
class ConfigSchemaTraining(BaseModel):
# fmt: off
vectors: Optional[StrictStr] = Field(..., title="Path to vectors")
train_corpus: Reader = Field(..., title="Reader for the training data")
dev_corpus: Reader = Field(..., title="Reader for the dev data")
batcher: Batcher = Field(..., title="Batcher for the training data")
dropout: StrictFloat = Field(..., title="Dropout rate")
patience: StrictInt = Field(..., title="How many steps to continue without improvement in evaluation score")
max_epochs: StrictInt = Field(..., title="Maximum number of epochs to train for")
max_steps: StrictInt = Field(..., title="Maximum number of update steps to train for")
eval_frequency: StrictInt = Field(..., title="How often to evaluate during training (steps)")
seed: Optional[StrictInt] = Field(..., title="Random seed")
accumulate_gradient: StrictInt = Field(..., title="Whether to divide the batch up into substeps")
score_weights: Dict[StrictStr, Union[StrictFloat, StrictInt]] = Field(..., title="Scores to report and their weights for selecting final model")
init_tok2vec: Optional[StrictStr] = Field(..., title="Path to pretrained tok2vec weights")
raw_text: Optional[StrictStr] = Field(default=None, title="Raw text")
optimizer: Optimizer = Field(..., title="The optimizer to use")
frozen_components: List[str] = Field(..., title="Pipeline components that shouldn't be updated during training")
# fmt: on
class Config:
extra = "forbid"
arbitrary_types_allowed = True
class ConfigSchemaNlp(BaseModel):
# fmt: off
lang: StrictStr = Field(..., title="The base language to use")
pipeline: List[StrictStr] = Field(..., title="The pipeline component names in order")
tokenizer: Callable = Field(..., title="The tokenizer to use")
load_vocab_data: StrictBool = Field(..., title="Whether to load additional vocab data from spacy-lookups-data")
before_creation: Optional[Callable[[Type["Language"]], Type["Language"]]] = Field(..., title="Optional callback to modify Language class before initialization")
after_creation: Optional[Callable[["Language"], "Language"]] = Field(..., title="Optional callback to modify nlp object after creation and before the pipeline is constructed")
after_pipeline_creation: Optional[Callable[["Language"], "Language"]] = Field(..., title="Optional callback to modify nlp object after the pipeline is constructed")
# fmt: on
class Config:
extra = "forbid"
arbitrary_types_allowed = True
class ConfigSchemaPretrain(BaseModel):
# fmt: off
max_epochs: StrictInt = Field(..., title="Maximum number of epochs to train for")
min_length: StrictInt = Field(..., title="Minimum length of examples")
max_length: StrictInt = Field(..., title="Maximum length of examples")
dropout: StrictFloat = Field(..., title="Dropout rate")
n_save_every: Optional[StrictInt] = Field(..., title="Saving frequency")
batch_size: Union[Sequence[int], int] = Field(..., title="The batch size or batch size schedule")
seed: Optional[StrictInt] = Field(..., title="Random seed")
use_pytorch_for_gpu_memory: StrictBool = Field(..., title="Allocate memory via PyTorch")
tok2vec_model: StrictStr = Field(..., title="tok2vec model in config, e.g. components.tok2vec.model")
optimizer: Optimizer = Field(..., title="The optimizer to use")
# TODO: use a more detailed schema for this?
objective: Dict[str, Any] = Field(..., title="Pretraining objective")
# fmt: on
class Config:
extra = "forbid"
arbitrary_types_allowed = True
class ConfigSchema(BaseModel):
training: ConfigSchemaTraining
nlp: ConfigSchemaNlp
pretraining: Optional[ConfigSchemaPretrain]
components: Dict[str, Dict[str, Any]]
@root_validator
def validate_config(cls, values):
"""Perform additional validation for settings with dependencies."""
pt = values.get("pretraining")
if pt and pt.objective.get("type") == "vectors" and not values["nlp"].vectors:
err = "Need nlp.vectors if pretraining.objective.type is vectors"
raise ValueError(err)
return values
class Config:
extra = "allow"
arbitrary_types_allowed = True
# Project config Schema
class ProjectConfigAsset(BaseModel):
# fmt: off
dest: StrictStr = Field(..., title="Destination of downloaded asset")
url: Optional[StrictStr] = Field(None, title="URL of asset")
checksum: str = Field(None, title="MD5 hash of file", regex=r"([a-fA-F\d]{32})")
# fmt: on
class ProjectConfigCommand(BaseModel):
# fmt: off
name: StrictStr = Field(..., title="Name of command")
help: Optional[StrictStr] = Field(None, title="Command description")
script: List[StrictStr] = Field([], title="List of CLI commands to run, in order")
deps: List[StrictStr] = Field([], title="File dependencies required by this command")
outputs: List[StrictStr] = Field([], title="Outputs produced by this command")
outputs_no_cache: List[StrictStr] = Field([], title="Outputs not tracked by DVC (DVC only)")
no_skip: bool = Field(False, title="Never skip this command, even if nothing changed")
# fmt: on
class Config:
title = "A single named command specified in a project config"
extra = "forbid"
class ProjectConfigSchema(BaseModel):
# fmt: off
variables: Dict[StrictStr, Union[str, int, float, bool]] = Field({}, title="Optional variables to substitute in commands")
assets: List[ProjectConfigAsset] = Field([], title="Data assets")
workflows: Dict[StrictStr, List[StrictStr]] = Field({}, title="Named workflows, mapped to list of project commands to run in order")
commands: List[ProjectConfigCommand] = Field([], title="Project command shortucts")
# fmt: on
class Config:
title = "Schema for project configuration file"
# Recommendations for init config workflows
class RecommendationTrfItem(BaseModel):
name: str
size_factor: int
class RecommendationTrf(BaseModel):
efficiency: RecommendationTrfItem
accuracy: RecommendationTrfItem
class RecommendationSchema(BaseModel):
word_vectors: Optional[str] = None
transformer: Optional[RecommendationTrf] = None
has_letters: bool = True