Python warnings 模块，filterwarnings() 实例源码

我们从Python开源项目中，提取了以下50个代码示例，用于说明如何使用warnings.filterwarnings()。

项目：Flask_Blog 作者：sugarguo | 项目源码 | 文件源码

def emits_warning_on(db, *messages):
    """Mark a test as emitting a warning on a specific dialect.

    With no arguments, squelches all SAWarning failures.  Or pass one or more
    strings; these will be matched to the root of the warning description by
    warnings.filterwarnings().

    Note that emits_warning_on does **not** assert that the warnings
    were in fact seen.

    """
    @decorator
    def decorate(fn, *args, **kw):
        with expect_warnings_on(db, assert_=False, *messages):
            return fn(*args, **kw)

    return decorate

项目：Flask_Blog 作者：sugarguo | 项目源码 | 文件源码

def uses_deprecated(*messages):
    """Mark a test as immune from fatal deprecation warnings.

    With no arguments, squelches all SADeprecationWarning failures.
    Or pass one or more strings; these will be matched to the root
    of the warning description by warnings.filterwarnings().

    As a special case, you may pass a function name prefixed with //
    and it will be re-written as needed to match the standard warning
    verbiage emitted by the sqlalchemy.util.deprecated decorator.

    Note that uses_deprecated does **not** assert that the warnings
    were in fact seen.

    """

    @decorator
    def decorate(fn, *args, **kw):
        with expect_deprecated(*messages, assert_=False):
            return fn(*args, **kw)
    return decorate

项目：Flask_Blog 作者：sugarguo | 项目源码 | 文件源码

def assert_warnings(fn, warning_msgs, regex=False):
    """Assert that each of the given warnings are emitted by fn."""

    from .assertions import eq_

    with warnings.catch_warnings(record=True) as log:
        # ensure that nothing is going into __warningregistry__
        warnings.filterwarnings("always")

        result = fn()
    for warning in log:
        popwarn = warning_msgs.pop(0)
        if regex:
            assert re.match(popwarn, str(warning.message))
        else:
            eq_(popwarn, str(warning.message))
    return result

项目：sublime-text-3-packages 作者：nickjj | 项目源码 | 文件源码

def run():  # pragma: no cover
    """Run Markdown from the command line."""

    # Parse options and adjust logging level if necessary
    options, logging_level = parse_options()
    if not options:
        sys.exit(2)
    logger.setLevel(logging_level)
    console_handler = logging.StreamHandler()
    logger.addHandler(console_handler)
    if logging_level <= WARNING:
        # Ensure deprecation warnings get displayed
        warnings.filterwarnings('default')
        logging.captureWarnings(True)
        warn_logger = logging.getLogger('py.warnings')
        warn_logger.addHandler(console_handler)

    # Run
    markdown.markdownFromFile(**options)

项目：hostapd-mana 作者：adde88 | 项目源码 | 文件源码

def runWithWarningsSuppressed(suppressedWarnings, f, *a, **kw):
    """Run the function C{f}, but with some warnings suppressed.

    @param suppressedWarnings: A list of arguments to pass to filterwarnings.
                               Must be a sequence of 2-tuples (args, kwargs).
    @param f: A callable, followed by its arguments and keyword arguments
    """
    for args, kwargs in suppressedWarnings:
        warnings.filterwarnings(*args, **kwargs)
    addedFilters = warnings.filters[:len(suppressedWarnings)]
    try:
        result = f(*a, **kw)
    except:
        exc_info = sys.exc_info()
        _resetWarningFilters(None, addedFilters)
        raise exc_info[0], exc_info[1], exc_info[2]
    else:
        if isinstance(result, defer.Deferred):
            result.addBoth(_resetWarningFilters, addedFilters)
        else:
            _resetWarningFilters(None, addedFilters)
        return result

项目：GAMADV-XTD 作者：taers232c | 项目源码 | 文件源码

def test_norm_hash_name(self):
        """norm_hash_name()"""
        from itertools import chain
        from passlib.crypto.digest import norm_hash_name, _known_hash_names

        # snapshot warning state, ignore unknown hash warnings
        ctx = warnings.catch_warnings()
        ctx.__enter__()
        self.addCleanup(ctx.__exit__)
        warnings.filterwarnings("ignore", '.*unknown hash')

        # test string types
        self.assertEqual(norm_hash_name(u("MD4")), "md4")
        self.assertEqual(norm_hash_name(b"MD4"), "md4")
        self.assertRaises(TypeError, norm_hash_name, None)

        # test selected results
        for row in chain(_known_hash_names, self.norm_hash_samples):
            for idx, format in enumerate(self.norm_hash_formats):
                correct = row[idx]
                for value in row:
                    result = norm_hash_name(value, format)
                    self.assertEqual(result, correct,
                                     "name=%r, format=%r:" % (value,
                                                              format))

项目：GAMADV-XTD 作者：taers232c | 项目源码 | 文件源码

def test_90_special(self):
        """test marker option & special behavior"""
        warnings.filterwarnings("ignore", "passing settings to .*.hash\(\) is deprecated")
        handler = self.handler

        # preserve hash if provided
        self.assertEqual(handler.genhash("stub", "!asd"), "!asd")

        # use marker if no hash
        self.assertEqual(handler.genhash("stub", ""), handler.default_marker)
        self.assertEqual(handler.hash("stub"), handler.default_marker)
        self.assertEqual(handler.using().default_marker, handler.default_marker)

        # custom marker
        self.assertEqual(handler.genhash("stub", "", marker="*xxx"), "*xxx")
        self.assertEqual(handler.hash("stub", marker="*xxx"), "*xxx")
        self.assertEqual(handler.using(marker="*xxx").hash("stub"), "*xxx")

        # reject invalid marker
        self.assertRaises(ValueError, handler.genhash, 'stub', "", marker='abc')
        self.assertRaises(ValueError, handler.hash, 'stub', marker='abc')
        self.assertRaises(ValueError, handler.using, marker='abc')

项目：GAMADV-XTD 作者：taers232c | 项目源码 | 文件源码

def test_15_min_verify_time(self):
        """test get_min_verify_time() method"""
        # silence deprecation warnings for min verify time
        warnings.filterwarnings("ignore", category=DeprecationWarning)

        pa = CryptPolicy()
        self.assertEqual(pa.get_min_verify_time(), 0)
        self.assertEqual(pa.get_min_verify_time('admin'), 0)

        pb = pa.replace(min_verify_time=.1)
        self.assertEqual(pb.get_min_verify_time(), 0)
        self.assertEqual(pb.get_min_verify_time('admin'), 0)

    #===================================================================
    # serialization
    #===================================================================

项目：GAMADV-XTD 作者：taers232c | 项目源码 | 文件源码

def setUpWarnings(self):
        """helper to init warning filters before subclass setUp()"""
        if self.resetWarningState:
            ctx = reset_warnings()
            ctx.__enter__()
            self.addCleanup(ctx.__exit__)

            # ignore warnings about PasswordHash features deprecated in 1.7
            # TODO: should be cleaned in 2.0, when support will be dropped.
            #       should be kept until then, so we test the legacy paths.
            warnings.filterwarnings("ignore", r"the method .*\.(encrypt|genconfig|genhash)\(\) is deprecated")
            warnings.filterwarnings("ignore", r"the 'vary_rounds' option is deprecated")

    #---------------------------------------------------------------
    # tweak message formatting so longMessage mode is only enabled
    # if msg ends with ":", and turn on longMessage by default.
    #---------------------------------------------------------------

项目：annotated-py-asyncio 作者：hhstore | 项目源码 | 文件源码

def test_pipe_handle(self):
        h, _ = windows_utils.pipe(overlapped=(True, True))
        _winapi.CloseHandle(_)
        p = windows_utils.PipeHandle(h)
        self.assertEqual(p.fileno(), h)
        self.assertEqual(p.handle, h)

        # check garbage collection of p closes handle
        with warnings.catch_warnings():
            warnings.filterwarnings("ignore", "",  ResourceWarning)
            del p
            support.gc_collect()
        try:
            _winapi.CloseHandle(h)
        except OSError as e:
            self.assertEqual(e.winerror, 6)     # ERROR_INVALID_HANDLE
        else:
            raise RuntimeError('expected ERROR_INVALID_HANDLE')

项目：QXSConsolas 作者：qxsch | 项目源码 | 文件源码

def emits_warning_on(db, *messages):
    """Mark a test as emitting a warning on a specific dialect.

    With no arguments, squelches all SAWarning failures.  Or pass one or more
    strings; these will be matched to the root of the warning description by
    warnings.filterwarnings().

    Note that emits_warning_on does **not** assert that the warnings
    were in fact seen.

    """
    @decorator
    def decorate(fn, *args, **kw):
        with expect_warnings_on(db, assert_=False, *messages):
            return fn(*args, **kw)

    return decorate

项目：QXSConsolas 作者：qxsch | 项目源码 | 文件源码

def uses_deprecated(*messages):
    """Mark a test as immune from fatal deprecation warnings.

    With no arguments, squelches all SADeprecationWarning failures.
    Or pass one or more strings; these will be matched to the root
    of the warning description by warnings.filterwarnings().

    As a special case, you may pass a function name prefixed with //
    and it will be re-written as needed to match the standard warning
    verbiage emitted by the sqlalchemy.util.deprecated decorator.

    Note that uses_deprecated does **not** assert that the warnings
    were in fact seen.

    """

    @decorator
    def decorate(fn, *args, **kw):
        with expect_deprecated(*messages, assert_=False):
            return fn(*args, **kw)
    return decorate