Python warnings.showwarning() Examples

The following are 30 code examples of warnings.showwarning(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module warnings , or try the search function .
Example #1
Source File: PyShell.py    From oss-ftp with MIT License 6 votes vote down vote up 
def idle_showwarning(
        message, category, filename, lineno, file=None, line=None):
    """Show Idle-format warning (after replacing warnings.showwarning).

    The differences are the formatter called, the file=None replacement,
    which can be None, the capture of the consequence AttributeError,
    and the output of a hard-coded prompt.
    """
    if file is None:
        file = warning_stream
    try:
        file.write(idle_formatwarning(
                message, category, filename, lineno, line=line))
        file.write(">>> ")
    except (AttributeError, IOError):
        pass  # if file (probably __stderr__) is invalid, skip warning.
Example #2
Source File: __init__.py    From meddle with MIT License 6 votes vote down vote up 
def _showwarning(message, category, filename, lineno, file=None, line=None):
    """
    Implementation of showwarnings which redirects to logging, which will first
    check to see if the file parameter is None. If a file is specified, it will
    delegate to the original warnings implementation of showwarning. Otherwise,
    it will call warnings.formatwarning and will log the resulting string to a
    warnings logger named "py.warnings" with level logging.WARNING.
    """
    if file is not None:
        if _warnings_showwarning is not None:
            _warnings_showwarning(message, category, filename, lineno, file, line)
    else:
        s = warnings.formatwarning(message, category, filename, lineno, line)
        logger = getLogger("py.warnings")
        if not logger.handlers:
            logger.addHandler(NullHandler())
        logger.warning("%s", s)
Example #3
Source File: __init__.py    From Fluid-Designer with GNU General Public License v3.0 6 votes vote down vote up 
def _showwarning(message, category, filename, lineno, file=None, line=None):
    """
    Implementation of showwarnings which redirects to logging, which will first
    check to see if the file parameter is None. If a file is specified, it will
    delegate to the original warnings implementation of showwarning. Otherwise,
    it will call warnings.formatwarning and will log the resulting string to a
    warnings logger named "py.warnings" with level logging.WARNING.
    """
    if file is not None:
        if _warnings_showwarning is not None:
            _warnings_showwarning(message, category, filename, lineno, file, line)
    else:
        s = warnings.formatwarning(message, category, filename, lineno, line)
        logger = getLogger("py.warnings")
        if not logger.handlers:
            logger.addHandler(NullHandler())
        logger.warning("%s", s)
Example #4
Source File: __init__.py    From jawfish with MIT License 6 votes vote down vote up 
def _showwarning(message, category, filename, lineno, file=None, line=None):
    """
    Implementation of showwarnings which redirects to logging, which will first
    check to see if the file parameter is None. If a file is specified, it will
    delegate to the original warnings implementation of showwarning. Otherwise,
    it will call warnings.formatwarning and will log the resulting string to a
    warnings logger named "py.warnings" with level logging.WARNING.
    """
    if file is not None:
        if _warnings_showwarning is not None:
            _warnings_showwarning(message, category, filename, lineno, file, line)
    else:
        s = warnings.formatwarning(message, category, filename, lineno, line)
        logger = getLogger("py.warnings")
        if not logger.handlers:
            logger.addHandler(NullHandler())
        logger.warning("%s", s)
Example #5
Source File: utils.py    From vnpy_crypto with MIT License 6 votes vote down vote up 
def __enter__(self):
        if self._entered:
            raise RuntimeError("Cannot enter %r twice" % self)
        self._entered = True
        self._filters = self._module.filters
        self._module.filters = self._filters[:]
        self._showwarning = self._module.showwarning
        if self._record:
            log = []

            def showwarning(*args, **kwargs):
                log.append(WarningMessage(*args, **kwargs))
            self._module.showwarning = showwarning
            return log
        else:
            return None
Example #6
Source File: __init__.py    From ironpython2 with Apache License 2.0 6 votes vote down vote up 
def _showwarning(message, category, filename, lineno, file=None, line=None):
    """
    Implementation of showwarnings which redirects to logging, which will first
    check to see if the file parameter is None. If a file is specified, it will
    delegate to the original warnings implementation of showwarning. Otherwise,
    it will call warnings.formatwarning and will log the resulting string to a
    warnings logger named "py.warnings" with level logging.WARNING.
    """
    if file is not None:
        if _warnings_showwarning is not None:
            _warnings_showwarning(message, category, filename, lineno, file, line)
    else:
        s = warnings.formatwarning(message, category, filename, lineno, line)
        logger = getLogger("py.warnings")
        if not logger.handlers:
            logger.addHandler(NullHandler())
        logger.warning("%s", s)
Example #7
Source File: test_logging.py    From ironpython2 with Apache License 2.0 6 votes vote down vote up 
def test_warnings(self):
        with warnings.catch_warnings():
            logging.captureWarnings(True)
            try:
                warnings.filterwarnings("always", category=UserWarning)
                file = cStringIO.StringIO()
                h = logging.StreamHandler(file)
                logger = logging.getLogger("py.warnings")
                logger.addHandler(h)
                warnings.warn("I'm warning you...")
                logger.removeHandler(h)
                s = file.getvalue()
                h.close()
                self.assertTrue(s.find("UserWarning: I'm warning you...\n") > 0)

                #See if an explicit file uses the original implementation
                file = cStringIO.StringIO()
                warnings.showwarning("Explicit", UserWarning, "dummy.py", 42,
                                        file, "Dummy line")
                s = file.getvalue()
                file.close()
                self.assertEqual(s,
                        "dummy.py:42: UserWarning: Explicit\n  Dummy line\n")
            finally:
                logging.captureWarnings(False)
Example #8
Source File: utils.py    From auto-alt-text-lambda-api with MIT License 6 votes vote down vote up 
def __enter__(self):
        if self._entered:
            raise RuntimeError("Cannot enter %r twice" % self)
        self._entered = True
        self._filters = self._module.filters
        self._module.filters = self._filters[:]
        self._showwarning = self._module.showwarning
        if self._record:
            log = []

            def showwarning(*args, **kwargs):
                log.append(WarningMessage(*args, **kwargs))
            self._module.showwarning = showwarning
            return log
        else:
            return None
Example #9
Source File: __init__.py    From pmatic with GNU General Public License v2.0 6 votes vote down vote up 
def _showwarning(message, category, filename, lineno, file=None, line=None):
    """
    Implementation of showwarnings which redirects to logging, which will first
    check to see if the file parameter is None. If a file is specified, it will
    delegate to the original warnings implementation of showwarning. Otherwise,
    it will call warnings.formatwarning and will log the resulting string to a
    warnings logger named "py.warnings" with level logging.WARNING.
    """
    if file is not None:
        if _warnings_showwarning is not None:
            _warnings_showwarning(message, category, filename, lineno, file, line)
    else:
        s = warnings.formatwarning(message, category, filename, lineno, line)
        logger = getLogger("py.warnings")
        if not logger.handlers:
            logger.addHandler(NullHandler())
        logger.warning("%s", s)
Example #10
Source File: __init__.py    From BinderFilter with MIT License 6 votes vote down vote up 
def _showwarning(message, category, filename, lineno, file=None, line=None):
    """
    Implementation of showwarnings which redirects to logging, which will first
    check to see if the file parameter is None. If a file is specified, it will
    delegate to the original warnings implementation of showwarning. Otherwise,
    it will call warnings.formatwarning and will log the resulting string to a
    warnings logger named "py.warnings" with level logging.WARNING.
    """
    if file is not None:
        if _warnings_showwarning is not None:
            _warnings_showwarning(message, category, filename, lineno, file, line)
    else:
        s = warnings.formatwarning(message, category, filename, lineno, line)
        logger = getLogger("py.warnings")
        if not logger.handlers:
            logger.addHandler(NullHandler())
        logger.warning("%s", s)
Example #11
Source File: test_logging.py    From BinderFilter with MIT License 6 votes vote down vote up 
def test_warnings(self):
        with warnings.catch_warnings():
            logging.captureWarnings(True)
            try:
                warnings.filterwarnings("always", category=UserWarning)
                file = cStringIO.StringIO()
                h = logging.StreamHandler(file)
                logger = logging.getLogger("py.warnings")
                logger.addHandler(h)
                warnings.warn("I'm warning you...")
                logger.removeHandler(h)
                s = file.getvalue()
                h.close()
                self.assertTrue(s.find("UserWarning: I'm warning you...\n") > 0)

                #See if an explicit file uses the original implementation
                file = cStringIO.StringIO()
                warnings.showwarning("Explicit", UserWarning, "dummy.py", 42,
                                        file, "Dummy line")
                s = file.getvalue()
                file.close()
                self.assertEqual(s,
                        "dummy.py:42: UserWarning: Explicit\n  Dummy line\n")
            finally:
                logging.captureWarnings(False)
Example #12
Source File: __init__.py    From Computable with MIT License 6 votes vote down vote up 
def _showwarning(message, category, filename, lineno, file=None, line=None):
    """
    Implementation of showwarnings which redirects to logging, which will first
    check to see if the file parameter is None. If a file is specified, it will
    delegate to the original warnings implementation of showwarning. Otherwise,
    it will call warnings.formatwarning and will log the resulting string to a
    warnings logger named "py.warnings" with level logging.WARNING.
    """
    if file is not None:
        if _warnings_showwarning is not None:
            _warnings_showwarning(message, category, filename, lineno, file, line)
    else:
        s = warnings.formatwarning(message, category, filename, lineno, line)
        logger = getLogger("py.warnings")
        if not logger.handlers:
            logger.addHandler(NullHandler())
        logger.warning("%s", s)
Example #13
Source File: bot.py    From abusehelper with MIT License 6 votes vote down vote up 
def execute(self):
        def showwarning(message, category, filename, fileno, file=None, line=None):
            msg = warnings.formatwarning(message, category, filename, fileno, line)
            self.log.warning(msg.strip())

        with warnings.catch_warnings():
            warnings.simplefilter("always")
            warnings.showwarning = showwarning

            try:
                return self.run()
            except SystemExit:
                raise
            except:
                self.log.critical(traceback.format_exc().strip())
                sys.exit(1)
Example #14
Source File: __init__.py    From oss-ftp with MIT License 6 votes vote down vote up 
def _showwarning(message, category, filename, lineno, file=None, line=None):
    """
    Implementation of showwarnings which redirects to logging, which will first
    check to see if the file parameter is None. If a file is specified, it will
    delegate to the original warnings implementation of showwarning. Otherwise,
    it will call warnings.formatwarning and will log the resulting string to a
    warnings logger named "py.warnings" with level logging.WARNING.
    """
    if file is not None:
        if _warnings_showwarning is not None:
            _warnings_showwarning(message, category, filename, lineno, file, line)
    else:
        s = warnings.formatwarning(message, category, filename, lineno, line)
        logger = getLogger("py.warnings")
        if not logger.handlers:
            logger.addHandler(NullHandler())
        logger.warning("%s", s)
Example #15
Source File: test_logging.py    From oss-ftp with MIT License 6 votes vote down vote up 
def test_warnings(self):
        with warnings.catch_warnings():
            logging.captureWarnings(True)
            try:
                warnings.filterwarnings("always", category=UserWarning)
                file = cStringIO.StringIO()
                h = logging.StreamHandler(file)
                logger = logging.getLogger("py.warnings")
                logger.addHandler(h)
                warnings.warn("I'm warning you...")
                logger.removeHandler(h)
                s = file.getvalue()
                h.close()
                self.assertTrue(s.find("UserWarning: I'm warning you...\n") > 0)

                #See if an explicit file uses the original implementation
                file = cStringIO.StringIO()
                warnings.showwarning("Explicit", UserWarning, "dummy.py", 42,
                                        file, "Dummy line")
                s = file.getvalue()
                file.close()
                self.assertEqual(s,
                        "dummy.py:42: UserWarning: Explicit\n  Dummy line\n")
            finally:
                logging.captureWarnings(False)
Example #16
Source File: deprecation.py    From hacktoberfest2018 with GNU General Public License v3.0 5 votes vote down vote up 
def install_warning_logger():
    # Enable our Deprecation Warnings
    warnings.simplefilter("default", PipDeprecationWarning, append=True)

    global _warnings_showwarning

    if _warnings_showwarning is None:
        _warnings_showwarning = warnings.showwarning
        warnings.showwarning = _showwarning
Example #17
Source File: _synctest.py    From Safejumper-for-Desktop with GNU General Public License v2.0 5 votes vote down vote up 
def _collectWarnings(observeWarning, f, *args, **kwargs):
    """
    Call C{f} with C{args} positional arguments and C{kwargs} keyword arguments
    and collect all warnings which are emitted as a result in a list.

    @param observeWarning: A callable which will be invoked with a L{_Warning}
        instance each time a warning is emitted.

    @return: The return value of C{f(*args, **kwargs)}.
    """
    def showWarning(message, category, filename, lineno, file=None, line=None):
        assert isinstance(message, Warning)
        observeWarning(_Warning(
                str(message), category, filename, lineno))

    # Disable the per-module cache for every module otherwise if the warning
    # which the caller is expecting us to collect was already emitted it won't
    # be re-emitted by the call to f which happens below.
    _setWarningRegistryToNone(sys.modules)

    origFilters = warnings.filters[:]
    origShow = warnings.showwarning
    warnings.simplefilter('always')
    try:
        warnings.showwarning = showWarning
        result = f(*args, **kwargs)
    finally:
        warnings.filters[:] = origFilters
        warnings.showwarning = origShow
    return result
Example #18
Source File: deprecation.py    From hacktoberfest2018 with GNU General Public License v3.0 5 votes vote down vote up 
def install_warning_logger():
    # Enable our Deprecation Warnings
    warnings.simplefilter("default", PipDeprecationWarning, append=True)

    global _warnings_showwarning

    if _warnings_showwarning is None:
        _warnings_showwarning = warnings.showwarning
        warnings.showwarning = _showwarning
Example #19
Source File: deprecation.py    From Safejumper-for-Desktop with GNU General Public License v2.0 5 votes vote down vote up 
def install_warning_logger():
    # Enable our Deprecation Warnings
    warnings.simplefilter("default", PipDeprecationWarning, append=True)

    global _warnings_showwarning

    if _warnings_showwarning is None:
        _warnings_showwarning = warnings.showwarning
        warnings.showwarning = _showwarning
Example #20
Source File: deprecation.py    From anpr with Creative Commons Attribution 4.0 International 5 votes vote down vote up 
def install_warning_logger():
    # Enable our Deprecation Warnings
    warnings.simplefilter("default", PipDeprecationWarning, append=True)

    global _warnings_showwarning

    if _warnings_showwarning is None:
        _warnings_showwarning = warnings.showwarning
        warnings.showwarning = _showwarning
Example #21
Source File: utils.py    From GraphicDesignPatternByPython with MIT License 5 votes vote down vote up 
def __enter__(self):
        if self._entered:
            raise RuntimeError("cannot enter suppress_warnings twice.")

        self._orig_show = warnings.showwarning
        self._filters = warnings.filters
        warnings.filters = self._filters[:]

        self._entered = True
        self._tmp_suppressions = []
        self._tmp_modules = set()
        self._forwarded = set()

        self.log = []  # reset global log (no need to keep same list)

        for cat, mess, _, mod, log in self._suppressions:
            if log is not None:
                del log[:]  # clear the log
            if mod is None:
                warnings.filterwarnings(
                    "always", category=cat, message=mess)
            else:
                module_regex = mod.__name__.replace('.', r'\.') + '$'
                warnings.filterwarnings(
                    "always", category=cat, message=mess,
                    module=module_regex)
                self._tmp_modules.add(mod)
        warnings.showwarning = self._showwarning
        self._clear_registries()

        return self
Example #22
Source File: utils.py    From predictive-maintenance-using-machine-learning with Apache License 2.0 5 votes vote down vote up 
def __enter__(self):
        if self._entered:
            raise RuntimeError("cannot enter suppress_warnings twice.")

        self._orig_show = warnings.showwarning
        self._filters = warnings.filters
        warnings.filters = self._filters[:]

        self._entered = True
        self._tmp_suppressions = []
        self._tmp_modules = set()
        self._forwarded = set()

        self.log = []  # reset global log (no need to keep same list)

        for cat, mess, _, mod, log in self._suppressions:
            if log is not None:
                del log[:]  # clear the log
            if mod is None:
                warnings.filterwarnings(
                    "always", category=cat, message=mess)
            else:
                module_regex = mod.__name__.replace('.', r'\.') + '$'
                warnings.filterwarnings(
                    "always", category=cat, message=mess,
                    module=module_regex)
                self._tmp_modules.add(mod)
        warnings.showwarning = self._showwarning
        self._clear_registries()

        return self
Example #23
Source File: utils.py    From predictive-maintenance-using-machine-learning with Apache License 2.0 5 votes vote down vote up 
def __exit__(self, *exc_info):
        warnings.showwarning = self._orig_show
        warnings.filters = self._filters
        self._clear_registries()
        self._entered = False
        del self._orig_show
        del self._filters
Example #24
Source File: deprecation.py    From Mastering-Elasticsearch-7.0 with MIT License 5 votes vote down vote up 
def install_warning_logger():
    # type: () -> None
    # Enable our Deprecation Warnings
    warnings.simplefilter("default", PipDeprecationWarning, append=True)

    global _original_showwarning

    if _original_showwarning is None:
        _original_showwarning = warnings.showwarning
        warnings.showwarning = _showwarning
Example #25
Source File: utils.py    From Mastering-Elasticsearch-7.0 with MIT License 5 votes vote down vote up 
def __exit__(self, *exc_info):
        warnings.showwarning = self._orig_show
        warnings.filters = self._filters
        self._clear_registries()
        self._entered = False
        del self._orig_show
        del self._filters
Example #26
Source File: __init__.py    From Fluid-Designer with GNU General Public License v3.0 5 votes vote down vote up 
def captureWarnings(capture):
    """
    If capture is true, redirect all warnings to the logging package.
    If capture is False, ensure that warnings are not redirected to logging
    but to their original destinations.
    """
    global _warnings_showwarning
    if capture:
        if _warnings_showwarning is None:
            _warnings_showwarning = warnings.showwarning
            warnings.showwarning = _showwarning
    else:
        if _warnings_showwarning is not None:
            warnings.showwarning = _warnings_showwarning
            _warnings_showwarning = None
Example #27
Source File: utils.py    From Mastering-Elasticsearch-7.0 with MIT License 5 votes vote down vote up 
def __enter__(self):
        if self._entered:
            raise RuntimeError("cannot enter suppress_warnings twice.")

        self._orig_show = warnings.showwarning
        self._filters = warnings.filters
        warnings.filters = self._filters[:]

        self._entered = True
        self._tmp_suppressions = []
        self._tmp_modules = set()
        self._forwarded = set()

        self.log = []  # reset global log (no need to keep same list)

        for cat, mess, _, mod, log in self._suppressions:
            if log is not None:
                del log[:]  # clear the log
            if mod is None:
                warnings.filterwarnings(
                    "always", category=cat, message=mess)
            else:
                module_regex = mod.__name__.replace('.', r'\.') + '$'
                warnings.filterwarnings(
                    "always", category=cat, message=mess,
                    module=module_regex)
                self._tmp_modules.add(mod)
        warnings.showwarning = self._showwarning
        self._clear_registries()

        return self
Example #28
Source File: deprecation.py    From Mastering-Elasticsearch-7.0 with MIT License 5 votes vote down vote up 
def install_warning_logger():
    # type: () -> None
    # Enable our Deprecation Warnings
    warnings.simplefilter("default", PipDeprecationWarning, append=True)

    global _original_showwarning

    if _original_showwarning is None:
        _original_showwarning = warnings.showwarning
        warnings.showwarning = _showwarning
Example #29
Source File: PyShell.py    From oss-ftp with MIT License 5 votes vote down vote up 
def capture_warnings(capture):
    "Replace warning.showwarning with idle_showwarning, or reverse."

    global _warnings_showwarning
    if capture:
        if _warnings_showwarning is None:
            _warnings_showwarning = warnings.showwarning
            warnings.showwarning = idle_showwarning
    else:
        if _warnings_showwarning is not None:
            warnings.showwarning = _warnings_showwarning
            _warnings_showwarning = None
Example #30
Source File: test_log.py    From Safejumper-for-Desktop with GNU General Public License v2.0 5 votes vote down vote up 
def test_warningToFile(self):
        """
        L{twisted.python.log.showwarning} passes warnings with an explicit file
        target on to the underlying Python warning system.
        """
        message = "another unique message"
        category = FakeWarning
        filename = "warning-filename.py"
        lineno = 31

        output = StringIO()
        log.showwarning(message, category, filename, lineno, file=output)

        self.assertEqual(
            output.getvalue(),
            warnings.formatwarning(message, category, filename, lineno))

        # In Python 2.6 and higher, warnings.showwarning accepts
        # a "line" argument which gives the source line the warning
        # message is to include.
        line = "hello world"
        output = StringIO()
        log.showwarning(message, category, filename, lineno, file=output,
                        line=line)

        self.assertEqual(
            output.getvalue(),
            warnings.formatwarning(message, category, filename, lineno,
                                   line))