Python attr.NOTHING属性代码示例

# 需要导入模块: import attr [as 别名]
# 或者: from attr import NOTHING [as 别名]
def ChildField(cls, default=NOTHING, required=True, repr=True, cmp=True,
               key=None):
    """
    Create new child field on a model.

    :param cls: class (or name) of the model to be related.
    :param default: any object value of type cls
    :param bool required: whether or not the object is invalid if not provided.
    :param bool repr: include this field should appear in object's repr.
    :param bool cmp: include this field in generated comparison.
    :param string key: override name of the value when converted to dict.
    """
    default = _init_fields.init_default(required, default, None)
    converter = converters.to_child_field(cls)
    validator = _init_fields.init_validator(
        required, object if isinstance(cls, str) else cls
    )
    return attrib(default=default, converter=converter, validator=validator,
                  repr=repr, cmp=cmp, metadata=dict(key=key)) 

# 需要导入模块: import attr [as 别名]
# 或者: from attr import NOTHING [as 别名]
def DateField(formatter=types.DEFAULT_DATE_FORMAT, default=NOTHING,
              required=True, repr=True, cmp=True, key=None):
    """
    Create new date field on a model.

    :param formatter: date formatter string (default: "%Y-%m-%d")
    :param default: any date or string that can be converted to a date value
    :param bool required: whether or not the object is invalid if not provided.
    :param bool repr: include this field should appear in object's repr.
    :param bool cmp: include this field in generated comparison.
    :param string key: override name of the value when converted to dict.
    """
    default = _init_fields.init_default(required, default, None)
    validator = _init_fields.init_validator(required, date)
    converter = converters.to_date_field(formatter)
    return attrib(default=default, converter=converter, validator=validator,
                  repr=repr, cmp=cmp,
                  metadata=dict(formatter=formatter, key=key)) 

# 需要导入模块: import attr [as 别名]
# 或者: from attr import NOTHING [as 别名]
def DateTimeField(formatter=types.DEFAULT_DATETIME_FORMAT, default=NOTHING,
                  required=True, repr=True, cmp=True, key=None):
    """
    Create new datetime field on a model.

    :param formatter: datetime formatter string (default: "ISO_FORMAT")
    :param default: any datetime or string that can be converted to a datetime
    :param bool required: whether or not the object is invalid if not provided.
    :param bool repr: include this field should appear in object's repr.
    :param bool cmp: include this field in generated comparison.
    :param string key: override name of the value when converted to dict.
    """
    default = _init_fields.init_default(required, default, None)
    validator = _init_fields.init_validator(required, datetime)
    converter = converters.to_datetime_field(formatter)
    return attrib(default=default, converter=converter, validator=validator,
                  repr=repr, cmp=cmp,
                  metadata=dict(formatter=formatter, key=key)) 

# 需要导入模块: import attr [as 别名]
# 或者: from attr import NOTHING [as 别名]
def TimeField(formatter=types.DEFAULT_TIME_FORMAT, default=NOTHING,
              required=True, repr=True, cmp=True, key=None):
    """
    Create new time field on a model.

    :param formatter: time formatter string (default: "%H:%M:%S")
    :param default: any time or string that can be converted to a time value
    :param bool required: whether or not the object is invalid if not provided.
    :param bool repr: include this field should appear in object's repr.
    :param bool cmp: include this field in generated comparison.
    :param string key: override name of the value when converted to dict.
    """
    default = _init_fields.init_default(required, default, None)
    validator = _init_fields.init_validator(required, time)
    converter = converters.to_time_field(formatter)
    return attrib(default=default, converter=converter, validator=validator,
                  repr=repr, cmp=cmp,
                  metadata=dict(formatter=formatter, key=key)) 

# 需要导入模块: import attr [as 别名]
# 或者: from attr import NOTHING [as 别名]
def IntegerField(default=NOTHING, required=True, repr=True, cmp=True,
                 key=None):
    """
    Create new int field on a model.

    :param default: any integer value
    :param bool required: whether or not the object is invalid if not provided.
    :param bool repr: include this field should appear in object's repr.
    :param bool cmp: include this field in generated comparison.
    :param string key: override name of the value when converted to dict.
    """
    default = _init_fields.init_default(required, default, None)
    validator = _init_fields.init_validator(required, int)
    return attrib(default=default, converter=converters.int_if_not_none,
                  validator=validator, repr=repr, cmp=cmp,
                  metadata=dict(key=key)) 

# 需要导入模块: import attr [as 别名]
# 或者: from attr import NOTHING [as 别名]
def MappingField(cls, child_key, default=NOTHING, required=True, repr=False,
                 key=None):
    """
    Create new mapping field on a model.

    :param cls: class (or name) of the model to be related in Sequence.
    :param child_key: key field on the child object to be used as the map key.
    :param default: any mapping type
    :param bool required: whether or not the object is invalid if not provided.
    :param bool repr: include this field should appear in object's repr.
    :param bool cmp: include this field in generated comparison.
    :param string key: override name of the value when converted to dict.
    """
    default = _init_fields.init_default(required, default, OrderedDict())
    converter = converters.to_mapping_field(cls, child_key)
    validator = _init_fields.init_validator(required, types.TypedMapping)
    return attrib(default=default, converter=converter, validator=validator,
                  repr=repr, metadata=dict(key=key)) 

# 需要导入模块: import attr [as 别名]
# 或者: from attr import NOTHING [as 别名]
def RegexField(regex, default=NOTHING, required=True, repr=True, cmp=True,
               key=None):
    """
    Create new str field on a model.

    :param regex: regex validation string (e.g. "[^@]+@[^@]+" for email)
    :param default: any string value
    :param bool required: whether or not the object is invalid if not provided.
    :param bool repr: include this field should appear in object's repr.
    :param bool cmp: include this field in generated comparison.
    :param string key: override name of the value when converted to dict.
    """
    default = _init_fields.init_default(required, default, None)
    validator = _init_fields.init_validator(required, string_types,
                                            validators.regex(regex))
    return attrib(default=default, converter=converters.str_if_not_none,
                  validator=validator, repr=repr, cmp=cmp,
                  metadata=dict(key=key)) 

# 需要导入模块: import attr [as 别名]
# 或者: from attr import NOTHING [as 别名]
def SequenceField(cls, default=NOTHING, required=True, repr=False, key=None):
    """
    Create new sequence field on a model.

    :param cls: class (or name) of the model to be related in Sequence.
    :param default: any TypedSequence or list
    :param bool required: whether or not the object is invalid if not provided.
    :param bool repr: include this field should appear in object's repr.
    :param bool cmp: include this field in generated comparison.
    :param string key: override name of the value when converted to dict.
    """
    default = _init_fields.init_default(required, default, [])
    converter = converters.to_sequence_field(cls)
    validator = _init_fields.init_validator(required, types.TypedSequence)
    return attrib(default=default, converter=converter, validator=validator,
                  repr=repr, metadata=dict(key=key)) 

# 需要导入模块: import attr [as 别名]
# 或者: from attr import NOTHING [as 别名]
def SetField(cls, default=NOTHING, required=True, repr=False, key=None):
    """
    Create new set field on a model.

    :param cls: class (or name) of the model to be related in Set.
    :param default: any TypedSet or set
    :param bool required: whether or not the object is invalid if not provided.
    :param bool repr: include this field should appear in object's repr.
    :param bool cmp: include this field in generated comparison.
    :param string key: override name of the value when converted to dict.
    """
    default = _init_fields.init_default(required, default, set())
    converter = converters.to_set_field(cls)
    validator = _init_fields.init_validator(required, types.TypedSet)
    return attrib(default=default, converter=converter, validator=validator,
                  repr=repr, metadata=dict(key=key)) 

# 需要导入模块: import attr [as 别名]
# 或者: from attr import NOTHING [as 别名]
def URLField(default=NOTHING, required=True, repr=True, cmp=True, key=None):
    """
    Create new UUID field on a model.

    :param default: any value
    :param bool required: whether or not the object is invalid if not provided.
    :param bool repr: include this field should appear in object's repr.
    :param bool cmp: include this field in generated comparison.
    :param string key: override name of the value when converted to dict.
    """
    cls = ParseResult
    default = _init_fields.init_default(required, default, None)
    validator = _init_fields.init_validator(required, cls)
    return attrib(default=default, converter=converters.str_to_url,
                  validator=validator, repr=repr, cmp=cmp,
                  metadata=dict(key=key)) 

# 需要导入模块: import attr [as 别名]
# 或者: from attr import NOTHING [as 别名]
def UUIDField(default=NOTHING, required=False, repr=True, cmp=True, key=None):
    """
    Create new UUID field on a model.

    :param default: any value
    :param bool required: whether or not the object is invalid if not provided.
    :param bool repr: include this field should appear in object's repr.
    :param bool cmp: include this field in generated comparison.
    :param string key: override name of the value when converted to dict.
    """
    cls = UUID
    default = _init_fields.init_default(required, default, uuid4)
    validator = _init_fields.init_validator(required, cls)
    return attrib(default=default, converter=converters.str_to_uuid,
                  validator=validator, repr=repr, cmp=cmp,
                  metadata=dict(key=key)) 

# 需要导入模块: import attr [as 别名]
# 或者: from attr import NOTHING [as 别名]
def DecimalField(default=NOTHING, required=True, repr=True, cmp=True,
                 key=None):
    """
    Create new decimal field on a model.

    :param default: any decimal value
    :param bool required: whether or not the object is invalid if not provided.
    :param bool repr: include this field should appear in object's repr.
    :param bool cmp: include this field in generated comparison.
    :param string key: override name of the value when converted to dict.
    """
    default = _init_fields.init_default(required, default, None)
    validator = _init_fields.init_validator(required, Decimal)
    return attrib(default=default, converter=lambda x: Decimal(x),
                  validator=validator, repr=repr, cmp=cmp,
                  metadata=dict(key=key)) 

# 需要导入模块: import attr [as 别名]
# 或者: from attr import NOTHING [as 别名]
def _preprocess_typehint(self, typehint, kwargs, field_name, target):
        # while this seems contradictory to this converter, we need to
        # ignore attrs specific actions when a container type, e.g. a List[T],
        # contains a non-attrs manufactured type because this is recursively
        # called during schema generation.
        # however those types will still require an entry in the registry
        # is handled outside this converter
        if not _is_attrs(target):
            return

        attr = _get_attr_from_attrs(target.__attrs_attrs__, field_name)

        if attr.default != NOTHING:
            # default to optional even if the typehint isn't
            # but don't override the user saying otherwise
            kwargs.setdefault("required", False)
            kwargs.setdefault("missing", missing) 

# 需要导入模块: import attr [as 别名]
# 或者: from attr import NOTHING [as 别名]
def _get(self, environ, metadata, prefix, name):
        # Delayed loading.
        if self._cfg is None and self._env_name is not None:
            log.debug("looking for env var '%s'." % (self._env_name,))
            self._cfg = _load_ini(
                environ.get(self._env_name, self._env_default)
            )

        ce = metadata[CNF_KEY]
        ic = metadata[CNF_INI_SECRET_KEY]
        section = ic.section

        if ce.name is not None:
            var = ce.name
        else:
            var = "_".join((prefix + (name,)))
        try:
            log.debug("looking for '%s' in section '%s'." % (var, section))
            return _SecretStr(self._cfg.get(section, var))
        except NoOptionError:
            if isinstance(ce.default, attr.Factory):
                return attr.NOTHING
            elif ce.default is not RAISE:
                return ce.default
            raise MissingSecretError(var) 

# 需要导入模块: import attr [as 别名]
# 或者: from attr import NOTHING [as 别名]
def _create_hyp_class(attrs_and_strategy):
    """
    A helper function for Hypothesis to generate attrs classes.

    The result is a tuple: an attrs class, and a tuple of values to
    instantiate it.
    """

    def key(t):
        return t[0].default is not NOTHING

    attrs_and_strat = sorted(attrs_and_strategy, key=key)
    attrs = [a[0] for a in attrs_and_strat]
    for i, a in enumerate(attrs):
        a.counter = i
    vals = tuple((a[1]) for a in attrs_and_strat)
    return st.tuples(
        st.just(
            make_class("HypClass", OrderedDict(zip(gen_attr_names(), attrs)))
        ),
        st.tuples(*vals),
    )