def check_py3k_warnings(*filters, **kwargs):
"""Context manager to silence py3k warnings.
Accept 2-tuples as positional arguments:
("message regexp", WarningCategory)
Optional argument:
- if 'quiet' is True, it does not fail if a filter catches nothing
(default False)
Without argument, it defaults to:
check_py3k_warnings(("", DeprecationWarning), quiet=False)
"""
if sys.py3kwarning:
if not filters:
filters = (("", DeprecationWarning),)
else:
# It should not raise any py3k warning
filters = ()
return _filterwarnings(filters, kwargs.get('quiet'))
python类py3kwarning()的实例源码
def check_py3k_warnings(*filters, **kwargs):
"""Context manager to silence py3k warnings.
Accept 2-tuples as positional arguments:
("message regexp", WarningCategory)
Optional argument:
- if 'quiet' is True, it does not fail if a filter catches nothing
(default False)
Without argument, it defaults to:
check_py3k_warnings(("", DeprecationWarning), quiet=False)
"""
if sys.py3kwarning:
if not filters:
filters = (("", DeprecationWarning),)
else:
# It should not raise any py3k warning
filters = ()
return _filterwarnings(filters, kwargs.get('quiet'))
def check_py3k_warnings(*filters, **kwargs):
"""Context manager to silence py3k warnings.
Accept 2-tuples as positional arguments:
("message regexp", WarningCategory)
Optional argument:
- if 'quiet' is True, it does not fail if a filter catches nothing
(default False)
Without argument, it defaults to:
check_py3k_warnings(("", DeprecationWarning), quiet=False)
"""
if sys.py3kwarning:
if not filters:
filters = (("", DeprecationWarning),)
else:
# It should not raise any py3k warning
filters = ()
return _filterwarnings(filters, kwargs.get('quiet'))
def check_py3k_warnings(*filters, **kwargs):
"""Context manager to silence py3k warnings.
Accept 2-tuples as positional arguments:
("message regexp", WarningCategory)
Optional argument:
- if 'quiet' is True, it does not fail if a filter catches nothing
(default False)
Without argument, it defaults to:
check_py3k_warnings(("", DeprecationWarning), quiet=False)
"""
if sys.py3kwarning:
if not filters:
filters = (("", DeprecationWarning),)
else:
# It should not raise any py3k warning
filters = ()
return _filterwarnings(filters, kwargs.get('quiet'))
def test_main():
# Check the doctest cases in doctest itself:
test_support.run_doctest(doctest, verbosity=True)
from test import test_doctest
# Ignore all warnings about the use of class Tester in this module.
deprecations = []
if __debug__:
deprecations.append(("class Tester is deprecated", DeprecationWarning))
if sys.py3kwarning:
deprecations += [("backquote not supported", SyntaxWarning),
("execfile.. not supported", DeprecationWarning)]
with test_support.check_warnings(*deprecations):
# Check the doctest cases defined here:
test_support.run_doctest(test_doctest, verbosity=True)
def check_py3k_warnings(*filters, **kwargs):
"""Context manager to silence py3k warnings.
Accept 2-tuples as positional arguments:
("message regexp", WarningCategory)
Optional argument:
- if 'quiet' is True, it does not fail if a filter catches nothing
(default False)
Without argument, it defaults to:
check_py3k_warnings(("", DeprecationWarning), quiet=False)
"""
if sys.py3kwarning:
if not filters:
filters = (("", DeprecationWarning),)
else:
# It should not raise any py3k warning
filters = ()
return _filterwarnings(filters, kwargs.get('quiet'))
def test_main():
# Check the doctest cases in doctest itself:
test_support.run_doctest(doctest, verbosity=True)
from test import test_doctest
# Ignore all warnings about the use of class Tester in this module.
deprecations = []
if __debug__:
deprecations.append(("class Tester is deprecated", DeprecationWarning))
if sys.py3kwarning:
deprecations += [("backquote not supported", SyntaxWarning),
("execfile.. not supported", DeprecationWarning)]
with test_support.check_warnings(*deprecations):
# Check the doctest cases defined here:
test_support.run_doctest(test_doctest, verbosity=True)
def test_richcompare_crash(self):
# gh-4613
import operator as op
# dummy class where __array__ throws exception
class Foo(object):
__array_priority__ = 1002
def __array__(self, *args, **kwargs):
raise Exception()
rhs = Foo()
lhs = np.array(1)
for f in [op.lt, op.le, op.gt, op.ge]:
if sys.version_info[0] >= 3:
assert_raises(TypeError, f, lhs, rhs)
elif not sys.py3kwarning:
# With -3 switch in python 2, DeprecationWarning is raised
# which we are not interested in
f(lhs, rhs)
assert_(not op.eq(lhs, rhs))
assert_(op.ne(lhs, rhs))
def assertItemsEqual(self, expected_seq, actual_seq, msg=None):
"""An unordered sequence specific comparison. It asserts that
actual_seq and expected_seq have the same element counts.
Equivalent to::
self.assertEqual(Counter(iter(actual_seq)),
Counter(iter(expected_seq)))
Asserts that each element has the same count in both sequences.
Example:
- [0, 1, 1] and [1, 0, 1] compare equal.
- [0, 0, 1] and [0, 1] compare unequal.
"""
first_seq, second_seq = list(actual_seq), list(expected_seq)
with warnings.catch_warnings():
if sys.py3kwarning:
# Silence Py3k warning raised during the sorting
for _msg in ["(code|dict|type) inequality comparisons",
"builtin_function_or_method order comparisons",
"comparing unequal types"]:
warnings.filterwarnings("ignore", _msg, DeprecationWarning)
try:
first = collections.Counter(first_seq)
second = collections.Counter(second_seq)
except TypeError:
# Handle case with unhashable elements
differences = _count_diff_all_purpose(first_seq, second_seq)
else:
if first == second:
return
differences = _count_diff_hashable(first_seq, second_seq)
if differences:
standardMsg = 'Element counts were not equal:\n'
lines = ['First has %d, Second has %d: %r' % diff for diff in differences]
diffMsg = '\n'.join(lines)
standardMsg = self._truncateMessage(standardMsg, diffMsg)
msg = self._formatMessage(msg, standardMsg)
self.fail(msg)
def warnpy3k(message, category=None, stacklevel=1):
"""Issue a deprecation warning for Python 3.x related changes.
Warnings are omitted unless Python is started with the -3 option.
"""
if sys.py3kwarning:
if category is None:
category = DeprecationWarning
warn(message, category, stacklevel+1)
def initiate_send(self):
while self.producer_fifo and self.connected:
first = self.producer_fifo[0]
# handle empty string/buffer or None entry
if not first:
del self.producer_fifo[0]
if first is None:
self.handle_close()
return
# handle classic producer behavior
obs = self.ac_out_buffer_size
try:
with catch_warnings():
if py3kwarning:
filterwarnings("ignore", ".*buffer", DeprecationWarning)
data = buffer(first, 0, obs)
except TypeError:
data = first.more()
if data:
self.producer_fifo.appendleft(data)
else:
del self.producer_fifo[0]
continue
# send the data
try:
num_sent = self.send(data)
except socket.error:
self.handle_error()
return
if num_sent:
if num_sent < len(data) or obs < len(first):
self.producer_fifo[0] = first[num_sent:]
else:
del self.producer_fifo[0]
# we tried to send some actual data
return
def _sorted(iterable):
with warnings.catch_warnings():
if _sys.py3kwarning:
warnings.filterwarnings("ignore", "comparing unequal types "
"not supported", DeprecationWarning)
return sorted(iterable)
def warnpy3k(message, category=None, stacklevel=1):
"""Issue a deprecation warning for Python 3.x related changes.
Warnings are omitted unless Python is started with the -3 option.
"""
if sys.py3kwarning:
if category is None:
category = DeprecationWarning
warn(message, category, stacklevel+1)
def assertItemsEqual(self, expected_seq, actual_seq, msg=None):
"""An unordered sequence specific comparison. It asserts that
actual_seq and expected_seq have the same element counts.
Equivalent to::
self.assertEqual(Counter(iter(actual_seq)),
Counter(iter(expected_seq)))
Asserts that each element has the same count in both sequences.
Example:
- [0, 1, 1] and [1, 0, 1] compare equal.
- [0, 0, 1] and [0, 1] compare unequal.
"""
first_seq, second_seq = list(expected_seq), list(actual_seq)
with warnings.catch_warnings():
if sys.py3kwarning:
# Silence Py3k warning raised during the sorting
for _msg in ["(code|dict|type) inequality comparisons",
"builtin_function_or_method order comparisons",
"comparing unequal types"]:
warnings.filterwarnings("ignore", _msg, DeprecationWarning)
try:
first = collections.Counter(first_seq)
second = collections.Counter(second_seq)
except TypeError:
# Handle case with unhashable elements
differences = _count_diff_all_purpose(first_seq, second_seq)
else:
if first == second:
return
differences = _count_diff_hashable(first_seq, second_seq)
if differences:
standardMsg = 'Element counts were not equal:\n'
lines = ['First has %d, Second has %d: %r' % diff for diff in differences]
diffMsg = '\n'.join(lines)
standardMsg = self._truncateMessage(standardMsg, diffMsg)
msg = self._formatMessage(msg, standardMsg)
self.fail(msg)
def warnpy3k(message, category=None, stacklevel=1):
"""Issue a deprecation warning for Python 3.x related changes.
Warnings are omitted unless Python is started with the -3 option.
"""
if sys.py3kwarning:
if category is None:
category = DeprecationWarning
warn(message, category, stacklevel+1)
def initiate_send(self):
while self.producer_fifo and self.connected:
first = self.producer_fifo[0]
# handle empty string/buffer or None entry
if not first:
del self.producer_fifo[0]
if first is None:
self.handle_close()
return
# handle classic producer behavior
obs = self.ac_out_buffer_size
try:
with catch_warnings():
if py3kwarning:
filterwarnings("ignore", ".*buffer", DeprecationWarning)
data = buffer(first, 0, obs)
except TypeError:
data = first.more()
if data:
self.producer_fifo.appendleft(data)
else:
del self.producer_fifo[0]
continue
# send the data
try:
num_sent = self.send(data)
except socket.error:
self.handle_error()
return
if num_sent:
if num_sent < len(data) or obs < len(first):
self.producer_fifo[0] = first[num_sent:]
else:
del self.producer_fifo[0]
# we tried to send some actual data
return
def _sorted(iterable):
with warnings.catch_warnings():
if _sys.py3kwarning:
warnings.filterwarnings("ignore", "comparing unequal types "
"not supported", DeprecationWarning)
return sorted(iterable)
def warnpy3k(message, category=None, stacklevel=1):
"""Issue a deprecation warning for Python 3.x related changes.
Warnings are omitted unless Python is started with the -3 option.
"""
if sys.py3kwarning:
if category is None:
category = DeprecationWarning
warn(message, category, stacklevel+1)
def warnpy3k(message, category=None, stacklevel=1):
"""Issue a deprecation warning for Python 3.x related changes.
Warnings are omitted unless Python is started with the -3 option.
"""
if sys.py3kwarning:
if category is None:
category = DeprecationWarning
warn(message, category, stacklevel+1)
def warnpy3k(message, category=None, stacklevel=1):
"""Issue a deprecation warning for Python 3.x related changes.
Warnings are omitted unless Python is started with the -3 option.
"""
if sys.py3kwarning:
if category is None:
category = DeprecationWarning
warn(message, category, stacklevel+1)
def warnpy3k(message, category=None, stacklevel=1):
"""Issue a deprecation warning for Python 3.x related changes.
Warnings are omitted unless Python is started with the -3 option.
"""
if sys.py3kwarning:
if category is None:
category = DeprecationWarning
warn(message, category, stacklevel+1)
def warnpy3k(message, category=None, stacklevel=1):
"""Issue a deprecation warning for Python 3.x related changes.
Warnings are omitted unless Python is started with the -3 option.
"""
if sys.py3kwarning:
if category is None:
category = DeprecationWarning
warn(message, category, stacklevel+1)
def _sorted(iterable):
with warnings.catch_warnings():
if _sys.py3kwarning:
warnings.filterwarnings("ignore", "comparing unequal types "
"not supported", DeprecationWarning)
return sorted(iterable)
def warnpy3k(message, category=None, stacklevel=1):
"""Issue a deprecation warning for Python 3.x related changes.
Warnings are omitted unless Python is started with the -3 option.
"""
if sys.py3kwarning:
if category is None:
category = DeprecationWarning
warn(message, category, stacklevel+1)
def warnpy3k(message, category=None, stacklevel=1):
"""Issue a deprecation warning for Python 3.x related changes.
Warnings are omitted unless Python is started with the -3 option.
"""
if sys.py3kwarning:
if category is None:
category = DeprecationWarning
warn(message, category, stacklevel+1)
def _sorted(iterable):
with warnings.catch_warnings():
if _sys.py3kwarning:
warnings.filterwarnings("ignore", "comparing unequal types "
"not supported", DeprecationWarning)
return sorted(iterable)
def warnpy3k(message, category=None, stacklevel=1):
"""Issue a deprecation warning for Python 3.x related changes.
Warnings are omitted unless Python is started with the -3 option.
"""
if sys.py3kwarning:
if category is None:
category = DeprecationWarning
warn(message, category, stacklevel+1)
def warnpy3k(message, category=None, stacklevel=1):
"""Issue a deprecation warning for Python 3.x related changes.
Warnings are omitted unless Python is started with the -3 option.
"""
if sys.py3kwarning:
if category is None:
category = DeprecationWarning
warn(message, category, stacklevel+1)
def warnpy3k(message, category=None, stacklevel=1):
"""Issue a deprecation warning for Python 3.x related changes.
Warnings are omitted unless Python is started with the -3 option.
"""
if sys.py3kwarning:
if category is None:
category = DeprecationWarning
warn(message, category, stacklevel+1)
def warnpy3k(message, category=None, stacklevel=1):
"""Issue a deprecation warning for Python 3.x related changes.
Warnings are omitted unless Python is started with the -3 option.
"""
if sys.py3kwarning:
if category is None:
category = DeprecationWarning
warn(message, category, stacklevel+1)
