def test_symbols():
foo = symbol('foo')
assert foo.name == 'foo'
assert foo is symbol('foo')
bar = symbol('bar')
assert foo is not bar
assert foo != bar
assert not foo == bar
assert repr(foo) == 'foo'
def test_symbols():
foo = symbol('foo')
assert foo.name == 'foo'
assert foo is symbol('foo')
bar = symbol('bar')
assert foo is not bar
assert foo != bar
assert not foo == bar
assert repr(foo) == 'foo'
"""
from warnings import warn
from weakref import WeakValueDictionary
from blinker._utilities import (
WeakTypes,
contextmanager,
defaultdict,
hashable_identity,
reference,
symbol,
)
ANY = symbol('ANY')
ANY.__doc__ = 'Token for "any sender".'
ANY_ID = 0
class Signal(object):
"""A notification emitter."""
#: An :obj:`ANY` convenience synonym, allows ``Signal.ANY``
#: without an additional import.
ANY = ANY
def __init__(self, doc=None):
"""
:param doc: optional. If provided, will be assigned to the signal's
__doc__ attribute.
The :func:`signal` function provides singleton behavior for named signals.
"""
from warnings import warn
from weakref import WeakValueDictionary
from blinker._utilities import (
WeakTypes,
contextmanager,
defaultdict,
hashable_identity,
reference,
symbol,
)
ANY = symbol('ANY')
ANY.__doc__ = 'Token for "any sender".'
ANY_ID = 0
class Signal(object):
"""A notification emitter."""
#: An :obj:`ANY` convenience synonym, allows ``Signal.ANY``
#: without an additional import.
ANY = ANY
def __init__(self, doc=None):
"""
:param doc: optional. If provided, will be assigned to the signal's
__doc__ attribute.
"""
from warnings import warn
from weakref import WeakValueDictionary
from blinker._utilities import (
WeakTypes,
contextmanager,
defaultdict,
hashable_identity,
lazy_property,
reference,
symbol,
)
ANY = symbol("ANY")
ANY.__doc__ = 'Token for "any sender".'
ANY_ID = 0
class Signal(object):
"""A notification emitter."""
#: An :obj:`ANY` convenience synonym, allows ``Signal.ANY``
#: without an additional import.
ANY = ANY
@lazy_property
def receiver_connected(self):
"""Emitted after each :meth:`connect`.
def test_pickled_symbols():
foo = symbol('foo')
for protocol in 0, 1, 2:
roundtrip = pickle.loads(pickle.dumps(foo))
assert roundtrip is foo
def test_pickled_symbols():
foo = symbol('foo')
for protocol in 0, 1, 2:
roundtrip = pickle.loads(pickle.dumps(foo))
assert roundtrip is foo