本文整理汇总了Python中werkzeug.utils.validate_arguments方法的典型用法代码示例。如果您正苦于以下问题：Python utils.validate_arguments方法的具体用法？Python utils.validate_arguments怎么用？Python utils.validate_arguments使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类werkzeug.utils的用法示例。
在下文中一共展示了utils.validate_arguments方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: test_validate_arguments
# 需要导入模块: from werkzeug import utils [as 别名]
# 或者: from werkzeug.utils import validate_arguments [as 别名]
def test_validate_arguments(self):
take_none = lambda: None
take_two = lambda a, b: None
take_two_one_default = lambda a, b=0: None
self.assert_equal(utils.validate_arguments(take_two, (1, 2,), {}), ((1, 2), {}))
self.assert_equal(utils.validate_arguments(take_two, (1,), {'b': 2}), ((1, 2), {}))
self.assert_equal(utils.validate_arguments(take_two_one_default, (1,), {}), ((1, 0), {}))
self.assert_equal(utils.validate_arguments(take_two_one_default, (1, 2), {}), ((1, 2), {}))
self.assert_raises(utils.ArgumentValidationError,
utils.validate_arguments, take_two, (), {})
self.assert_equal(utils.validate_arguments(take_none, (1, 2,), {'c': 3}), ((), {}))
self.assert_raises(utils.ArgumentValidationError,
utils.validate_arguments, take_none, (1,), {}, drop_extra=False)
self.assert_raises(utils.ArgumentValidationError,
utils.validate_arguments, take_none, (), {'a': 1}, drop_extra=False) 示例2: validate_arguments
# 需要导入模块: from werkzeug import utils [as 别名]
# 或者: from werkzeug.utils import validate_arguments [as 别名]
def validate_arguments(func, args, kwargs, drop_extra=True):
"""Checks if the function accepts the arguments and keyword arguments.
Returns a new ``(args, kwargs)`` tuple that can safely be passed to
the function without causing a `TypeError` because the function signature
is incompatible. If `drop_extra` is set to `True` (which is the default)
any extra positional or keyword arguments are dropped automatically.
The exception raised provides three attributes:
`missing`
A set of argument names that the function expected but where
missing.
`extra`
A dict of keyword arguments that the function can not handle but
where provided.
`extra_positional`
A list of values that where given by positional argument but the
function cannot accept.
This can be useful for decorators that forward user submitted data to
a view function::
from werkzeug.utils import ArgumentValidationError, validate_arguments
def sanitize(f):
def proxy(request):
data = request.values.to_dict()
try:
args, kwargs = validate_arguments(f, (request,), data)
except ArgumentValidationError:
raise BadRequest('The browser failed to transmit all '
'the data expected.')
return f(*args, **kwargs)
return proxy
:param func: the function the validation is performed against.
:param args: a tuple of positional arguments.
:param kwargs: a dict of keyword arguments.
:param drop_extra: set to `False` if you don't want extra arguments
to be silently dropped.
:return: tuple in the form ``(args, kwargs)``.
"""
parser = _parse_signature(func)
args, kwargs, missing, extra, extra_positional = parser(args, kwargs)[:5]
if missing:
raise ArgumentValidationError(tuple(missing))
elif (extra or extra_positional) and not drop_extra:
raise ArgumentValidationError(None, extra, extra_positional)
return tuple(args), kwargs 示例3: validate_arguments
# 需要导入模块: from werkzeug import utils [as 别名]
# 或者: from werkzeug.utils import validate_arguments [as 别名]
def validate_arguments(func, args, kwargs, drop_extra=True):
"""Check if the function accepts the arguments and keyword arguments.
Returns a new ``(args, kwargs)`` tuple that can safely be passed to
the function without causing a `TypeError` because the function signature
is incompatible. If `drop_extra` is set to `True` (which is the default)
any extra positional or keyword arguments are dropped automatically.
The exception raised provides three attributes:
`missing`
A set of argument names that the function expected but where
missing.
`extra`
A dict of keyword arguments that the function can not handle but
where provided.
`extra_positional`
A list of values that where given by positional argument but the
function cannot accept.
This can be useful for decorators that forward user submitted data to
a view function::
from werkzeug.utils import ArgumentValidationError, validate_arguments
def sanitize(f):
def proxy(request):
data = request.values.to_dict()
try:
args, kwargs = validate_arguments(f, (request,), data)
except ArgumentValidationError:
raise BadRequest('The browser failed to transmit all '
'the data expected.')
return f(*args, **kwargs)
return proxy
:param func: the function the validation is performed against.
:param args: a tuple of positional arguments.
:param kwargs: a dict of keyword arguments.
:param drop_extra: set to `False` if you don't want extra arguments
to be silently dropped.
:return: tuple in the form ``(args, kwargs)``.
"""
parser = _parse_signature(func)
args, kwargs, missing, extra, extra_positional = parser(args, kwargs)[:5]
if missing:
raise ArgumentValidationError(tuple(missing))
elif (extra or extra_positional) and not drop_extra:
raise ArgumentValidationError(None, extra, extra_positional)
return tuple(args), kwargs