Python cbook.MatplotlibDeprecationWarning方法代码示例

# 需要导入模块: from matplotlib import cbook [as 别名]
# 或者: from matplotlib.cbook import MatplotlibDeprecationWarning [as 别名]
def setup():
    # The baseline images are created in this locale, so we should use
    # it during all of the tests.

    try:
        locale.setlocale(locale.LC_ALL, 'en_US.UTF-8')
    except locale.Error:
        try:
            locale.setlocale(locale.LC_ALL, 'English_United States.1252')
        except locale.Error:
            warnings.warn(
                "Could not set locale to English/United States. "
                "Some date-related tests may fail.")

    mpl.use('Agg', force=True, warn=False)  # use Agg backend for these tests

    with warnings.catch_warnings():
        warnings.simplefilter("ignore", MatplotlibDeprecationWarning)
        mpl.rcdefaults()  # Start with all defaults

    # These settings *must* be hardcoded for running the comparison tests and
    # are not necessarily the default values as specified in rcsetup.py.
    set_font_settings_for_testing()
    set_reproducibility_for_testing() 

# 需要导入模块: from matplotlib import cbook [as 别名]
# 或者: from matplotlib.cbook import MatplotlibDeprecationWarning [as 别名]
def test_cycle_reset():
    fig, ax = plt.subplots()

    # Can't really test a reset because only a cycle object is stored
    # but we can test the first item of the cycle.
    prop = next(ax._get_lines.prop_cycler)
    ax.set_prop_cycle(linewidth=[10, 9, 4])
    assert prop != next(ax._get_lines.prop_cycler)
    ax.set_prop_cycle(None)
    got = next(ax._get_lines.prop_cycler)
    assert prop == got

    fig, ax = plt.subplots()
    # Need to double-check the old set/get_color_cycle(), too
    with warnings.catch_warnings():
        warnings.simplefilter("ignore", MatplotlibDeprecationWarning)
        prop = next(ax._get_lines.prop_cycler)
        ax.set_color_cycle(['c', 'm', 'y', 'k'])
        assert prop != next(ax._get_lines.prop_cycler)
        ax.set_color_cycle(None)
        got = next(ax._get_lines.prop_cycler)
        assert prop == got 

# 需要导入模块: from matplotlib import cbook [as 别名]
# 或者: from matplotlib.cbook import MatplotlibDeprecationWarning [as 别名]
def mpl_test_settings(request):
    from matplotlib.testing.decorators import _cleanup_cm

    with _cleanup_cm():

        backend = None
        backend_marker = request.keywords.get('backend')
        if backend_marker is not None:
            assert len(backend_marker.args) == 1, \
                "Marker 'backend' must specify 1 backend."
            backend = backend_marker.args[0]
            prev_backend = matplotlib.get_backend()

        style = '_classic_test'  # Default of cleanup and image_comparison too.
        style_marker = request.keywords.get('style')
        if style_marker is not None:
            assert len(style_marker.args) == 1, \
                "Marker 'style' must specify 1 style."
            style = style_marker.args[0]

        matplotlib.testing.setup()
        if backend is not None:
            # This import must come after setup() so it doesn't load the
            # default backend prematurely.
            import matplotlib.pyplot as plt
            plt.switch_backend(backend)
        with warnings.catch_warnings():
            warnings.simplefilter("ignore", MatplotlibDeprecationWarning)
            matplotlib.style.use(style)
        try:
            yield
        finally:
            if backend is not None:
                plt.switch_backend(prev_backend) 

# 需要导入模块: from matplotlib import cbook [as 别名]
# 或者: from matplotlib.cbook import MatplotlibDeprecationWarning [as 别名]
def test_Bug_2543():
    # Test that it possible to add all values to itself / deepcopy
    # This was not possible because validate_bool_maybe_none did not
    # accept None as an argument.
    # https://github.com/matplotlib/matplotlib/issues/2543
    # We filter warnings at this stage since a number of them are raised
    # for deprecated rcparams as they should. We don't want these in the
    # printed in the test suite.
    with warnings.catch_warnings():
        warnings.filterwarnings('ignore',
                                category=MatplotlibDeprecationWarning)
        with mpl.rc_context():
            _copy = mpl.rcParams.copy()
            for key in _copy:
                mpl.rcParams[key] = _copy[key]
            mpl.rcParams['text.dvipnghack'] = None
        with mpl.rc_context():
            _deep_copy = copy.deepcopy(mpl.rcParams)
        # real test is that this does not raise
        assert validate_bool_maybe_none(None) is None
        assert validate_bool_maybe_none("none") is None

    with pytest.raises(ValueError):
        validate_bool_maybe_none("blah")
    with pytest.raises(ValueError):
        validate_bool(None)
    with pytest.raises(ValueError):
        with mpl.rc_context():
            mpl.rcParams['svg.fonttype'] = True 

# 需要导入模块: from matplotlib import cbook [as 别名]
# 或者: from matplotlib.cbook import MatplotlibDeprecationWarning [as 别名]
def use(style):
    """Use matplotlib style settings from a style specification.

    The style name of 'default' is reserved for reverting back to
    the default style settings.

    Parameters
    ----------
    style : str, dict, or list
        A style specification. Valid options are:

        +------+-------------------------------------------------------------+
        | str  | The name of a style or a path/URL to a style file. For a    |
        |      | list of available style names, see `style.available`.       |
        +------+-------------------------------------------------------------+
        | dict | Dictionary with valid key/value pairs for                   |
        |      | `matplotlib.rcParams`.                                      |
        +------+-------------------------------------------------------------+
        | list | A list of style specifiers (str or dict) applied from first |
        |      | to last in the list.                                        |
        +------+-------------------------------------------------------------+


    """
    style_alias = {'mpl20': 'default',
                   'mpl15': 'classic'}
    if isinstance(style, str) or hasattr(style, 'keys'):
        # If name is a single str or dict, make it a single element list.
        styles = [style]
    else:
        styles = style

    styles = (style_alias.get(s, s) if isinstance(s, str) else s
              for s in styles)
    for style in styles:
        if not isinstance(style, str):
            _apply_style(style)
        elif style == 'default':
            # Deprecation warnings were already handled when creating
            # rcParamsDefault, no need to reemit them here.
            with warnings.catch_warnings():
                warnings.simplefilter("ignore", MatplotlibDeprecationWarning)
                _apply_style(rcParamsDefault, warn=False)
        elif style in library:
            _apply_style(library[style])
        else:
            try:
                rc = rc_params_from_file(style, use_default_template=False)
                _apply_style(rc)
            except IOError:
                raise IOError(
                    "{!r} not found in the style library and input is not a "
                    "valid URL or path; see `style.available` for list of "
                    "available styles".format(style)) 

# 需要导入模块: from matplotlib import cbook [as 别名]
# 或者: from matplotlib.cbook import MatplotlibDeprecationWarning [as 别名]
def test_date_formatter_strftime():
    """
    Tests that DateFormatter matches datetime.strftime,
    check microseconds for years before 1900 for bug #3179
    as well as a few related issues for years before 1900.
    """
    def test_strftime_fields(dt):
        """For datetime object dt, check DateFormatter fields"""
        # Note: the last couple of %%s are to check multiple %s are handled
        # properly; %% should get replaced by %.
        formatter = mdates.DateFormatter("%w %d %m %y %Y %H %I %M %S %%%f %%x")
        # Compute date fields without using datetime.strftime,
        # since datetime.strftime does not work before year 1900
        formatted_date_str = (
            "{weekday} {day:02d} {month:02d} {year:02d} {full_year:04d} "
            "{hour24:02d} {hour12:02d} {minute:02d} {second:02d} "
            "%{microsecond:06d} %x"
            .format(
                weekday=str((dt.weekday() + 1) % 7),
                day=dt.day,
                month=dt.month,
                year=dt.year % 100,
                full_year=dt.year,
                hour24=dt.hour,
                hour12=((dt.hour-1) % 12) + 1,
                minute=dt.minute,
                second=dt.second,
                microsecond=dt.microsecond))
        with pytest.warns(MatplotlibDeprecationWarning):
            assert formatter.strftime(dt) == formatted_date_str

        try:
            # Test strftime("%x") with the current locale.
            import locale  # Might not exist on some platforms, such as Windows
            locale_formatter = mdates.DateFormatter("%x")
            locale_d_fmt = locale.nl_langinfo(locale.D_FMT)
            expanded_formatter = mdates.DateFormatter(locale_d_fmt)
            with pytest.warns(MatplotlibDeprecationWarning):
                assert locale_formatter.strftime(dt) == \
                    expanded_formatter.strftime(dt)
        except (ImportError, AttributeError):
            pass

    for year in range(1, 3000, 71):
        # Iterate through random set of years
        test_strftime_fields(datetime.datetime(year, 1, 1))
        test_strftime_fields(datetime.datetime(year, 2, 3, 4, 5, 6, 12345)) 

# 需要导入模块: from matplotlib import cbook [as 别名]
# 或者: from matplotlib.cbook import MatplotlibDeprecationWarning [as 别名]
def test_patch_str():
    """
    Check that patches have nice and working `str` representation.

    Note that the logic is that `__str__` is defined such that:
    str(eval(str(p))) == str(p)
    """
    p = mpatches.Circle(xy=(1, 2), radius=3)
    assert str(p) == 'Circle(xy=(1, 2), radius=3)'

    p = mpatches.Ellipse(xy=(1, 2), width=3, height=4, angle=5)
    assert str(p) == 'Ellipse(xy=(1, 2), width=3, height=4, angle=5)'

    p = mpatches.Rectangle(xy=(1, 2), width=3, height=4, angle=5)
    assert str(p) == 'Rectangle(xy=(1, 2), width=3, height=4, angle=5)'

    p = mpatches.Wedge(center=(1, 2), r=3, theta1=4, theta2=5, width=6)
    assert str(p) == 'Wedge(center=(1, 2), r=3, theta1=4, theta2=5, width=6)'

    p = mpatches.Arc(xy=(1, 2), width=3, height=4, angle=5, theta1=6, theta2=7)
    expected = 'Arc(xy=(1, 2), width=3, height=4, angle=5, theta1=6, theta2=7)'
    assert str(p) == expected

    p = mpatches.RegularPolygon((1, 2), 20, radius=5)
    assert str(p) == "RegularPolygon((1, 2), 20, radius=5, orientation=0)"

    p = mpatches.CirclePolygon(xy=(1, 2), radius=5, resolution=20)
    assert str(p) == "CirclePolygon((1, 2), radius=5, resolution=20)"

    p = mpatches.FancyBboxPatch((1, 2), width=3, height=4)
    assert str(p) == "FancyBboxPatch((1, 2), width=3, height=4)"

    # Further nice __str__ which cannot be `eval`uated:
    path_data = [([1, 2], mpath.Path.MOVETO), ([2, 2], mpath.Path.LINETO),
                 ([1, 2], mpath.Path.CLOSEPOLY)]
    p = mpatches.PathPatch(mpath.Path(*zip(*path_data)))
    assert str(p) == "PathPatch3((1, 2) ...)"

    data = [[1, 2], [2, 2], [1, 2]]
    p = mpatches.Polygon(data)
    assert str(p) == "Polygon3((1, 2) ...)"

    p = mpatches.FancyArrowPatch(path=mpath.Path(*zip(*path_data)))
    assert str(p)[:27] == "FancyArrowPatch(Path(array("

    p = mpatches.FancyArrowPatch((1, 2), (3, 4))
    assert str(p) == "FancyArrowPatch((1, 2)->(3, 4))"

    p = mpatches.ConnectionPatch((1, 2), (3, 4), 'data')
    assert str(p) == "ConnectionPatch((1, 2), (3, 4))"

    s = mpatches.Shadow(p, 1, 1)
    assert str(s) == "Shadow(ConnectionPatch((1, 2), (3, 4)))"

    with pytest.warns(MatplotlibDeprecationWarning):
        p = mpatches.YAArrow(plt.gcf(), (1, 0), (2, 1), width=0.1)
        assert str(p) == "YAArrow()"

    # Not testing Arrow, FancyArrow here
    # because they seem to exist only for historical reasons.