base_schema¶

Schema¶

class wysdom.Schema¶

Bases: abc.ABC

Abstract base class for JSON schemas. Objects of type Schema can be used to generate jsonschema-compatible dictionaries, and to validate potential input data against those schemas.

Objects of type Schema are also callable, and when called will create DOM objects or primitive Python object containing the data that is supplied to them.

is_valid(value: Any) → bool¶

Determine whether a given object conforms to this schema.

Parameters:	value – An object to test for validity against this schema
Returns:	True if the object is valid, otherwise False

jsonschema_definition¶

The underlying jsonschema-compatible schema definition for this schema.

Returns:	A jsonschema-compatible dictionary.

jsonschema_full_schema¶

The jsonschema definition to use when using this schema as a standalone schema.

Returns:	A jsonschema-compatible dictionary.

jsonschema_ref_schema¶

The jsonschema definition to use when referring to this schema in another schema. If schema_ref_name is defined, this will be a reference using the “$ref” keyword. If schema_ref_name is None, the raw definition of the schema will be used.

Returns:	A jsonschema-compatible dictionary.

referenced_schemas¶

A dict of named schemas (i.e. schemas with a defined schema_ref_name) that are referenced in this schema, including itself if applicable.

Returns:	A dict of Schema objects indexed by their schema_ref_name.

schema_ref_name¶

A unique reference name to use when this schema is referred to by other schemas. If this returns a string, references to this schema will use the $ref keyword without replicating the full schema. If this property returns None, the full contents of the schema will be used.

Returns:	A string with a unique reference name if defined, else None.

validate(value: Any) → None¶

Determine whether a given object conforms to this schema, and throw an error if not.

Parameters:	value – An object to test for validity against this schema

SchemaAnything¶

class wysdom.SchemaAnything¶

Bases: wysdom.base_schema.Schema.Schema

A schema where any valid JSON will be accepted.

jsonschema_definition¶

The underlying jsonschema-compatible schema definition for this schema.

Returns:	A jsonschema-compatible dictionary.

SchemaConst¶

class wysdom.SchemaConst(value: str)¶

Bases: wysdom.base_schema.Schema.Schema

A schema requiring a string constant.

jsonschema_definition¶

The underlying jsonschema-compatible schema definition for this schema.

Returns:	A jsonschema-compatible dictionary.

value = None¶

SchemaNone¶

class wysdom.SchemaNone¶

Bases: wysdom.base_schema.SchemaType.SchemaType

A schema requiring a null value.

type_name = 'null'¶

SchemaPrimitive¶

class wysdom.SchemaPrimitive(python_type: Optional[Type[CT_co]] = None)¶

Bases: wysdom.base_schema.SchemaType.SchemaType

A schema requiring a primitive variable type

Parameters:	python_type – The primitive Python type expected by this schema

JSON_TYPES = {<class 'str'>: 'string', <class 'bool'>: 'boolean', <class 'int'>: 'integer', <class 'float'>: 'number'}¶

python_type = None¶

type_name¶

Returns:	Value for the JSON schema “type” keyword

SchemaType¶

class wysdom.SchemaType¶

Bases: wysdom.base_schema.Schema.Schema, abc.ABC

Abstract base class for any schema with the “type” keyword

jsonschema_definition¶

The underlying jsonschema-compatible schema definition for this schema.

Returns:	A jsonschema-compatible dictionary.

type_name¶

Returns:	Value for the JSON schema “type” keyword