def __lt__(self, other):
"""
This method returns ``True`` if this list is "lower than" the given
`other` list. This is the case if...
- this list is empty and the other is not.
- the first nth item in this list which is unequal to the
corresponding item in the other list, is lower than the corresponding
item.
If this and the other list is empty this method will return ``False``.
"""
if not self and other:
return True
elif self and not other:
return False
elif not self and not other:
return False
missing = object()
for a, b in izip_longest(self, other, fillvalue=missing):
if a < b:
return True
elif a == b:
continue
elif a is missing and b is not missing:
return True
return False
def __lt__(self, other):
"""
This method returns ``True`` if this list is "lower than" the given
`other` list. This is the case if...
- this list is empty and the other is not.
- the first nth item in this list which is unequal to the
corresponding item in the other list, is lower than the corresponding
item.
If this and the other list is empty this method will return ``False``.
"""
if not self and other:
return True
elif self and not other:
return False
elif not self and not other:
return False
missing = object()
for a, b in izip_longest(self, other, fillvalue=missing):
if a < b:
return True
elif a == b:
continue
elif a is missing and b is not missing:
return True
return False
def test_izip_longest():
tests = [(((['a', 'b'], ['c', 'd']), {}), [('a', 'c'), ('b', 'd')]),
(((['a'], ['c', 'd']), {}), [('a', 'c'), (None, 'd')]),
(((['a'], ['c', 'd']), {
'fillvalue': 1
}), [('a', 'c'), (1, 'd')])]
for test, result in tests:
args, kwargs = test
Assert(list(izip_longest(*args, **kwargs))) == result
def test_izip_longest():
tests = [
(((['a', 'b'], ['c', 'd']), {}), [('a', 'c'), ('b', 'd')]),
(((['a'], ['c', 'd']), {}), [('a', 'c'), (None, 'd')]),
(((['a'], ['c', 'd']), {'fillvalue': 1}), [('a', 'c'), (1, 'd')])
]
for test, result in tests:
args, kwargs = test
Assert(list(izip_longest(*args, **kwargs))) == result
def __call__(self, *args, **kwargs):
collected_args = self.args.copy()
for remaining, arg in izip_longest(self.remaining_params, args):
if remaining is None:
if self.signature.varargs is None:
raise TypeError('unexpected positional argument: %r' % arg)
collected_args.setdefault(self.signature.varargs, []).append(arg)
elif arg is None:
break
else:
if (remaining in collected_args and
remaining in self.signature.positionals
):
raise TypeError(
"'%s' has been repeated: %r" % (remaining, arg)
)
collected_args[remaining] = arg
self.changeable_args.discard(remaining)
for key, value in kwargs.iteritems():
if key in self.params:
if key in collected_args:
raise TypeError("'%s' has been repeated: %r" % (key, value))
self.changeable_args.discard(key)
collected_args[key] = value
else:
if self.signature.varkwargs is None:
raise TypeError('unexpected keyword argument')
else:
collected_args.setdefault(
self.signature.varkwargs,
FixedDict()
)[key] = value
if set(self.signature.positionals) <= set(collected_args):
func_kwargs = dict(self.signature.kwparams)
func_kwargs = FixedDict(self.signature.kwparams, **collected_args)
func_kwargs.update(func_kwargs.pop(self.signature.varkwargs, {}))
args = map(func_kwargs.pop, self.params)
args += func_kwargs.pop(self.signature.varargs, [])
return self.function(*args, **func_kwargs)
return self._updated(collected_args)
def __call__(self, *args, **kwargs):
collected_args = self.args.copy()
for remaining, arg in izip_longest(self.remaining_params, args):
if remaining is None:
if self.signature.varargs is None:
raise TypeError('unexpected positional argument: %r' % arg)
collected_args.setdefault(self.signature.varargs,
[]).append(arg)
elif arg is None:
break
else:
if (remaining in collected_args
and remaining in self.signature.positionals):
raise TypeError("'%s' has been repeated: %r" %
(remaining, arg))
collected_args[remaining] = arg
self.changeable_args.discard(remaining)
for key, value in kwargs.iteritems():
if key in self.params:
if key in collected_args:
raise TypeError("'%s' has been repeated: %r" %
(key, value))
self.changeable_args.discard(key)
collected_args[key] = value
else:
if self.signature.varkwargs is None:
raise TypeError('unexpected keyword argument')
else:
collected_args.setdefault(self.signature.varkwargs,
FixedDict())[key] = value
if set(self.signature.positionals) <= set(collected_args):
func_kwargs = dict(self.signature.kwparams)
func_kwargs = FixedDict(self.signature.kwparams, **collected_args)
func_kwargs.update(func_kwargs.pop(self.signature.varkwargs, {}))
args = map(func_kwargs.pop, self.params)
args += func_kwargs.pop(self.signature.varargs, [])
return self.function(*args, **func_kwargs)
return self._updated(collected_args)
