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# resolve forward references
typ = resolve_forward_ref(typ)
if not is_valid_pep484_type_hint(typ):
raise InvalidPEP484TypeHint.create_for_object_attributes(item_type, attr_name, typ)
return typ"
1049,"def get_constructor_attributes_types(item_type) -> Dict[str, Tuple[Type[Any], bool]]:
""""""
Utility method to return a dictionary of attribute name > attribute type from the constructor of a given type
It supports PEP484 and 'attrs' declaration, see https://github.com/python-attrs/attrs.
:param item_type:
:return: a dictionary containing for each attr name, a tuple (type, is_mandatory)
""""""
res = dict()
try:
# -- Try to read an 'attr' declaration and to extract types and optionality
from parsyfiles.plugins_optional.support_for_attrs import get_attrs_declarations
decls = get_attrs_declarations(item_type)
# check that types are correct
for attr_name, v in decls.items():
typ, is_optional = v
# -- Get and check that the attribute type is PEP484 compliant
typ = get_validated_attribute_type_info(typ, item_type, attr_name)
# -- optional = attrs'Optional validator was used, or a default value was set, or type is pep484 Optional
is_optional = is_optional or is_pep484_nonable(typ)
# -- store both info in result dict
res[attr_name] = (typ, not is_optional)
return res
except: # ImportError or NotAnAttrsClassError but we obviously cant import the latter.
pass # do not specify a type and use 'pass' so as to reset the exception context
# -- Fallback to PEP484
# first get the signature of the class constructor
s = _get_constructor_signature(item_type)
# then extract the type and optionality of each attribute and raise errors if needed
for attr_name in s.parameters.keys():
# skip the 'self' attribute
if attr_name != 'self':
# -- Get and check that the attribute type is PEP484 compliant
typ = get_validated_attribute_type_info(s.parameters[attr_name].annotation, item_type, attr_name)
# -- is the attribute mandatory ?
is_mandatory = (s.parameters[attr_name].default is Parameter.empty) and not is_pep484_nonable(typ)
# -- store both info in result dict
res[attr_name] = (typ, is_mandatory)
return res"
1050,"def create_for_collection_items(item_type, hint):
""""""
Helper method for collection items
:param item_type:
:return:
""""""
# this leads to infinite loops
# try:
# prt_type = get_pretty_type_str(item_type)
# except:
# prt_type = str(item_type)
return TypeInformationRequiredError(""Cannot parse object of type {t} as a collection: this type has no valid ""
""PEP484 type hint about its contents: found {h}. Please use a standard ""
""PEP484 declaration such as Dict[str, Foo] or List[Foo]""
"""".format(t=str(item_type), h=hint))"
1051,"def create_for_object_attributes(item_type, faulty_attribute_name: str, hint):
""""""
Helper method for constructor attributes
:param item_type:
:return:
""""""
# this leads to infinite loops
# try:
# prt_type = get_pretty_type_str(item_type)
# except:
# prt_type = str(item_type)
return TypeInformationRequiredError(""Cannot create instances of type {t}: constructor attribute '{a}' has an""
"" invalid PEP484 type hint: {h}."".format(t=str(item_type),
a=faulty_attribute_name, h=hint))"
1052,"def bounding_box_from_annotation(source=None, padding=None, **kwargs):
""""""bounding_box_from_annotation(source, padding, **kwargs) -> bounding_box
Creates a bounding box from the given parameters, which are, in general, annotations read using :py:func:`bob.ip.facedetect.read_annotation_file`.
Different kinds of annotations are supported, given by the ``source`` keyword:
* ``direct`` : bounding boxes are directly specified by keyword arguments ``topleft`` and ``bottomright``
* ``eyes`` : the left and right eyes are specified by keyword arguments ``leye`` and ``reye``
* ``left-profile`` : the left eye and the mouth are specified by keyword arguments ``eye`` and ``mouth``