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jason-neal / companion_simulations

Simulating combined host+companion spectra, and fitting to observed crires spectra.
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Scheduled monthly dependency update for March #101

Closed pyup-bot closed 2 years ago

pyup-bot commented 2 years ago

Update astropy from 3.2.3 to 5.0.1.

Changelog ### 5.0.1 ``` ================== Bug Fixes --------- astropy.coordinates ^^^^^^^^^^^^^^^^^^^ - Trying to create an instance of ``astropy.coordinates.Distance`` by providing both ``z`` and ``parallax`` now raises the expected ``ValueError``. [12531] - Fixed a bug where changing the wrap angle of the longitude component of a representation could raise a warning or error in certain situations. [12556] - ``astropy.coordinates.Distance`` constructor no longer ignores the ``unit`` keyword when ``parallax`` is provided. [12569] astropy.cosmology ^^^^^^^^^^^^^^^^^ - ``astropy.cosmology.utils.aszarr`` can now convert ``Column`` objects. [12525] - Reading a cosmology from an ECSV will load redshift and Hubble parameter units from the cosmology units module. [12636] astropy.io.fits ^^^^^^^^^^^^^^^ - Fix formatting issue in ``_dump_coldefs`` and add tests for ``tabledump`` and ``tableload`` convenience functions. [12526] astropy.io.misc ^^^^^^^^^^^^^^^ - YAML can now also represent quantities and arrays with structured dtype, as well as structured scalars based on ``np.void``. [12509] astropy.modeling ^^^^^^^^^^^^^^^^ - Fixes error when fitting multiplication or division based compound models where the sub-models have different output units. [12475] - Bugfix for incorrectly initialized and filled ``parameters`` data for ``Spline1D`` model. [12523] - Bugfix for ``keyerror`` thrown by ``Model.input_units_equivalencies`` when used on ``fix_inputs`` models which have no set unit equivalencies. [12597] astropy.table ^^^^^^^^^^^^^ - ``astropy.table.Table.keep_columns()`` and ``astropy.table.Table.remove_columns()`` now work with generators of column names. [12529] - Avoid duplicate storage of info in serialized columns if the column used to serialize already can hold that information. [12607] astropy.timeseries ^^^^^^^^^^^^^^^^^^ - Fixed edge case bugs which emerged when using ``aggregate_downsample`` with custom bins. [12527] astropy.units ^^^^^^^^^^^^^ - Structured units can be serialized to/from yaml. [12492] - Fix bad typing problems by removing interaction with ``NDArray.__class_getitem__``. [12511] - Ensure that ``Quantity.to_string(format='latex')`` properly typesets exponents also when ``u.quantity.conf.latex_array_threshold = -1`` (i.e., when the threshold is taken from numpy). [12573] - Structured units can now be copied with ``copy.copy`` and ``copy.deepcopy`` and also pickled and unpicked also for ``protocol`` >= 2. This does not work for big-endian architecture with older ``numpy<1.21.1``. [12583] astropy.utils ^^^^^^^^^^^^^ - Ensure that a ``Masked`` instance can be used to initialize (or viewed as) a ``numpy.ma.Maskedarray``. [12482] - Ensure ``Masked`` also works with numpy >=1.22, which has a keyword argument name change for ``np.quantile``. [12511] - ``astropy.utils.iers.LeapSeconds.auto_open()`` no longer emits unnecessary warnings when ``astropy.utils.iers.conf.auto_max_age`` is set to ``None``. [12713] ``` ### 5.0 ``` ================ New Features ------------ astropy.convolution ^^^^^^^^^^^^^^^^^^^ - Added dealiasing support to ``convolve_fft``. [11495] astropy.coordinates ^^^^^^^^^^^^^^^^^^^ - Added missing coordinate transformations where the starting and ending frames are the same (i.e., loopback transformations). [10909] - Allow negation, multiplication and division also of representations that include a differential (e.g., ``SphericalRepresentation`` with a ``SphericalCosLatDifferential``). For all operations, the outcome is equivalent to transforming the representation and differential to cartesian, then operating on those, and transforming back to the original representation (except for ``UnitSphericalRepresentation``, which will return a ``SphericalRepresentation`` if there is a scale change). [11470] - ``RadialRepresentation.transform`` can work with a multiplication matrix only. All other matrices still raise an exception. [11576] - ``transform`` methods are added to ``BaseDifferential`` and ``CartesianDifferential``. All transform methods on Representations now delegate transforming differentials to the differential objects. [11654] - Adds new ``HADec`` built-in frame with transformations to/from ``ICRS`` and ``CIRS``. This frame complements ``AltAz`` to give observed coordinates (hour angle and declination) in the ``ITRS`` for an equatorially mounted telescope. [11676] - ``SkyCoord`` objects now have a ``to_table()`` method, which allows them to be converted to a ``QTable``. [11743] astropy.cosmology ^^^^^^^^^^^^^^^^^ - Cosmologies now store metadata in a mutable parameter ``meta``. The initialization arguments ``name`` and ``meta`` are keyword-only. [11542] - A new unit, ``redshift``, is defined. It is a dimensionless unit to distinguish redshift quantities from other non-redshift values. For compatibility with dimensionless quantities the equivalency ``dimensionless_redshift`` is added. This equivalency is enabled by default. [11786] - Add equality operator for comparing Cosmology instances. Comparison is done on all immutable fields (this excludes 'meta'). Now the following will work: .. code-block:: python >>> from astropy.cosmology import Planck13, Planck18 >>> Planck13 == Planck18 False >>> Planck18 == Planck18 True [11813] - Added ``read/write`` methods to Cosmology using the Unified I/O registry. Now custom file format readers, writers, and format-identifier functions can be registered to read, write, and identify, respectively, Cosmology objects. Details are discussed in an addition to the docs. [11948] - Added ``to_format/from_format`` methods to Cosmology using the Unified I/O registry. Now custom format converters and format-identifier functions can be registered to transform Cosmology objects. The transformation between Cosmology and dictionaries is pre-registered. Details are discussed in an addition to the docs. [11998] - Added units module for defining and collecting cosmological units and equivalencies. [12092] - Flat cosmologies are now set by a mixin class, ``FlatCosmologyMixin`` and its FLRW-specific subclass ``FlatFLRWMixin``. All ``FlatCosmologyMixin`` are flat, but not all flat cosmologies are instances of ``FlatCosmologyMixin``. As example, ``LambdaCDM`` **may** be flat (for the a specific set of parameter values), but ``FlatLambdaCDM`` **will** be flat. Cosmology parameters are now descriptors. When accessed from a class they transparently stores information, like the units and accepted equivalencies. On a cosmology instance, the descriptor will return the parameter value. Parameters can have custom ``getter`` methods. Cosmological equality is refactored to check Parameters (and the name) A new method, ``is_equivalent``, is added to check Cosmology equivalence, so a ``FlatLambdaCDM`` and flat ``LambdaCDM`` are equivalent. [12136] - Replaced ``z = np.asarray(z)`` with ``z = u.Quantity(z, u.dimensionless_unscaled).value`` in Cosmology methods. Input of values with incorrect units raises a UnitConversionError or TypeError. [12145] - Cosmology Parameters allow for custom value setters. Values can be set once, but will error if set a second time. If not specified, the default setter is used, which will assign units using the Parameters ``units`` and ``equivalencies`` (if present). Alternate setters may be registered with Parameter to be specified by a str, not a decorator on the Cosmology. [12190] - Cosmology instance conversion to dict now accepts keyword argument ``cls`` to determine dict type, e.g. ``OrderedDict``. [12209] - A new equivalency is added between redshift and the Hubble parameter and values with units of little-h. This equivalency is also available in the catch-all equivalency ``with_redshift``. [12211] - A new equivalency is added between redshift and distance -- comoving, lookback, and luminosity. This equivalency is also available in the catch-all equivalency ``with_redshift``. [12212] - Register Astropy Table into Cosmology's ``to/from_format`` I/O, allowing a Cosmology instance to be parsed from or converted to a Table instance. Also adds the ``__astropy_table__`` method allowing ``Table(cosmology)``. [12213] - The WMAP1 and WMAP3 are accessible as builtin cosmologies. [12248] - Register Astropy Model into Cosmology's ``to/from_format`` I/O, allowing a Cosmology instance to be parsed from or converted to a Model instance. [12269] - Register an ECSV reader and writer into Cosmology's I/O, allowing a Cosmology instance to be read from from or written to an ECSV file. [12321] astropy.io.ascii ^^^^^^^^^^^^^^^^ - Added new way to specify the dtype for tables that are read: ``converters`` can specify column names with wildcards. [11892] - Added a new ``astropy.io.ascii.Mrt`` class to write tables in the American Astronomical Society Machine-Readable Table format, including documentation and tests for the same. [11897, 12301, 12302] - When writing, the input data are no longer copied, improving performance. Metadata that might be changed, such as format and serialization information, is copied, hence users can continue to count on no changes being made to the input data. [11919] astropy.io.misc ^^^^^^^^^^^^^^^ - Add Parquet serialization of Tables with pyarrow, including metadata support and columnar access. [12215] astropy.modeling ^^^^^^^^^^^^^^^^ - Added fittable spline models to ``modeling``. [11634] - Extensive refactor of ``BoundingBox`` for better usability and maintainability. [11930] - Added ``CompoundBoundingBox`` feature to ``~astropy.modeling``, which allows more flexibility in defining bounding boxes for models that are applied to images with many slices. [11942] - Improved parameter support for ``astropy.modeling.core.custom_model`` created models. [11984] - Added the following trigonometric models and linked them to their appropriate inverse models: * ``Cosine1D`` [12158] * ``Tangent1D`` * ``ArcSine1D`` * ``ArcCosine1D`` * ``ArcTangent1D`` [12185] astropy.table ^^^^^^^^^^^^^ - Added a new method ``Table.update()`` which does a dictionary-style update of a ``Table`` by adding or replacing columns. [11904] - Masked quantities are now fully supported in tables. This includes ``QTable`` automatically converting ``MaskedColumn`` instances to ``MaskedQuantity``, and ``Table`` doing the reverse. [11914] - Added new keyword arguments ``keys_left`` and ``keys_right`` to the table ``join`` function to support joining tables on key columns with different names. In addition the new keywords can accept a list of column-like objects which are used as the match keys. This allows joining on arbitrary data which are not part of the tables being joined. [11954] - Formatting of any numerical values in the output of ``Table.info()`` and ``Column.info()`` has been improved. [12022] - It is now possible to add dask arrays as columns in tables and have them remain as dask arrays rather than be converted to Numpy arrays. [12219] - Added a new registry for mixin handlers, which can be used to automatically convert array-like Python objects into mixin columns when assigned to a table column. [12219] astropy.time ^^^^^^^^^^^^ - Adds a new method ``earth_rotation_angle`` to calculate the Local Earth Rotation Angle. Also adjusts Local Sidereal Time for the Terrestrial Intermediate Origin (``TIO``) and adds a rigorous correction for polar motion. The ``TIO`` adjustment is approximately 3 microseconds per century from ``J2000`` and the polar motion correction is at most about +/-50 nanoseconds. For models ``IAU1982`` and ``IAU1994``, no such adjustments are made as they pre-date the TIO concept. [11680] astropy.timeseries ^^^^^^^^^^^^^^^^^^ - A custom binning scheme is now available in ``aggregate_downsample``. It allows ``time_bin_start`` and ``time_bin_size`` to be arrays, and adds an optional ``time_bin_end``. This scheme mirrors the API for ``BinnedTimeSeries``. [11266] astropy.units ^^^^^^^^^^^^^ - ``Quantity`` gains a ``__class_getitem__`` to create unit-aware annotations with the syntax ``Quantity[unit or physical_type, shape, numpy.dtype]``. If the python version is 3.9+ or ``typing_extensions`` is installed, these are valid static type annotations. [10662] - Each physical type is added to ``astropy.units.physical`` (e.g., ``physical.length`` or ``physical.electrical_charge_ESU``). The attribute-accessible names (underscored, without parenthesis) also work with ``astropy.units.physical.get_physical_type``. [11691] - It is now possible to have quantities based on structured arrays in which the unit has matching structure, giving each field its own unit, using units constructed like ``Unit('AU,AU/day')``. [11775] - The milli- prefix has been added to ``astropy.units.Angstrom``. [11788] - Added attributes ``base``, ``coords``, and ``index`` and method ``copy()`` to ``QuantityIterator`` to match ``numpy.ndarray.flatiter``. [11796] - Added "angular frequency" and "angular velocity" as aliases for the "angular speed" physical type. [11865] - Add light-second to units of length [12128] astropy.utils ^^^^^^^^^^^^^ - The ``astropy.utils.deprecated_renamed_argument()`` decorator now supports custom warning messages. [12305] - The NaN-aware numpy functions such as ``np.nansum`` now work on Masked arrays, with masked values being treated as NaN, but without raising warnings or exceptions. [12454] astropy.visualization ^^^^^^^^^^^^^^^^^^^^^ - Added a feature so that SphericalCircle will accept center parameter as a SkyCoord object. [11790] astropy.wcs ^^^^^^^^^^^ - ``astropy.wcs.utils.obsgeo_to_frame`` has been added to convert the obsgeo coordinate array on ``astropy.wcs.WCS`` objects to an ``ITRS`` coordinate frame instance. [11716] - Updated bundled ``WCSLIB`` to version 7.7 with several bugfixes. [12034] API Changes ----------- astropy.config ^^^^^^^^^^^^^^ - ``update_default_config`` and ``ConfigurationMissingWarning`` are deprecated. [11502] astropy.constants ^^^^^^^^^^^^^^^^^ - Removed deprecated ``astropy.constants.set_enabled_constants`` context manager. [12105] astropy.coordinates ^^^^^^^^^^^^^^^^^^^ - Positions for the Moon using the 'builtin' ephemeris now use the new ``erfa.moon98`` function instead of our own implementation of the Meeus algorithm. As this also corrects a misunderstanding of the frame returned by the Meeus, this improves the agreement with the JPL ephemeris from about 30 to about 6 km rms. [11753] - Removed deprecated ``representation`` attribute from ``astropy.coordinates.BaseCoordinateFrame`` class. [12257] - ``SpectralQuantity`` and ``SpectralCoord`` ``.to_value`` method can now be called without ``unit`` argument in order to maintain a consistent interface with ``Quantity.to_value`` [12440] astropy.cosmology ^^^^^^^^^^^^^^^^^ - ``z_at_value`` now works with arrays for all arguments (except ``func``, ``verbose``, and ``method``). Consequently, ``coordinates.Distance.z`` can be used when Distance is an array. [11778] - Remove deprecation warning and error remapping in ``Cosmology.clone``. Now unknown arguments will raise a ``TypeError``, not an ``AttributeError``. [11785] - The ``read/write`` and ``to/from_format`` Unified I/O registries are separated and apply only to ``Cosmology``. [12015] - Cosmology parameters in ``cosmology.parameters.py`` now have units, where applicable. [12116] - The function ``astropy.cosmology.utils.inf_like()`` is deprecated. [12175] - The function ``astropy.cosmology.utils.vectorize_if_needed()`` is deprecated. A new function ``astropy.cosmology.utils.vectorize_redshift_method()`` is added as replacement. [12176] - Cosmology base class constructor now only accepts arguments ``name`` and ``meta``. Subclasses should add relevant arguments and not pass them to the base class. [12191] astropy.io ^^^^^^^^^^ - When ``astropy`` raises an ``OSError`` because a file it was told to write already exists, the error message now always suggests the use of the ``overwrite=True`` argument. The wording is now consistent for all I/O formats. [12179] astropy.io.ascii ^^^^^^^^^^^^^^^^ - Removed deprecated ``overwrite=None`` option for ``astropy.io.ascii.ui.write()``. Overwriting existing files now only happens if ``overwrite=True``. [12171] astropy.io.fits ^^^^^^^^^^^^^^^ - The internal class _CardAccessor is no longer registered as a subclass of the Sequence or Mapping ABCs. [11923] - The deprecated ``clobber`` argument will be removed from the ``astropy.io.fits`` functions in version 5.1, and the deprecation warnings now announce that too. [12311] astropy.io.registry ^^^^^^^^^^^^^^^^^^^ - The ``write`` function now is allowed to return possible content results, which means that custom writers could, for example, create and return an instance of some container class rather than a file on disk. [11916] - The registry functions are refactored into a class-based system. New Read-only, write-only, and read/write registries can be created. All functions accept a new argument ``registry``, which if not specified, defaults to the global default registry. [12015] astropy.io.votable ^^^^^^^^^^^^^^^^^^ - Deprecated the ``pedantic`` keyword argument in the ``astropy.io.votable.table.parse`` function and the corresponding configuration setting. It has been replaced by the ``verify`` option. [12129] astropy.modeling ^^^^^^^^^^^^^^^^ - Refactored how ``astropy.modeling.Model`` handles model evaluation in order to better organize the code. [11931] - Removed the following deprecated modeling features: ``astropy.modeling.utils.ExpressionTree`` class, ``astropy.modeling.functional_models.MexicanHat1D`` model, ``astropy.modeling.functional_models.MexicanHat2D`` model, ``astropy.modeling.core.Model.inputs`` setting in model initialize, ``astropy.modeling.core.CompoundModel.inverse`` setting in model initialize, and ``astropy.modeling.core.CompoundModel.both_inverses_exist()`` method. [11978] - Deprecated the ``AliasDict`` class in ``modeling.utils``. [12411] astropy.nddata ^^^^^^^^^^^^^^ - Removed ``block_reduce`` and ``block_replicate`` functions from ``nddata.utils``. These deprecated functions in ``nddata.utils`` were moved to ``nddata.blocks``. [12288] astropy.stats ^^^^^^^^^^^^^ - Removed the following deprecated features from ``astropy.stats``: * ``conf`` argument for ``funcs.binom_conf_interval()`` and ``funcs.binned_binom_proportion()``, * ``conflevel`` argument for ``funcs.poisson_conf_interval()``, and * ``conf_lvl`` argument for ``jackknife.jackknife_stats()``. [12200] astropy.table ^^^^^^^^^^^^^ - Printing a ``Table`` now shows the qualified class name of mixin columns in the dtype header row instead of "object". This applies to all the ``Table`` formatted output methods whenever ``show_dtype=True`` is selected. [11660] - The 'overwrite' argument has been added to the jsviewer table writer. Overwriting an existing file requires 'overwrite' to be True. [11853] - The 'overwrite' argument has been added to the pandas table writers. Overwriting an existing file requires 'overwrite' to be True. [11854] - The table ``join`` function now accepts only the first four arguments ``left``, ``right``, ``keys``, and ``join_type`` as positional arguments. All other arguments must be supplied as keyword arguments. [11954] - Adding a dask array to a Table will no longer convert that dask to a Numpy array, so accessing t['dask_column'] will now return a dask array instead of a Numpy array. [12219] astropy.time ^^^^^^^^^^^^ - Along with the new method ``earth_rotation_angle``, ``sidereal_time`` now accepts an ``EarthLocation`` as the ``longitude`` argument. [11680] astropy.units ^^^^^^^^^^^^^ - Unit ``littleh`` and equivalency ``with_H0`` have been moved to the ``cosmology`` module and are deprecated from ``astropy.units``. [12092] astropy.utils ^^^^^^^^^^^^^ - ``astropy.utils.introspection.minversion()`` now uses ``importlib.metadata.version()``. Therefore, its ``version_path`` keyword is no longer used and deprecated. This keyword will be removed in a future release. [11714] - Updated ``utils.console.Spinner`` to better resemble the API of ``utils.console.ProgressBar``, including an ``update()`` method and iterator support. [11772] - Removed deprecated ``check_hashes`` in ``check_download_cache()``. The function also no longer returns anything. [12293] - Removed unused ``download_cache_lock_attempts`` configuration item in ``astropy.utils.data``. Deprecation was not possible. [12293] - Removed deprecated ``hexdigest`` keyword from ``import_file_to_cache()``. [12293] - Setting ``remote_timeout`` configuration item in ``astropy.utils.data`` to 0 will no longer disable download from the Internet; Set ``allow_internet`` configuration item to ``False`` instead. [12293] astropy.visualization ^^^^^^^^^^^^^^^^^^^^^ - Removed deprecated ``imshow_only_kwargs`` keyword from ``imshow_norm``. [12290] astropy.wcs ^^^^^^^^^^^ - Move complex logic from ``HighLevelWCSMixin.pixel_to_world`` and ``HighLevelWCSMixin.world_to_pixel`` into the helper functions ``astropy.wcs.wcsapi.high_level_api.high_level_objects_to_values`` and ``astropy.wcs.wcsapi.high_level_api.values_to_high_level_objects`` to allow reuse in other places. [11950] Bug Fixes --------- astropy.config ^^^^^^^^^^^^^^ - ``generate_config`` no longer outputs wrong syntax for list type. [12037] astropy.constants ^^^^^^^^^^^^^^^^^ - Fixed a bug where an older constants version cannot be set directly after astropy import. [12084] astropy.convolution ^^^^^^^^^^^^^^^^^^^ - Passing an ``array`` argument for any Kernel1D or Kernel2D subclasses (with the exception of CustomKernel) will now raise a ``TypeError``. [11969] astropy.coordinates ^^^^^^^^^^^^^^^^^^^ - If a ``Table`` containing a ``SkyCoord`` object as a column is written to a FITS, ECSV or HDF5 file then any velocity information that might be present will be retained. [11750] - The output of ``SkyCoord.apply_space_motion()`` now always has the same differential type as the ``SkyCoord`` itself. [11932] - Fixed bug where Angle, Latitude and Longitude with NaN values could not be printed. [11943] - Fixed a bug with the transformation from ``PrecessedGeocentric`` to ``GCRS`` where changes in ``obstime``, ``obsgeoloc``, or ``obsgeovel`` were ignored. This bug would also affect loopback transformations from one ``PrecessedGeocentric`` frame to another ``PrecessedGeocentric`` frame. [12152] - Fixed a bug with the transformations between ``TEME`` and ``ITRS`` or between ``TEME`` and itself where a change in ``obstime`` was ignored. [12152] - Avoid unnecessary transforms through CIRS for AltAz and HADec and use ICRS as intermediate frame for these transformations instead. [12203] - Fixed a bug where instantiating a representation with a longitude component could mutate input provided for that component even when copying is specified. [12307] - Wrapping an ``Angle`` array will now ignore NaN values instead of attempting to wrap them, which would produce unexpected warnings/errors when working with coordinates and representations due to internal broadcasting. [12317] astropy.cosmology ^^^^^^^^^^^^^^^^^ - Dictionaries for in-built cosmology realizations are not altered by creating the realization and are also made immutable. [12278] astropy.io.fits ^^^^^^^^^^^^^^^ - Prevent zero-byte writes for FITS binary tables to speed up writes on the Lustre filesystem. [11955] - Enable ``json.dump`` for FITS_rec with variable length (VLF) arrays. [11957] - Add support for reading and writing int8 images [11996] - Ensure header passed to ``astropy.io.fits.CompImageHDU`` does not need to contain standard cards that can be automatically generated, such as ``BITPIX`` and ``NAXIS``. [12061] - Fixed a bug where ``astropy.io.fits.HDUDiff`` would ignore the ``ignore_blank_cards`` keyword argument. [12122] - Open uncompressed file even if extension says it's compressed [12135] - Fix the computation of the DATASUM in a ``CompImageHDU`` when the data is >1D. [12138] - Reading files where the SIMPLE card is present but with an invalid format now issues a warning instead of raising an exception [12234] - Convert UNDEFINED to None when iterating over card values. [12310] astropy.io.misc ^^^^^^^^^^^^^^^ - Update ASDF tag versions in ExtensionType subclasses to match ASDF Standard 1.5.0. [11986] - Fix ASDF serialization of model inputs and outputs and add relevant assertion to test helper. [12381] - Fix bug preventing ASDF serialization of bounding box for models with only one input. [12385] astropy.io.votable ^^^^^^^^^^^^^^^^^^ - Now accepting UCDs containing phot.color. [11982] astropy.modeling ^^^^^^^^^^^^^^^^ - Added ``Parameter`` descriptions to the implemented models which were missing. [11232] - The ``separable`` property is now correctly set on models constructed with ``astropy.modeling.custom_model``. [11744] - Minor bugfixes and improvements to modeling including the following: * Fixed typos and clarified several errors and their messages throughout modeling. * Removed incorrect try/except blocks around scipy code in ``convolution.py`` and ``functional_models.py``. * Fixed ``Ring2D`` model's init to properly accept all combinations of ``r_in``, ``r_out``, and ``width``. * Fixed bug in ``tau`` validator for the ``Logarithmic1D`` and ``Exponential1D`` models when using them as model sets. * Fixed ``copy`` method for ``Parameter`` in order to prevent an automatic ``KeyError``, and fixed ``bool`` for ``Parameter`` so that it functions with vector values. * Removed unreachable code from ``Parameter``, the ``_Tabular`` model, and the ``Drude1D`` model. * Fixed validators in ``Drude1D`` model so that it functions in a model set. * Removed duplicated code from ``polynomial.py`` for handing of ``domain`` and ``window``. * Fixed the ``Pix2Sky_HEALPixPolar`` and ``Sky2Pix_HEALPixPolar`` modes so that their ``evaluate`` and ``inverse`` methods actually work without raising an error. [12232] astropy.nddata ^^^^^^^^^^^^^^ - Ensure that the ``wcs=`` argument to ``NDData`` is always parsed into a high level WCS object. [11985] astropy.stats ^^^^^^^^^^^^^ - Fixed a bug in sigma clipping where the bounds would not be returned for completely empty or masked data. [11994] - Fixed a bug in ``biweight_midvariance`` and ``biweight_scale`` where output data units would be dropped for constant data and where the result was a scalar NaN. [12146] astropy.table ^^^^^^^^^^^^^ - Ensured that ``MaskedColumn.info`` is propagated in all cases, so that when tables are sliced, writing will still be as requested on ``info.serialize_method``. [11917] - ``table.conf.replace_warnings`` and ``table.jsviewer.conf.css_urls`` configuration items now have correct ``'string_list'`` type. [12037] - Fixed an issue where initializing from a list of dict-like rows (Mappings) did not work unless the row values were instances of ``dict``. Now any object that is an instance of the more general ``collections.abc.Mapping`` will work. [12417] astropy.uncertainty ^^^^^^^^^^^^^^^^^^^ - Ensure that scalar ``QuantityDistribution`` unit conversion in ufuncs works properly again. [12471] astropy.units ^^^^^^^^^^^^^ - Add quantity support for ``scipy.special`` dimensionless functions erfinv, erfcinv, gammaln and loggamma. [10934] - ``VOUnit.to_string`` output is now compliant with IVOA VOUnits 1.0 standards. [11565] - Units initialization with unicode has been expanded to include strings such as 'M☉' and 'e⁻'. [11827] - Give a more informative ``NotImplementedError`` when trying to parse a unit using an output-only format such as 'unicode' or 'latex'. [11829] astropy.utils ^^^^^^^^^^^^^ - Fixed a bug in ``get_readable_fileobj`` that prevented the unified file read interface from closing ASCII files. [11809] - The function ``astropy.utils.decorators.deprecated_attribute()`` no longer ignores its ``message``, ``alternative``, and ``pending`` arguments. [12184] - Ensure that when taking the minimum or maximum of a ``Masked`` array, any masked NaN values are ignored. [12454] astropy.visualization ^^^^^^^^^^^^^^^^^^^^^ - The tick labelling for radians has been fixed to remove a redundant ``.0`` in the label for integer multiples of pi at 2pi and above. [12221] - Fix a bug where non-``astropy.wcs.WCS`` WCS instances were not accepted in ``WCSAxes.get_transform``. [12286] - Fix compatibility with Matplotlib 3.5 when using the ``grid_type='contours'`` mode for drawing grid lines. [12447] astropy.wcs ^^^^^^^^^^^ - Enabled ``SlicedLowLevelWCS.pixel_to_world_values`` to handle slices including non-``int`` integers, e.g. ``numpy.int64``. [11980] Other Changes and Additions --------------------------- - In docstrings, Sphinx cross-reference targets now use intersphinx, even if the target is an internal link (``link`` is now ``'astropy:link``). When built in Astropy these links are interpreted as internal links. When built in affiliate packages, the link target is set by the key 'astropy' in the intersphinx mapping. [11690] - Made PyYaml >= 3.13 a strict runtime dependency. [11903] - Minimum version of required Python is now 3.8. [11934] - Minimum version of required Scipy is now 1.3. [11934] - Minimum version of required Matplotlib is now 3.1. [11934] - Minimum version of required Numpy is now 1.18. [11935] - Fix deprecation warnings with Python 3.10 [11962] - Speed up ``minversion()`` in cases where a module with a ``__version__`` attribute is passed. [12174] - ``astropy`` now requires ``packaging``. [12199] - Updated the bundled CFITSIO library to 4.0.0. When compiling with an external library, version 3.35 or later is required. [12272] ``` ### 4.3.1 ``` ================== Bug Fixes --------- astropy.io.fits ^^^^^^^^^^^^^^^ - In ``fits.io.getdata`` do not fall back to first non-primary extension when user explicitly specifies an extension. [11860] - Ensure multidimensional masked columns round-trip properly to FITS. [11911] - Ensure masked times round-trip to FITS, even if multi-dimensional. [11913] - Raise ``ValueError`` if an ``np.float32`` NaN/Inf value is assigned to a header keyword. [11922] astropy.modeling ^^^^^^^^^^^^^^^^ - Fixed bug in ``fix_inputs`` handling of bounding boxes. [11908] astropy.table ^^^^^^^^^^^^^ - Fix an error when converting to pandas any ``Table`` subclass that automatically adds a table index when the table is created. An example is a binned ``TimeSeries`` table. [12018] astropy.units ^^^^^^^^^^^^^ - Ensure that unpickling quantities and units in new sessions does not change hashes and thus cause problems with (de)composition such as getting different answers from the ``.si`` attribute. [11879] - Fixed cannot import name imperial from astropy.units namespace. [11977] astropy.utils ^^^^^^^^^^^^^ - Ensure any ``.info`` on ``Masked`` instances is propagated correctly when viewing or slicing. As a consequence, ``MaskedQuantity`` can now be correctly written to, e.g., ECSV format with ``serialize_method='data_mask'``. [11910] ``` ### 4.3 ``` ================ New Features ------------ astropy.convolution ^^^^^^^^^^^^^^^^^^^ - Change padding sizes for ``fft_pad`` in ``convolve_fft`` from powers of 2 only to scipy-optimized numbers, applied separately to each dimension; yielding some performance gains and avoiding potential large memory impact for certain multi-dimensional inputs. [11533] astropy.coordinates ^^^^^^^^^^^^^^^^^^^ - Adds the ability to create topocentric ``CIRS`` frames. Using these, ``AltAz`` calculations are now accurate down to the milli-arcsecond level. [10994] - Adds a direct transformation from ``ICRS`` to ``AltAz`` frames. This provides a modest speedup of approximately 10 percent. [11079] - Adds new ``WGS84GeodeticRepresentation``, ``WGS72GeodeticRepresentation``, and ``GRS80GeodeticRepresentation``. These are mostly for use inside ``EarthLocation`` but can also be used to convert between geocentric (cartesian) and different geodetic representations directly. [11086] - ``SkyCoord.guess_from_table`` now also searches for differentials in the table. In addition, multiple regex matches can be resolved when they are exact component names, e.g. having both columns “dec” and “pm_dec” no longer errors and will be included in the SkyCoord. [11417] - All representations now have a ``transform`` method, which allows them to be transformed by a 3x3 matrix in a Cartesian basis. By default, transformations are routed through ``CartesianRepresentation``. ``SphericalRepresentation`` and ``PhysicssphericalRepresentation`` override this for speed and to prevent NaN leakage from the distance to the angular components. Also, the functions ``is_O3`` and ``is_rotation`` have been added to ``matrix_utities`` for checking whether a matrix is in the O(3) group or is a rotation (proper or improper), respectively. [11444] - Moved angle formatting and parsing utilities to ``astropy.coordinates.angle_formats``. Added new functionality to ``astropy.coordinates.angle_utilities`` for generating points on or in spherical surfaces, either randomly or on a grid. [11628] - Added a new method to ``SkyCoord``, ``spherical_offsets_by()``, which is the conceptual inverse of ``spherical_offsets_to()``: Given angular offsets in longitude and latitude, this method returns a new coordinate with the offsets applied. [11635] - Refactor conversions between ``GCRS`` and ``CIRS,TETE`` for better accuracy and substantially improved speed. [11069] - Also refactor ``EarthLocation.get_gcrs`` for an increase in performance of an order of magnitude, which enters as well in getting observed positions of planets using ``get_body``. [11073] - Refactored the usage of metaclasses in ``astropy.coordinates`` to instead use ``__init_subclass__`` where possible. [11090] - Removed duplicate calls to transform_to from match_to_catalog_sky and match_to_catalog_3d, improving their performance. [11449] - The new DE440 and DE440s ephemerides are now available via shortcuts 'de440' and 'de440s'. The DE 440s ephemeris will probably become the default ephemeris when chosing 'jpl' in 5.0. [11601] astropy.cosmology ^^^^^^^^^^^^^^^^^ - Cosmology parameter dictionaries now also specify the Cosmology class to which the parameters correspond. For example, the dictionary for ``astropy.cosmology.parameters.Planck18`` has the added key-value pair ("cosmology", "FlatLambdaCDM"). [11530] astropy.io.ascii ^^^^^^^^^^^^^^^^ - Added support for reading and writing ASCII tables in QDP (Quick and Dandy Plotter) format. [11256] - Added support for reading and writing multidimensional column data (masked and unmasked) to ECSV. Also added formal support for reading and writing object-type column data which can contain items consisting of lists, dicts, and basic scalar types. This can be used to store columns of variable-length arrays. Both of these features use JSON to convert the object to a string that is stored in the ECSV output. [11569, 11662, 11720] astropy.io.fits ^^^^^^^^^^^^^^^ - Added ``append`` keyword to append table objects to an existing FITS file [2632, 11149] - Check that the SIMPLE card is present when opening a file, to ensure that the file is a valid FITS file and raise a better error when opening a non FITS one. ``ignore_missing_simple`` can be used to skip this verification. [10895] - Expose ``Header.strip`` as a public method, to remove the most common structural keywords. [11174] - Enable the use of ``os.PathLike`` objects when dealing with (mainly FITS) files. [11580] astropy.io.registry ^^^^^^^^^^^^^^^^^^^ - Readers and writers can now set a priority, to assist with resolving which format to use. [11214] astropy.io.votable ^^^^^^^^^^^^^^^^^^ - Version 1.4 VOTables now use the VOUnit format specification. [11032] - When reading VOTables using the Unified File Read/Write Interface (i.e. using the ``Table.read()`` or ``QTable.read()`` functions) it is now possible to specify all keyword arguments that are valid for ``astropy.io.votable.table.parse()``. [11643] astropy.modeling ^^^^^^^^^^^^^^^^ - Added a state attribute to models to allow preventing the synching of constraint values from the constituent models. This synching can greatly slow down fitting if there are large numbers of fit parameters. model.sync_constraints = True means check constituent model constraints for compound models every time the constraint is accessed, False, do not. Fitters that support constraints will set this to False on the model copy and then set back to True when the fit is complete before returning. [11365] - The ``convolve_models_fft`` function implements model convolution so that one insures that the convolution remains consistent across multiple different inputs. [11456] astropy.nddata ^^^^^^^^^^^^^^ - Prevent unnecessary copies of the data during ``NDData`` arithmetic when units need to be added. [11107] - NDData str representations now show units, if present. [11553] astropy.stats ^^^^^^^^^^^^^ - Added the ability to specify stdfunc='mad_std' when doing sigma clipping, which will use a built-in function and lead to significant performance improvements if cenfunc is 'mean' or 'median'. [11664] - Significantly improved the performance of sigma clipping when cenfunc and stdfunc are passed as strings and the ``grow`` option is not used. [11219] - Improved performance of ``bayesian_blocks()`` by removing one ``np.log()`` call [11356] astropy.table ^^^^^^^^^^^^^ - Add table attributes to include or exclude columns from the output when printing a table. This functionality includes a context manager to include/exclude columns temporarily. [11190] - Improved the string representation of objects related to ``Table.indices`` so they now indicate the object type and relevant attributes. [11333] astropy.timeseries ^^^^^^^^^^^^^^^^^^ - An exception is raised when ``n_bins`` is passed as an argument while any of the parameters ``time_bin_start`` or ``time_bin_size`` is not scalar. [11463] astropy.units ^^^^^^^^^^^^^ - The ``physical_type`` attributes of each unit are now objects of the (new) ``astropy.units.physical.PhysicalType`` class instead of strings and the function ``astropy.units.physical.get_physical_type`` can now translate strings to these objects. [11204] - The function ``astropy.units.physical.def_physical_type`` was created to either define entirely new physical types, or to add more physical type names to an existing physical types. [11204] - ``PhysicalType``'s can be operated on using operations multiplication, division, and exponentiation are to facilitate dimensional analysis. [11204] - It is now possible to define aliases for units using ``astropy.units.set_enabled_aliases``. This can be used when reading files that have misspelled units. [11258] - Add a new "DN" unit, ``units.dn`` or ``units.DN``, representing data number for a detector. [11591] astropy.utils ^^^^^^^^^^^^^ - Added ``ssl_context`` and ``allow_insecure`` options to ``download_file``, as well as the ability to optionally use the ``certifi`` package to provide root CA certificates when downloading from sites secured with TLS/SSL. [10434] - ``astropy.utils.data.get_pkg_data_path`` is publicly scoped (previously the private function ``_find_pkg_data_path``) for obtaining file paths without checking if the file/directory exists, as long as the package and module do. [11006] - Deprecated ``astropy.utils.OrderedDescriptor`` and ``astropy.utils.OrderedDescriptorContainer``, as new features in Python 3 make their use less compelling. [11094, 11099] - ``astropy.utils.masked`` provides a new ``Masked`` class/factory that can be used to represent masked ``ndarray`` and all its subclasses, including ``Quantity`` and its subclasses. These classes can be used inside coordinates, but the mask is not yet exposed. Generally, the interface should be considered experimental. [11127, 11792] - Add new ``utils.parsing`` module to with helper wrappers around ``ply``. [11227] - Change the Time and IERS leap second handling so that the leap second table is updated only when a Time transform involving UTC is performed. Previously this update check was done the first time a ``Time`` object was created, which in practice occured when importing common astropy subpackages like ``astropy.coordinates``. Now you can prevent querying internet resources (for instance on a cluster) by setting ``iers.conf.auto_download = False``. This can be done after importing astropy but prior to performing any ``Time`` scale transformations related to UTC. [11638] - Added a new module at ``astropy.utils.compat.optional_deps`` to consolidate the definition of ``HAS_x`` optional dependency flag variables, like ``HAS_SCIPY``. [11490] astropy.wcs ^^^^^^^^^^^ - Add IVOA UCD mappings for some FITS WCS keywords commonly used in solar physics. [10965] - Add ``STOKES`` FITS WCS keyword to the IVOA UCD mapping. [11236] - Updated bundled version of WCSLIB to version 7.6. See https://www.atnf.csiro.au/people/mcalabre/WCS/CHANGES for a list of included changes. [11549] API Changes ----------- astropy.coordinates ^^^^^^^^^^^^^^^^^^^ - For input to representations, subclasses of the class required for a given attribute will now be allowed in. [11113] - Except for ``UnitSphericalRepresentation``, shortcuts in representations now allow for attached differentials. [11467] - Allow coordinate name strings as input to ``SkyCoord.is_transformable_to``. [11552] astropy.cosmology ^^^^^^^^^^^^^^^^^ - Change ``z_at_value`` to use ``scipy.optimize.minimize_scalar`` with default method ``Brent`` (other options ``Bounded`` and ``Golden``) and accept ``bracket`` option to set initial search region. [11080] - Clarified definition of inputs to ``angular_diameter_distance_z1z2``. The function now emits ``AstropyUserWarning`` when ``z2`` is less than ``z1``. [11197] - Split cosmology realizations from core classes, moving the former to new file ``realizations``. [11345] - Since cosmologies are immutable, the initialization signature and values can be stored, greatly simplifying cloning logic and extending it to user-defined cosmology classes that do not have attributes with the same name as each initialization argument. [11515] - Cloning a cosmology with changed parameter(s) now appends "(modified)" to the new instance's name, unless a name is explicitly passed to ``clone``. [11536] - Allow ``m_nu`` to be input as any quantity-like or array-like -- Quantity, array, float, str, etc. Input is passed to the Quantity constructor and converted to eV, still with the prior mass-energy equivalence enabled. [11640] astropy.io.fits ^^^^^^^^^^^^^^^ - For conversion between FITS tables and astropy ``Table``, the standard mask values of ``NaN`` for float and null string for string are now properly recognized, leading to a ``MaskedColumn`` with appropriately set mask instead of a ``Column`` with those values exposed. Conversely, when writing an astropy ``Table`` to a FITS tables, masked values are now consistently converted to the standard FITS mask values of ``NaN`` for float and null string for string (i.e., not just for tables with ``masked=True``, which no longer is guaranteed to signal the presence of ``MaskedColumn``). [11222] astropy.io.votable ^^^^^^^^^^^^^^^^^^ - The use of ``version='1.0'`` is now fully deprecated in constructing a ``astropy.io.votable.tree.VOTableFile``. [11659] astropy.modeling ^^^^^^^^^^^^^^^^ - Removed deprecated ``astropy.modeling.blackbody`` module. [10972] astropy.table ^^^^^^^^^^^^^ - Added ``Column.value`` as an alias for the existing ``Column.data`` attribute. This makes accessing a column's underlying data array consistent with the ``.value`` attribute available for ``Time`` and ``Quantity`` objects. [10962] - In reading from a FITS tables, the standard mask values of ``NaN`` for float and null string for string are properly recognized, leading to a ``MaskedColumn`` with appropriately set mask. [11222] - Changed the implementation of the ``table.index.Index`` class so instantiating from this class now returns an ``Index`` object as expected instead of a ``SlicedIndex`` object. [11333] astropy.units ^^^^^^^^^^^^^ - The ``physical_type`` attribute of units now returns an instance of ``astropy.units.physical.PhysicalType`` instead of a string. Because ``PhysicalType`` instances can be compared to strings, no code changes should be necessary when making comparisons. The string representations of different physical types will differ from previous releases. [11204] - Calling ``Unit()`` with no argument now returns a dimensionless unit, as was documented but not implemented. [11295] astropy.utils ^^^^^^^^^^^^^ - Removed deprecated ``utils.misc.InheritDocstrings`` and ``utils.timer``. [10281] - Removed usage of deprecated ``ipython`` stream in ``utils.console``. [10942] astropy.wcs ^^^^^^^^^^^ - Deprecate ``accuracy`` argument in ``all_world2pix`` which was mistakenly *documented*, in the case ``accuracy`` was ever used. [11055] Bug Fixes --------- astropy.convolution ^^^^^^^^^^^^^^^^^^^ - Fixes for ``convolve_fft`` documentation examples. [11510] astropy.coordinates ^^^^^^^^^^^^^^^^^^^ - Allow ``Distance`` instances with negative distance values as input for ``SphericalRepresentation``. This was always noted as allowed in an exception message when a negative ``Quantity`` with length units was passed in, but was not actually possible to do. [11113] - Makes the ``Angle.to_string`` method to follow the format described in the docstring with up to 8 significant decimals instead of 4. [11153] - Ensure that proper motions can be calculated when converting a ``SkyCoord`` with cartesian representation to unit-spherical, by fixing the conversion of ``CartesianDifferential`` to ``UnitSphericalDifferential``. [11469] - When re-representing coordinates from spherical to unit-spherical and vice versa, the type of differential will now be preserved. For instance, if only a radial velocity was present, that will remain the case (previously, a zero proper motion component was added). [11482] - Ensure that wrapping of ``Angle`` does not raise a warning even if ``nan`` are present. Also try to make sure that the result is within the wrapped range even in the presence of rounding errors. [11568] - Comparing a non-SkyCoord object to a ``SkyCoord`` using ``==`` no longer raises an error. [11666] - Different ``SkyOffsetFrame`` classes no longer interfere with each other, causing difficult to debug problems with the ``origin`` attribute. The ``origin`` attribute now no longer is propagated, so while it remains available on a ``SkyCoord`` that is an offset, it no longer is available once that coordinate is transformed to another frame. [11730] [11730] astropy.cosmology ^^^^^^^^^^^^^^^^^ - Cosmology instance names are now immutable. [11535] astropy.io.ascii ^^^^^^^^^^^^^^^^ - Fixed bug where writing a table that has comments defined (via ``tbl.meta['comments']``) with the 'csv' format was failing. Since the formally defined CSV format does not support comments, the comments are now just ignored unless ``comment=<comment prefix>`` is supplied to the ``write()`` call. [11475] - Fixed the issue where the CDS reader failed to treat columns as nullable if the ReadMe file contains a limits specifier. [11531] - Made sure that the CDS reader does not ignore an order specifier that may be present after the null specifier '?'. Also made sure that it checks null values only when an '=' symbol is present and reads description text even if there is no whitespace after '?'. [11593] astropy.io.fits ^^^^^^^^^^^^^^^ - Fix ``ColDefs.add_col/del_col`` to allow in-place addition or removal of a column. [11338] - Fix indexing of ``fits.Header`` with Numpy integers. [11387] - Do not delete ``EXTNAME`` for compressed image header if a default and non-default ``EXTNAME`` are present. [11396] - Prevent warnings about ``HIERARCH`` with ``CompImageHeader`` class. [11404] - Fixed regression introduced in Astropy 4.0.5 and 4.2.1 with verification of FITS headers with HISTORY or COMMENT cards with long (> 72 characters) values. [11487] - Fix reading variable-length arrays when there is a gap between the data and the heap. [11688] astropy.io.votable ^^^^^^^^^^^^^^^^^^ - ``NumericArray`` converter now properly broadcasts scalar mask to array. [11157] - VOTables are now written with the correct namespace and schema location attributes. [11659] astropy.modeling ^^^^^^^^^^^^^^^^ - Fixes the improper propagation of ``bounding_box`` from ``astropy.modeling.models`` to their inverses. For cases in which the inverses ``bounding_box`` can be determined, the proper calculation has been implemented. [11414] - Bugfix to allow rotation models to accept arbitrarily-shaped inputs. [11435] - Bugfixes for ``astropy.modeling`` to allow ``fix_inputs`` to accept empty dictionaries and dictionaries with ``numpy`` integer keys. [11443] - Bugfix for how ``SPECIAL_OPERATORS`` are handled. [11512] - Fixes ``Model`` crashes when some inputs are scalars and during some types of output reshaping. [11548] - Fixed bug in ``LevMarLSQFitter`` when using weights and vector inputs. [11603] astropy.stats ^^^^^^^^^^^^^ - Fixed a bug with the ``copy=False`` option when carrying out sigma clipping - previously if ``masked=False`` this still copied the data, but this will now change the array in-place. [11219] astropy.table ^^^^^^^^^^^^^ - Ensure that adding a ``Quantity`` or other mixin column to a ``Table`` does not have side effects, such as creating an associated ``info`` instance (which would lead to slow-down of, e.g., slicing afterwards). [11077] - When writing to a FITS tables, masked values are again always converted to the standard FITS mask values of ``NaN`` for float and null string for string, not just for table with ``masked=True``. [11222] - Using ``Table.to_pandas()`` on an indexed ``Table`` with masked integer values now correctly construct the ``pandas.DataFrame``. [11432] - Fixed ``Table`` HTML representation in Jupyter notebooks so that it is horizontally scrollable within Visual Studio Code. This was done by wrapping the ``<table>`` in a ``<div>`` element. [11476] - Fix a bug where a string-valued ``Column`` that happened to have a ``unit`` attribute could not be added to a ``QTable``. Such columns are now simply kept as ``Column`` instances (with a warning). [11585] - Fix an issue in ``Table.to_pandas(index=<colname>)`` where the index column name was not being set properly for the ``DataFrame`` index. This was introduced by an API change in pandas version 1.3.0. Previously when creating a ``DataFrame`` with the index set to an astropy ``Column``, the ``DataFrame`` index name was automatically set to the column name. [11921] astropy.time ^^^^^^^^^^^^ - Fix a thread-safety issue with initialization of the leap-second table (which is only an issue when ERFA's built-in table is out of date). [11234] - Fixed converting a zero-length time object from UTC to UT1 when an empty array is passed. [11516] astropy.uncertainty ^^^^^^^^^^^^^^^^^^^ - ``Distribution`` instances can now be used as input to ``Quantity`` to initialize ``QuantityDistribution``. Hence, ``distribution * unit`` and ``distribution << unit`` will work too. [11210] astropy.units ^^^^^^^^^^^^^ - Move non-astronomy units from astrophys.py to a new misc.py file. [11142] - The physical type of ``astropy.units.mol / astropy.units.m ** 3`` is now defined as molar concentration. It was previously incorrectly defined as molar volume. [11204] - Make ufunc helper lookup thread-safe. [11226] - Make ``Unit`` string parsing (as well as ``Angle`` parsing) thread-safe. [11227] - Decorator ``astropy.units.decorators.quantity_input`` now only evaluates return type annotations based on ``UnitBase`` or ``FunctionUnitBase`` types. Other annotations are skipped over and are not attempted to convert to the correct type. [11506] astropy.utils ^^^^^^^^^^^^^ - Make ``lazyproperty`` and ``classdecorator`` thread-safe. This should fix a number of thread safety issues. [11224] astropy.visualization ^^^^^^^^^^^^^^^^^^^^^ - Fixed a bug that resulted in some parts of grid lines being visible when they should have been hidden. [11380] - Fixed a bug that resulted in ``time_support()`` failing for intervals of a few months if one of the ticks was the month December. [11615] astropy.wcs ^^^^^^^^^^^ - ``fit_wcs_from_points`` now produces a WCS with integer ``NAXIXn`` values. [10865] - Updated bundled version of ``WCSLIB`` to v7.4, fixing a bug that caused the coefficients of the TPD distortion function to not be written to the header. [11260] - Fixed a bug in assigning type when converting ``colsel`` to ``numpy.ndarray``. [11431] - Added ``WCSCOMPARE_*`` constants to the list of WCSLIB constants available/exposed through the ``astropy.wcs`` module. [11647] - Fix a bug that caused APE 14 WCS transformations for FITS WCS with ZOPT, BETA, VELO, VOPT, or VRAD CTYPE to not work correctly. [11781] Other Changes and Additions --------------------------- - The configuration file is no longer created by default when importing astropy and its existence is no longer required. Affiliated packages should update their ``__init__.py`` module to remove the block using ``update_default_config`` and ``ConfigurationDefaultMissingWarning``. [10877] - Replace ``pkg_resources`` (from setuptools) with ``importlib.metadata`` which comes from the stdlib, except for Python 3.7 where the backport package is added as a new dependency. [11091] - Turn on numpydoc's ``numpydoc_xref_param_type`` to create cross-references for the parameter types in the Parameters, Other Parameters, Returns and Yields sections of the docstrings. [11118] - Docstrings across the package are standardized to enable references. Also added is an Astropy glossary-of-terms to define standard inputs, e.g. ``quantity-like`` indicates an input that can be interpreted by ``astropy.units.Quantity``. [11118] - Binary wheels are now built to the manylinux2010 specification. These wheels should be supported on all versions of pip shipped with Python 3.7+. [11377] - The name of the default branch for the astropy git repository has been renamed to ``main``, and the documentation and tooling has been updated accordingly. If you have made a local clone you may wish to update it following the instructions in the repository's README. [11379] - Sphinx cross-reference link targets are added for every ``PhysicalType``. Now in the parameter types in the Parameters, Other Parameters, Returns and Yields sections of the docstring, the physical type of a quantity can be annotated in square brackets. E.g. `` distance : `~astropy.units.Quantity` ['length'] `` [11595] - The minimum supported version of ``ipython`` is now 4.2. [10942] - The minimum supported version of ``pyerfa`` is now 1.7.3. [11637] ``` ### 4.2.1 ``` ================== Bug Fixes --------- astropy.cosmology ^^^^^^^^^^^^^^^^^ - Fixed an issue where specializations of the comoving distance calculation for certain cosmologies could not handle redshift arrays. [10980] astropy.io.fits ^^^^^^^^^^^^^^^ - Fix bug where manual fixes to invalid header cards were not preserved when saving a FITS file. [11108] astropy.io.votable ^^^^^^^^^^^^^^^^^^ - ``NumericArray`` converter now properly broadcasts scalar mask to array. [11157] astropy.table ^^^^^^^^^^^^^ - Fix bug when initializing a ``Table`` subclass that uses ``TableAttribute``'s. If the data were an instance of the table then attributes provided in the table initialization call could be ignored. [11217] astropy.time ^^^^^^^^^^^^ - Change epoch of ``TimeUnixTAI`` (``"unix_tai"``) from ``1970-01-01T00:00:00 UTC`` to ``1970-01-01T00:00:00 TAI`` to match the intended and documented behaviour. This essentially changes the resulting times by 8.000082 seconds, the initial offset between TAI and UTC. [11249] astropy.units ^^^^^^^^^^^^^ - Fixed a bug with the ``quantity_input`` decorator where allowing dimensionless inputs for an argument inadvertently disabled any checking of compatible units for that argument. [11283] astropy.utils ^^^^^^^^^^^^^ - Fix a bug so that ``np.shape``, ``np.ndim`` and ``np.size`` again work on classes that use ``ShapedLikeNDArray``, like representations, frames, sky coordinates, and times. [11133] astropy.wcs ^^^^^^^^^^^ - Fix error when a user defined ``proj_point`` parameter is passed to ``fit_wcs_from_points``. [11139] Other Changes and Additions --------------------------- - Change epoch of ``TimeUnixTAI`` (``"unix_tai"``) from ``1970-01-01T00:00:00 UTC`` to ``1970-01-01T00:00:00 TAI`` to match the intended and documented behaviour. This essentially changes the resulting times by 8.000082 seconds, the initial offset between TAI and UTC. [11249] ``` ### 4.2 ``` ================ New Features ------------ astropy.convolution ^^^^^^^^^^^^^^^^^^^ - Methods ``convolve`` and ``convolve_fft`` both now return Quantity arrays if user input is given in one. [10822] astropy.coordinates ^^^^^^^^^^^^^^^^^^^ - Numpy functions that broadcast, change shape, or index (like ``np.broadcast_to``, ``np.rot90``, or ``np.roll``) now work on coordinates, frames, and representations. [10337] - Add a new science state ``astropy.coordinates.erfa_astrom.erfa_astrom`` and two classes ``ErfaAstrom``, ``ErfaAstromInterpolator`` as wrappers to the ``pyerfa`` astrometric functions used in the coordinate transforms. Using ``ErfaAstromInterpolator``, which interpolates astrometric properties for ``SkyCoord`` instances with arrays of obstime, can dramatically speed up coordinate transformations while keeping microarcsecond resolution. Depending on needed precision and the obstime array in question, speed ups reach factors of 10x to >100x. [10647] - ``galactocentric_frame_defaults`` can now also be used as a registry, with user-defined parameter values and metadata. [10624] - Method ``.realize_frame`` from coordinate frames now accepts ``**kwargs``, including ``representation_type``. [10727] - Avoid an unnecessary call to ``erfa.epv00`` in transformations between ``CIRS`` and ``ICRS``, improving performance by 50 %. [10814] - A new equatorial coordinate frame, with RA and Dec measured w.r.t to the True Equator and Equinox (TETE). This frame is commonly known as "apparent place" and is the correct frame for coordinates returned from JPL Horizons. [10867] - Added a context manager ``impose_finite_difference_dt`` to the ``TransformGraph`` class to override the finite-difference time step attribute (``finite_difference_dt``) for all transformations in the graph with that attribute. [10341] - Improve performance of ``SpectralCoord`` by refactoring internal implementation. [10398] astropy.cosmology ^^^^^^^^^^^^^^^^^ - The final version of the Planck 2018 cosmological parameters are included as the ``Planck18`` object, which is now the default cosmology. The parameters are identical to those of the ``Planck18_arXiv_v2`` object, which is now deprecated and will be removed in a future release. [10915] astropy.modeling ^^^^^^^^^^^^^^^^ - Added NFW profile and tests to modeling package [10505] - Added missing logic for evaluate to compound models [10002] - Stop iteration in ``FittingWithOutlierRemoval`` before reaching ``niter`` if the masked points are no longer changing. [10642] - Keep a (shallow) copy of ``fit_info`` from the last iteration of the wrapped fitter in ``FittingWithOutlierRemoval`` and also record the actual number of iterations performed in it. [10642] - Added attributes for fitting uncertainties (covariance matrix, standard deviations) to models. Parameter covariance matrix can be accessed via ``model.cov_matrix``, standard deviations by ``model.stds`` or individually for each parameter by ``parameter.std``. Currently implemented for ``LinearLSQFitter`` and ``LevMarLSQFitter``. [10552] - N-dimensional least-squares statistic and specific 1,2,3-D methods [10670] astropy.stats ^^^^^^^^^^^^^ - Added ``circstd`` function to obtain a circular standard deviation. [10690] astropy.table ^^^^^^^^^^^^^ - Allow initializing a ``Table`` using a list of ``names`` in conjunction with a ``dtype`` from a numpy structured array. The list of ``names`` overrides the names specified in the ``dtype``. [10419] astropy.time ^^^^^^^^^^^^ - Add new ``isclose()`` method to ``Time`` and ``TimeDelta`` classes to allow comparison of time objects to within a specified tolerance. [10646] - Improve initialization time by a factor of four when creating a scalar ``Time`` object in a format like ``unix`` or ``cxcsec`` (time delta from a reference epoch time). [10406] - Improve initialization time by a factor of ~25 or more for large arrays of string times in ISO, ISOT or year day-of-year formats. This is done with a new C-based time parser that can be adapted for other fixed-format custom time formats. [10360] - Numpy functions that broadcast, change shape, or index (like ``np.broadcast_to``, ``np.rot90``, or ``np.roll``) now work on times. [10337, 10502] astropy.timeseries ^^^^^^^^^^^^^^^^^^ - Improve memory and speed performance when iterating over the entire time column of a ``TimeSeries`` object. Previously this involved O(N^2) operations and memory. [10889] astropy.units ^^^^^^^^^^^^^ - ``Quantity.to`` has gained a ``copy`` option to allow copies to be avoided when the units do not change. [10517] - Added the ``spat`` unit of solid angle that represents the full sphere. [10726] astropy.utils ^^^^^^^^^^^^^ - ``ShapedLikeNDArray`` has gained the capability to use numpy functions that broadcast, change shape, or index. [10337] - ``get_free_space_in_dir`` now takes a new ``unit`` keyword and ``check_free_space_in_dir`` takes ``size`` defined as ``Quantity``. [10627] - New ``astropy.utils.data.conf.allow_internet`` configuration item to control downloading data from the Internet. Setting ``allow_internet=False`` is the same as ``remote_timeout=0``. Using ``remote_timeout=0`` to control internet access will stop working in a future release. [10632] - New ``is_url`` function so downstream packages do not have to secretly use the hidden ``_is_url`` anymore. [10684] astropy.visualization ^^^^^^^^^^^^^^^^^^^^^ - Added the ``Quadrangle`` patch for ``WCSAxes`` for a latitude-longitude quadrangle. Unlike ``matplotlib.patches.Rectangle``, the edges of this patch will be rendered as curved lines if appropriate for the WCS transformation. [10862] - The position of tick labels are now only calculated when needed. If any text parameters are changed (color, font weight, size etc.) that don't effect the tick label position, the positions are not recomputed, improving performance. [10806] astropy.wcs ^^^^^^^^^^^ - ``WCS.to_header()`` now appends comments to SIP coefficients. [10480] - A new property ``dropped_world_dimensions`` has been added to ``SlicedLowLevelWCS`` to record information about any world axes removed by slicing a WCS. [10195] - New ``WCS.proj_plane_pixel_scales()`` and ``WCS.proj_plane_pixel_area()`` methods to return pixel scales and area, respectively, as Quantity. [10872] API Changes ----------- astropy.config ^^^^^^^^^^^^^^ - ``set_temp_config`` now preserves the existing cache rather than deleting it and relying on reloading it from the previ
pyup-bot commented 2 years ago

Closing this in favor of #102