------------------------------------------------------------------- Wed Dec 21 22:56:59 UTC 2022 - Ben Greiner - Update to 5.2 * Astropy 5.2 is a major release that adds significant new functionality since the 5.1 release. * In particular, this release includes: * Quantity data types * Updates to astropy.cosmology * Topocentric ITRS Frame * Enhanced Fixed Width ASCII Tables * Accessing cloud-hosted FITS files * Drawing the instrument beam and a physical scale bar on celestial images * Interior ticks and tick labels * Support for tilde-prefixed paths * CCDData PSF Image representation * In addition to these major changes, Astropy 5.2 includes a large number of smaller improvements and bug fixes. - Move to PEP517 build - Revert rpmlintrc: the whitelist error category has been removed from rpmlint ------------------------------------------------------------------- Mon Nov 21 11:03:53 UTC 2022 - Ben Greiner - Whitelist stupid rpmlint error * https://docs.astropy.org/en/latest/development/testguide.html#astropy-test * gh#rpm-software-management/rpmlint#965 ------------------------------------------------------------------- Sun Oct 23 10:46:04 UTC 2022 - Ben Greiner - Update to 5.1.1 # API Changes ## astropy.wcs * The pixel argument to astropy.visualization.wcsaxes.ticklabels.TickLabels.add no longer does anything, is deprecated, and will be removed in a future astropy version. It has been replaced by a new required data argument, which should be used to specify the data coordinates of the tick label being added. * This changes has been made because it is (in general) not possible to correctly calculate pixel coordinates before Matplotlib is drawing a figure. [#12630] # Bug Fixes ## astropy.coordinates * Fixed a bug that prevented SkyOffsetFrame instances to be pickled by adding a custom __reduce__ method to the class (see issue #9249). [#13305] * Fixed the check for invalid Latitude values for float32 values. Latitude now accepts the float32 value of pi/2, which was rejected before because a comparison was made using the slightly smaller float64 representation. See issue #13708. [#13745] ## astropy.io.ascii * Fixed confusing chained exception messages of read() function when it fails. [#13170] * When writing out a :class:`~astropy.table.Table` to HTML format, the formats keyword argument to the :meth:`~astropy.table.Table.write` method will now be applied. [#13453] ## astropy.io.fits * heapsize is now checked for VLA tables. An error is thrown whether P format is used but the heap size is bigger than what can be indexed with a 32 bit signed int. [#13429] * Fix parsing of ascii TFORM when precision is missing. [#13520] * A compressed image HDU created from the header of a PRIMARY HDU, now correctly updates 'XTENSION' and 'SIMPLE' keywords. [#13557] * Empty variable-length arrays are now properly handled when pathological combinations of heapoffset and heapsize are encountered. [#13621] * PCOUNT and GCOUNT keywords are now removed from an uncompressed Primary header, for compliancy with fitsverify behavior. [#13753] ## astropy.modeling * Bugfix for using MagUnit units on model parameters. [#13158] * Fix bug in using non-linear fitters to fit 0-degree polynomials using weights. [#13628] ## astropy.table * Fix a problem where accessing one field of a structured column returned a Column with the same info as the original column. This resulted in unintuitive behavior in general and an exception if the format for the column was set. [#13269] * Tables with columns with structured data can now be properly stacked and joined. [#13306] * Update jQuery to 3.6.0, to pick up security fixes. [#13438] * Fix a Python 3.11 compatibility issue. Ensure that when removing a table column that the pprint_include_names or pprint_exclude_names attributes get updated correctly. [#13639] * When using add_columns with same indexes in indexes option or without specifying the option, the order of the new columns will now be kept. [#13783] * Fix a bug when printing or getting the representation of a multidimensional table column that has a zero dimension. [#13838] * Ensure that mixin columns and their info are not shared between tables even when their underlying data is shared with copy=False. [#13842] ## astropy.time * Fix Time.insert() on times which have their out_subfmt set. [#12732] * Prevent Time() from being initialized with an invalid precision leading to incorrect results when representing the time as a string. [#13068] * Fix a bug in Time where a date string like "2022-08-01.123" was being parsed as an ISO-format time "2022-08-01 00:00:00.123". The fractional part at the end of the string was being taken as seconds. Now this raises an exception because the string is not in ISO format. [#13731] ## astropy.units * Significantly improved the performance of parsing composite units with the FITS format, by ensuring the detailed_exception argument is properly passed on and thus used. [#12699] * Ensure that np.concatenate on quantities can take a dtype argument (added in numpy 1.20). [#13323] * Ensure that the units of any initial argument to reductions such as np.add.reduce (which underlies np.sum) are properly taken into account. [#13340] ## astropy.utils * Ensure that np.concatenate on masked data can take a dtype argument (added in numpy 1.20). [#13323] * Fix error when suppressing download progress bar while using non-default sys.stdout stream. [#13352] * Ensure str and repr work properly for Masked versions of structured subarrays. [#13404] * If an attribute is created using deprecated_attribute() with the alternative argument then getting or setting the value of the deprecated attribute now accesses its replacement. [#13824] ## astropy.visualization * Fixed calling .tight_layout() on a WCSAxes. [#12418] ## astropy.wcs * WCS.pixel_to_world now creates an EarthLocation object using MJD-AVG if present before falling back to the old behaviour of using MJD-OBS. [#12598] * The locations of WCSAxes ticks and tick-labels are now correctly calculated when the DPI of a figure changes between a WCSAxes being created and the figure being drawn, or when a rasterized artist is added to the WCSAxes. [#12630] * Fix a bug where SlicedLowLevelWCS.world_to_pixel_values would break when the result of the transform is dependent on the coordinate of a sliced out pixel. [#13579] * Updated bundled WCSLIB version to 7.12. This update includes bug fixes to wcssub() in how it handles temporal axes with -TAB and fixes handling of status returns from linp2x() and linx2p() relating to distortion functions, in particular affecting TPV distortions - see #13509. For a full list of changes - see http://www.atnf.csiro.au/people/mcalabre/WCS/CHANGES or astropy/cextern/wcslib/CHANGES. [#13635] * Fixed WCS validation not working properly if HDUList is needed for multi-extension FITS file. [#13668] ------------------------------------------------------------------- Mon Jun 20 09:55:12 UTC 2022 - Ben Greiner - Skip two tests because of hypothesis -- gh#astropy/astropy#13275 ------------------------------------------------------------------- Tue May 31 20:51:59 UTC 2022 - Ben Greiner - Skip two test categories segfaulting: gh#astropy/astropy#13286 ------------------------------------------------------------------- Thu May 26 15:46:09 UTC 2022 - Ben Greiner - Update to 5.1 * Astropy 5.1 is a major release that adds significant new functionality since the 5.0 LTS release. * In particular, this release includes: - Updates to cosmology - doppler_redshift() equivalency - Specifying data types when reading ASCII tables - Structured Columns - New model fitters have been added - Allow time conversions without predictive Earth rotation data (IERS-A) - Uncertainty classes can be transformed into each other - Schechter1D Model * In addition to these major changes, Astropy v5.1 includes a large number of smaller improvements and bug fixes, which are described in the Full Changelog. ------------------------------------------------------------------- Sat Apr 23 19:27:14 UTC 2022 - Ben Greiner - Enable tests requiring Pytest 7 ------------------------------------------------------------------- Fri Apr 1 17:57:36 UTC 2022 - Ben Greiner - Update to 5.0.4 # Bug Fixes ## astropy.modeling * Fixed the Gaussian2D bounding_box when theta is an angular Quantity. [#13021] ## astropy.utils * Reverted astropy.utils.iers.iers.IERS_A_URL to maia.usno.navy.mil domain instead of NASA FTP to work around server issues. [#13004] # Other Changes and Additions * Updated bundled WCSLIB to version 7.9 with several bugfixes and added support for time coordinate axes in wcsset() and wcssub(). The four-digit type code for the time axis will have the first digit set to 4, i.e., four digit code will be 4xxx where x is a digit 0-9. For a full list of bug fixes see https://www.atnf.csiro.au/people/mcalabre/WCS/CHANGES [#12994] (when building --without system_wcslib) - Release 5.0.3 # Bug Fixes ## astropy.convolution * Bugfix in astropy.convolution.utils.discretize_model which allows the function to handle a CompoundModel. Before this fix, discretize_model was confusing CompoundModel with a callable function. [#12959] ## astropy.io.fits * Fix write and read FITS tables with multidimensional items, using from_columns without previousely defined ColDefs structure. [#12863] ## astropy.io.votable * Fix VOTable linting to avoid use of shell option. [#12985] astropy.utils * Fix XML linting to avoid use of shell option. [#12985] # Other Changes and Additions * Updated the bundled CFITSIO library to 4.1.0. [#12967] (when building --without system_cfitsio) ------------------------------------------------------------------- Sun Mar 13 08:10:02 UTC 2022 - Ben Greiner - Update to 5.0.2 astropy.io.ascii * Bugfix to add backwards compatibility for reading ECSV version 0.9 files with non-standard column datatypes (such as `object`, `str`, `datetime64`, etc.), which would raise a ValueError in ECSV version 1.0. [#12880] * astropy.io.misc * Bugfix for `units_mapping` schema's property name conflicts. Changes: - `inputs` to `unit_inputs` - `outputs` to `unit_outputs` [#12800] astropy.io.votable * Fixed a bug where `astropy.io.votable.validate` was printing output to `sys.stdout` when the `output` paramter was set to `None`. `validate` now returns a string when `output` is set to `None`, as documented. [#12604] astropy.modeling * Fix handling of units on `scale` parameter in BlackBody model. [#12318] * Indexing on models can now be used with all types of integers (like `numpy.int64`) instead of just `int`. [#12561] * Fix computation of the separability of a `CompoundModel` where another `CompoundModel` is on the right hand side of the `&` operator. [#12907] * Provide a hook (`Model._calculate_separability_matrix`) to allow subclasses of `Model` to define how to compute their separability matrix. [#12900] astropy.stats * Fixed a bug in which running `kuiper_false_positive_probability(D,N)` on distributions with many data points could produce NaN values for the false positive probability of the Kuiper statistic. [#12896] astropy.wcs * Fixed a bug due to which `naxis`, `pixel_shape`, and `pixel_bounds` attributes of `astropy.wcs.WCS` were not restored when an `astropy.wcs.WCS` object was unpickled. This fix also eliminates `FITSFixedWarning` warning issued during unpiclikng of the WCS objects related to the number of axes. This fix also eliminates errors when unpickling WCS objects originally created using non-default values for `key`, `colsel`, and `keysel` parameters. [#12844] ------------------------------------------------------------------- Fri Jan 28 19:27:20 UTC 2022 - Ben Greiner - Update to 5.0.1 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] ------------------------------------------------------------------- Tue Dec 28 20:00:07 UTC 2021 - Ben Greiner - Skip flaky test_color_print3 ------------------------------------------------------------------- Tue Dec 28 12:53:13 UTC 2021 - Ben Greiner - Update to version 5.0 * https://docs.astropy.org/en/stable/whatsnew/5.0.html * Astropy 5.0 is a major release that adds significant new functionality since the 4.3.x series of releases. In addition, it is a long-term support release (LTS) which will be supported with bug fixes for two years. In particular, this release includes: * Support for reading, writing, and converting Cosmology * Cosmology units module * New Models * Added support for dask arrays in tables * Added support for registering array-like objects as mixin columns * Support for reading and writing tables to Parquet format * Support for reading and writing tables to MRT format * Support for masked quantity columns, including masked FITS columns with units * Converting SkyCoord to QTable * New Unified I/O architecture * In addition to these major changes, Astropy v5.0 includes a large number of smaller improvements and bug fixes, which are described in the Full Changelog. https://docs.astropy.org/en/stable/changelog.html#changelog - Drop patches fixed upstream * astropy-pr12006-cfitsio4.patch * astropy-pr12159-py310.patch ------------------------------------------------------------------- Mon Dec 27 17:29:17 UTC 2021 - Ben Greiner - Add astropy-pr12159-py310.patch -- gh#astropy/astropy#12159 ------------------------------------------------------------------- Thu Oct 28 20:50:43 UTC 2021 - Ben Greiner - Skip test_no_numpy_warnings[contours] due to wrong MPL version check -- gh#astropy/astropy#12050 ------------------------------------------------------------------- Fri Aug 27 10:02:29 UTC 2021 - Ben Greiner - Suppress hypothesis health check for slow OBS episodes ------------------------------------------------------------------- Wed Aug 18 11:19:36 UTC 2021 - Ben Greiner - Update to version 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] ------------------------------------------------------------------- Thu Aug 5 23:57:51 UTC 2021 - Ben Greiner - Add astropy-pr12006-cfitsio4.patch for cfitsio 4 gh#astropy/astropy#12006 - Revert the use of bundled cfitsio for non x86 architectures. Those just had cfitsio earlier in the repositories than x86. ------------------------------------------------------------------- Thu Aug 5 14:04:16 UTC 2021 - Ben Greiner - Update to version 4.3.post1 Astropy 4.3 is a major release that adds significant new functionality since the 4.2.x series of releases. * Transformations to AltAz are now much more precise (and faster) * Improvements in making Astropy thread-safe * Performance improvements to sigma clipping * Changes in the Time and IERS leap second handling * Support for multidimensional and object columns in ECSV * Support for reading and writing tables to QDP format * Append table to existing FITS file * General masked class for Quantity and other ndarray subclasses * Configuration file improvements * Support for different solvers and bracket option in z_at_value * Full changelog: https://docs.astropy.org/en/stable/changelog.html - Drop patch and files merged upstream: * astropy-pr11260+pr11549-wcs76.patch * dss.14.29.56-62.41.05.fits.gz * tab-time-last-axis.fits - Use bundled cfitsio for s390x, Power and ARM - Increase Hypothesis test deadline to 5s ------------------------------------------------------------------- Sun Jul 4 13:26:14 UTC 2021 - Ben Greiner - Replace astropy-pr11260-wcsfailures.patch with astropy-pr11260+pr11549-wcs76.patch * fixes test failures because of the recent Tumbleweed update to wcslib 7.6 * include binary test file tab-time-last-axis.fits from gh#astropy/astropy#11549, which does not fit into the patchfile ------------------------------------------------------------------- Sat Apr 17 15:30:57 UTC 2021 - Ben Greiner - Fix python_expand for test call ------------------------------------------------------------------- Thu Apr 8 16:46:35 UTC 2021 - Ben Greiner - Update to version 4.2.1 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] ------------------------------------------------------------------- Mon Mar 8 12:07:01 UTC 2021 - Ben Greiner - Fix test failures with updated wcslib -- gh#astropy/astropy#11260 * Add astropy-pr11260-wcsfailures.patch * Add dss.14.29.56-62.41.05.fits.gz ------------------------------------------------------------------- Fri Jan 15 18:01:11 UTC 2021 - Benjamin Greiner - Make sure that the python >= 3.7 requirement is checked on build time and let rpm do the rest. - Use bundled libraries on Leap 15.X ------------------------------------------------------------------- Fri Jan 1 19:03:47 UTC 2021 - Benjamin Greiner - Increase the hypothesis test deadline ------------------------------------------------------------------- Tue Dec 8 22:41:32 UTC 2020 - Benjamin Greiner - OBS thinks the test flavor creates a build-cycle. Reintroduce the pseudo package suffix. ------------------------------------------------------------------- Sat Nov 28 21:28:47 UTC 2020 - Benjamin Greiner - Update to Version 4.2 Astropy 4.2 is a major release that adds new funcionality since the 4.1 release. In particular, this release includes: * Planck 2018 is accepted and now the default cosmology * Time performance improvements * Removed ERFA module In addition to these major changes, Astropy v4.2 includes smaller improvements and bug fixes and significant cleanup, which are described in the Full Changelog. By the numbers: * 183 issues have been closed since v4.1 * 105 pull requests have been merged since v4.1 * 63 distinct people have contributed code - Bump requirements versions - Drop astropy-pr10329-unbundle-erfa_4.1.patch merged upstream ------------------------------------------------------------------- Thu Oct 22 09:36:36 UTC 2020 - Benjamin Greiner - Update to 4.1 Astropy 4.1 is a major release that contains bug fixes and new features since the 4.0.x series of releases. In particular, this release includes: * A new SpectralCoord class for representing and transforming spectral quantities * Support for writing Dask arrays to FITS files * Added True Equator Mean Equinox (TEME) frame for satellite two- line ephemeris data * Support for in-place setting of array-valued SkyCoord and frame objects * Change in the definition of equality comparison for coordinate classes * Support use of SkyCoord in table vstack, dstack, and insert_row * Support for table cross-match join with SkyCoord or N-d columns * Support for custom attributes in Table subclasses * Added a new Time subformat unix_tai * Added support for the -TAB convention in FITS WCS * Support for replacing submodels in CompoundModel * Support for units on otherwise unitless models via the Model.coerce_units method. * Support for ASDF serialization of models In addition to these major changes, Astropy v4.0 includes a large number of smaller improvements and bug fixes, which are described in the Full Changelog. By the numbers: * 381 issues have been closed since v4.0 * 511 pull requests have been merged since v4.0 * 66 distinct people have contributed code to this release, 23 of which are first time contributors to Astropy - Drop astropy-pr10545-remove-newline-3d_cd_hdr.patch * merged upstream * gh#astropy/astropy#10545 - Add astropy-pr10329-unbundle-erfa_4.1.patch * Remove bundled _erfa but use system package pyerfa instead * gh#astropy/astropy#10329 - enable optional pytest-xdist ------------------------------------------------------------------- Thu Oct 15 12:22:54 UTC 2020 - Benjamin Greiner - Update to 4.0.3 * astropy.table Fixed a small bug where initializing an empty `Column` with a structured dtype with a length and a shape failed to give the requested dtype. [#10819] * Fixed installation of the source distribution with pip<19. [#10837, #10852] ------------------------------------------------------------------- Sat Oct 10 20:46:40 UTC 2020 - Benjamin Greiner - Update to 4.0.2 New Features * astropy.utils astropy.utils.data.download_file now supports FTPS/FTP over TLS. [#9964] astropy.utils.data now uses a lock-free mechanism for caching. This new mechanism uses a new cache layout and so ignores caches created using earlier mechanisms (which were causing lockups on clusters). The two cache formats can coexist but do not share any files. [#10437, #10683] astropy.utils.data now ignores the config item astropy.utils.data.conf.download_cache_lock_attempts since no locking is done. [#10437, #10683] astropy.utils.data.download_file and related functions now interpret the parameter or config file setting timeout=0 to mean they should make no attempt to download files. [#10437, #10683] astropy.utils.import_file_to_cache now accepts a keyword-only argument replace, defaulting to True, to determine whether it should replace existing files in the cache, in a way as close to atomic as possible. [#10437, #10683] astropy.utils.data.download_file and related functions now treat http://example.com and http://example.com/ as equivalent. [#10631] * astropy.wcs The new auxiliary WCS parameters added in WCSLIB 7.1 are now exposed as the aux attribute of Wcsprm. [#10333] Updated bundled version of WCSLIB to v7.3. [#10433] Bug fixes * astropy.config Added an extra fallback to os.expanduser('~') when trying to find the user home directory. [#10570] * astropy.constants Corrected definition of parsec to 648 000 / pi AU following IAU 2015 B2 [#10569] * astropy.convolution Fixed a bug where a float-typed integers in the argument x_range of astropy.convolution.utils.discretize_oversample_1D (and the 2D version as well) fails because it uses numpy.linspace, which requires an int. [#10696] * astropy.coordinates Ensure that for size-1 array SkyCoord and coordinate frames the attributes also properly become scalars when indexed with 0. [#10113] Fixed a bug where SkyCoord.separation() and SkyCoord.separation_3d were not accepting a frame object. [#10332] Ensure that the lon values in SkyOffsetFrame are wrapped correctly at 180 degree regardless of how the underlying data is represented. [#10163] Fixed an error in the obliquity of the ecliptic when transforming to/from the *TrueEcliptic coordinate frames. The error would primarily result in an inaccuracy in the ecliptic latitude on the order of arcseconds. [#10129] Fixed an error in the computation of the location of solar system bodies where the Earth location of the observer was ignored during the correction for light travel time. [#10292] Ensure that coordinates with proper motion that are transformed to other coordinate frames still can be represented properly. [#10276] Improve the error message given when trying to get a cartesian representation for coordinates that have both proper motion and radial velocity, but no distance. [#10276] Fixed an error where SkyCoord.apply_space_motion would return incorrect results when no distance is set and proper motion is high. [#10296] Make the parsing of angles thread-safe so that Angle can be used in Python multithreading. [#10556] Fixed reporting of EarthLocation.info which previously raised an exception. [#10592] * astropy.io.ascii Fixed a bug with the C fast_reader not correctly parsing newlines when delimiter was also set to \n or \r; ensured consistent handling of input strings without newline characters. [#9929] * astropy.io.fits Fix integer formats of TFORMn=Iw columns in ASCII tables to correctly read values exceeding int32 - setting int16, int32 or int64 according to w. [#9901] Fix unclosed memory-mapped FITS files in FITSDiff when difference found. [#10159] Fix crash when reading an invalid table file. [#10171] Fix duplication issue when setting a keyword ending with space. [#10482] Fix ResourceWarning with fits.writeto and pathlib.Path object. [#10599] Fix repr for commentary cards and strip spaces for commentary keywords. [#10640] Fix compilation of cfitsio with Xcode 12. [#10772] Fix handling of 1-dimensional arrays with a single element in BinTableHDU [#10768] * astropy.io.misc Fix id URL in baseframe-1.0.0 ASDF schema. [#10223] Write keys to ASDF only if the value is present, to account for a change in behavior in asdf 2.8. [#10674] * astropy.io.registry Fix Table.(read|write).help when reader or writer has no docstring. [#10460] * astropy.io.votable Fixed parsing failure of VOTable with no fields. When detecting a non-empty table with no fields, the following warning/ exception is issued: E25 "No FIELDs are defined; DATA section will be ignored." [#10192] * astropy.modeling Fixed a problem with mapping input_units and return_units of a CompoundModel to the units of the constituent models. [#10158] Removed hard-coded names of inputs and outputs. [#10174] Fixed a problem where slicing a CompoundModel by name will crash if there fix_inputs operators are present. [#10224] Removed a limitation of fitting of data with units with compound models without units when the expression involves operators other than addition and subtraction. [#10415] Fixed a problem with fitting Linear1D and Planar2D in model sets. [#10623] Fixed reported module name of math_functions model classes. [#10694] Fixed reported module name of tabular model classes. [#10709] Do not create new math_functions models for ufuncs that are only aliases (divide and mod). [#10697] Fix calculation of the Moffat2D derivative with respect to gamma. [#10784] * astropy.stats Fixed an API regression where SigmaClip.__call__ would convert masked elements to nan and upcast the dtype to float64 in its output MaskedArray when using the axis parameter along with the defaults masked=True and copy=True. [#10610] Fixed an issue where fully masked MaskedArray input to sigma_clipped_stats gave incorrect results. [#10099] Fixed an issue where sigma_clip and SigmaClip.__call__ would return a masked array instead of a ndarray when masked=False and the input was a full-masked MaskedArray. [#10099] Fixed bug with funcs.poisson_conf_interval where an integer for N with interval='kraft-burrows-nousek' would throw an error with mpmath backend. [#10427] Fixed bug in funcs.poisson_conf_interval with interval='kraft- burrows-nousek' where certain combinations of source and background count numbers led to ValueError due to the choice of starting value for numerical optimization. [#10618] * astropy.table Fixed a bug when writing a table with mixin columns to FITS, ECSV or HDF5. If one of the data attributes of the mixin (e.g. skycoord.ra) had the same name as one of the table column names (ra), the column (ra) would be dropped when reading the table back. [#10222] Fixed a bug when sorting an indexed table on the indexed column after first sorting on another column. [#10103] Fixed a bug in table argsort when called with reverse=True for an indexed table. [#10103] Fixed a performance regression introduced in #9048 when initializing a table from Python lists. Also fixed incorrect behavior (for data types other than float) when those lists contain np.ma.masked elements to indicate masked data. [#10636] Avoid modifying .meta when serializing columns to FITS. [#10485] Avoid crash when reading a FITS table that contains mixin info and PyYAML is missing. [#10485] * astropy.time Ensure that for size-1 array Time, the location also properly becomes a scalar when indexed with 0. [#10113] * astropy.units Refined test_parallax to resolve difference between 2012 and 2015 definitions. [#10569] * astropy.utils The default IERS server has been updated to use the FTPS server hosted by CDDIS. [#9964] Fixed memory allocation on 64-bit systems within xml.iterparse [#10076] Fix case where None could be used in a numerical computation. [#10126] * astropy.visualization Fixed a bug where the ImageNormalize clip keyword was ignored when used with calling the object on data. [#10098] Fixed a bug where axes.xlabel/axes.ylabel where not correctly set nor returned on an EllipticalFrame class WCSAxes plot. [#10446] * astropy.wcs Handled WCS 360 -> 0 deg crossover in fit_wcs_from_points [#10155] Do not issue DATREF warning when MJDREF has default value. [#10440] Fixed a bug due to which naxis argument was ignored if header was supplied during the initialization of a WCS object. [#10532] Other Changes and Additions * Improved the speed of sorting a large Table on a single column by a factor of around 5. [#10103] * Ensure that astropy can be used inside Application bundles built with pyinstaller. [#8795] * Updated the bundled CFITSIO library to 3.49. See cextern/ cfitsio/docs/changes.txt for additional information. [#10256, #10665] * extract_array raises a ValueError if the data type of the input array is inconsistent with the fill_value. [#10602] - Drop merged PR patches * astropy-pr10433-wcslib73-tests.patch gh#astropy/astropy#10433 * astropy-pr10440-wcs-datfix.patch gh#astropy/astropy#10440 - Skip test_compound_fitting_with_units gh#astropy/astropy#10675 ------------------------------------------------------------------- Fri Jul 17 11:42:19 UTC 2020 - Benjamin Greiner - actually detect unit test failures with sys.exit(astropy.tests()) - do not fail on DeprecationWarnings - support updated system lib wcslib 7.3 with astropy-pr10433-wcslib73-tests.patch gh#astropy/astropy#10433 astropy-pr10440-wcs-datfix.patch gh#astropy/astropy#10440 - clean up blank lines after pytest report and prevent possible failure of tests depending on test order astropy-pr10545-remove-newline-3d_cd_hdr.patch gh#astropy/astropy#10545 ------------------------------------------------------------------- Thu Jul 9 23:14:09 UTC 2020 - Benjamin Greiner - Switch from pytest macro back to astropy.test() This avoids compiling a second time inplace and obsoletes the necessary deprecation warningsfilters. New deprecation warnings from numpy 1.19 started to fail the test multibuild again. Can now drop astropy-openSUSE-ignore-warnings.patch - Fix update-alternatives warnings by expanding the loop early ------------------------------------------------------------------- Sun Jul 5 12:24:49 UTC 2020 - Benjamin Greiner - Fix conftest collection error: import local source dir for tests - Remove ignore pytest deprecation fixed by pytest-doctestplus >= 0.6 - Ignore leap second expiry and dubious year warnings for reproducible builds: gh#astropy/astropy#10228 astropy-openSUSE-ignore-warnings.patch ------------------------------------------------------------------- Wed Jun 3 07:42:45 UTC 2020 - Tomáš Chvátal - Switch to multibuild to avoid cycle with python-asdf package ------------------------------------------------------------------- Wed May 27 09:36:06 UTC 2020 - Petr Gajdos - %python3_only -> %python_alternative ------------------------------------------------------------------- Sun Apr 19 10:53:30 UTC 2020 - Benjamin Greiner - Update to 4.0.1.post1 * astropy.config [gh#astropy/astropy#9975] Fixed a bug where importing a development version of a package that uses ``astropy`` configuration system can result in a ``~/.astropy/config/package..cfg`` file. * astropy.coordinates [gh#astropy/astropy#9815] Fixed a bug where a vestigal trace of a frame class could persist in the transformation graph even after the removal of all transformations involving that frame class. [gh#astropy/astropy#9815] Fixed a bug with ``TransformGraph.remove_transform()`` when the "from" and "to" frame classes are not explicitly specified. [gh#astropy/astropy#9900] Read-only longitudes can now be passed in to ``EarthLocation`` even if they include angles outside of the range of -180 to 180 degrees. [gh#astropy/astropy#9980] ```SkyCoord.radial_velocity_correction``` no longer raises an Exception when space motion information is present on the SkyCoord. * astropy.io [gh#astropy/astropy#9866] Fixed a bug that prevented the unified I/O infrastructure from working with datasets that are represented by directories rather than files. * astropy.io.ascii [gh#astropy/astropy#9918] Fixed a bug in the ``fast_reader`` C parsers incorrectly returning entries of isolated positive/negative signs as ``float`` instead of ``str``. [gh#astropy/astropy#9923] Fixed a segmentation fault in the ``fast_reader`` C parsers when parsing an invalid file with ``guess=True`` and the file contains inconsistent column numbers in combination with a quoted field; e.g., ``"1 2\n 3 4 '5'"``. [gh#astropy/astropy#9933] Magnitude, decibel, and dex can now be stored in ``ecsv`` files. * astropy.io.misc [gh#astropy/astropy#9933] Magnitude, decibel, and dex can now be stored in ``hdf5`` files. [gh#astropy/astropy#9956, gh#astropy/astropy#9961] Fixed serialization of polynomial models to include non default values of domain and window values. [gh#astropy/astropy#9950] Fixed a bug which affected overwriting tables within ``hdf5`` files. Overwriting an existing path with associated column meta data now also overwrites the meta data associated with the table. [gh#astropy/astropy#9983] Fixed serialization of Time objects with location under time-1.0.0 ASDF schema. * astropy.io.fits [gh#astropy/astropy#9711, gh#astropy/astropy#9934] Fix regression with ``GroupsHDU`` which needs to modify the header to handle invalid headers, and fix accesing ``.data`` for empty HDU. [gh#astropy/astropy#9711] Fix ``fitsdiff`` when its arguments are directories that contain other directories. [gh#astropy/astropy#9958] Fix writing noncontiguous data to a compressed HDU. [gh#astropy/astropy#9978] Added verification of ``disp`` (``TDISP``) keyword to ``fits.Column`` and extended tests for ``TFORM`` and ``TDISP`` validation. [gh#astropy/astropy#10012] Fix checksum verification to process all HDUs instead of only the first one because of the lazy loading feature. [gh#astropy/astropy#10030] Allow passing ``output_verify`` to ``.close`` when using the context manager. [gh#astropy/astropy#10041] Prevent instantiation of ``PrimaryHDU`` and ``ImageHDU`` with a scalar. [gh#astropy/astropy#10069] Fix column access by attribute with FITS_rec: columns with scaling or columns from ASCII tables where not properly converted when accessed by attribute name. * astropy.io.misc [gh#astropy/astropy#9933] Magnitude, decibel, and dex can now be stored in ``hdf5`` files. [gh#astropy/astropy#9956, gh#astropy/astropy#9961] Fixed serialization of polynomial models to include non default values of domain and window values. [gh#astropy/astropy#9950] Fixed a bug which affected overwriting tables within ``hdf5`` files. Overwriting an existing path with associated column meta data now also overwrites the meta data associated with the table. [gh#astropy/astropy#9983] Fixed serialization of Time objects with location under time-1.0.0 ASDF schema. * astropy.modeling [gh#astropy/astropy#9987] Fixed a bug in setting default values of parameters of orthonormal polynomials when constructing a model set. * astropy.table [gh#astropy/astropy#9839] Fixed bug in ``Table.reverse`` for tables that contain non-mutable mixin columns (like ``SkyCoord``) for which in-place item update is not allowed. [gh#astropy/astropy#9933] Tables containing Magnitude, decibel, and dex columns can now be saved to ``ecsv`` files. [gh#astropy/astropy#10027] Fixed bug where adding or inserting a row fails on a table with an index defined on a column that is not the first one. [gh#astropy/astropy#10068] Ensured that ``table.show_in_browser`` also worked for mixin columns like ``Time`` and ``SkyCoord``. * astropy.time [gh#astropy/astropy#9679] Fix inaccuracy when converting between TimeDelta and datetime.timedelta. [gh#astropy/astropy#9812] Fixed exception when changing ``format`` in the case when ``out_subfmt`` is defined and is incompatible with the new format. [gh#astropy/astropy#9812] Fixed exceptions in ``Time.to_value()``: when supplying any ``subfmt`` argument for string-based formats like 'iso', and for ``subfmt='long'`` for the formats 'byear', 'jyear', and 'decimalyear'. [gh#astropy/astropy#9969] Fixed bug where the location attribute was lost when creating a new ``Time`` object from an existing ``Time`` or list of ``Time`` objects. [gh#astropy/astropy#10034] Fixed a bug where an exception occurred when creating a ``Time`` object if the ``val1`` argument was a regular double and the ``val2`` argument was a ``longdouble``. * astropy.timeseries [gh#astropy/astropy#10013] Fixed issue with reference time for the ``transit_time`` parameter returned by the ``BoxLeastSquares`` periodogram. Now, the ``transit_time`` will be within the range of the input data and arbitrary time offsets/zero points no longer affect results. * astropy.units [gh#astropy/astropy#9948] Fix for ``quantity_input`` annotation raising an exception on iterable types that don't define a general ``__contains__`` for checking if ``None`` is contained (e.g. Enum as of python3.8), by instead checking for instance of Sequence. [gh#astropy/astropy#10066] Fix for ``u.Quantity`` not taking into account ``ndmin`` if constructed from another ``u.Quantity`` instance with different but convertible unit * astropy.utils [gh#astropy/astropy#9981] Fixed ``deprecated_renamed_argument`` not passing in user value to deprecated keyword when the keyword has no new name. [gh#astropy/astropy#9985] Fixed ``deprecated_renamed_argument`` not issuing a deprecation warning when deprecated keyword without new name is passed in as positional argument. [gh#astropy/astropy#10007] Fixed detection of read-only filesystems in the caching code. * astropy.visualization [gh#astropy/astropy#9848] Fixed bug from matplotlib >=3.1 where an empty Quantity array is sent for unit conversion as an empty list. [gh#astropy/astropy#9913] Fix bug in ``ZScaleInterval`` to return the array minimum and maximum when there are less then ``min_npixels`` in the input array. [gh#astropy/astropy#8004, gh#astropy/astropy#9991] Fix a bug in simplifying axis labels that affected non-rectangular frames. * Increase minimum asdf version to 2.5.2. [gh#astropy/astropy#9996, gh#astropy/astropy#9819] * Updated wcslib to v7.2. [gh#astropy/astropy#10021] - updated test requirements and recommends - run pytest directly ------------------------------------------------------------------- Tue Jan 7 10:19:19 UTC 2020 - Sebastian Wagner - Require erfa >= 1.7 because of https://github.com/astropy/astropy/issues/9654 ------------------------------------------------------------------- Mon Jan 6 17:59:53 UTC 2020 - Todd R - Update to 4.0 + New Features > astropy.config * The config and cache directories and the name of the config file are now customizable. This allows affiliated packages to put their configuration files in locations other than ``CONFIG_DIR/.astropy/``. > astropy.constants * The version of constants can be specified via ScienceState in a way that ``constants`` and ``units`` will be consistent. * Default constants now use CODATA 2018 and IAU 2015 definitions. * Constants can be pickled and unpickled. > astropy.convolution * Fixed a bug where having a kernel defined using unitless astropy quantity objects would result in a crash > astropy.coordinates * Changed ``coordinates.solar_system_ephemeris`` to also accept local files as input. The ephemeris can now be selected by either keyword (e.g. 'jpl', 'de430'), URL or file path. * Added a ``cylindrical`` property to ``SkyCoord`` for shorthand access to a ``CylindricalRepresentation`` of the coordinate, as is already available for other common representations. * The default parameters for the ``Galactocentric`` frame are now controlled by a ``ScienceState`` subclass, ``galactocentric_frame_defaults``. New parameter sets will be added to this object periodically to keep up with ever-improved measurements of the solar position and motion. * Coordinate frame classes can now have multiple aliases by assigning a list of aliases to the class variable ``name``. Any of the aliases can be used for attribute-style access or as the target of ``tranform_to()`` calls. * Passing a NaN to ``Distance`` no longer raises a warning. > astropy.cosmology * The pre-publication Planck 2018 cosmological parameters are included as the ``Planck2018_arXiv_v2`` object. Please note that the values are preliminary, and when the paper is accepted a final version will be included as ``Planck18``. > astropy.io.ascii * Removed incorrect warnings on ``Overflow`` when reading in ``FloatType`` 0.0 with ``use_fast_converter``; synchronised ``IntType`` ``Overflow`` warning messages. > astropy.io.misc * Eliminate deprecated compatibility mode when writing ``Table`` metadata to HDF5 format. * Add support for orthogonal polynomial models to ASDF. > astropy.io.fits * Changed the ``fitscheck`` and ``fitsdiff`` script to use the ``argparse`` module instead of ``optparse``. * Allow writing of ``Table`` objects with ``Time`` columns that are also table indices to FITS files. > astropy.io.votable * Support VOTable version 1.4. The main addition is the new element, TIMESYS, which allows defining of metadata for temporal coordinates much like COOSYS defines metadata for celestial coordinates. > astropy.logger * Added a configuration option to specify the text encoding of the log file, with the default behavior being the platform-preferred encoding. > astropy.modeling * Major rework of modeling internals. `See modeling documentation for details. `_ . * Add ``Tabular1D.inverse``. * ``Model.rename`` was changed to add the ability to rename ``Model.inputs`` and ``Model.outputs``. * New function ``fix_inputs`` to generate new models from others by fixing specific inputs variable values to constants. * ``inputs`` and ``outputs`` are now model instance attributes, and ``n_inputs`` and ``n_outputs`` are class attributes. Backwards compatible default values of ``inputs`` and ``outputs`` are generated. ``Model.inputs`` and ``Model.outputs`` are now settable which allows renaming them on per user case. * Add a new model representing a sequence of rotations in 3D around an arbitrary number of axes. * Add many of the numpy ufunc functions as models. * Add ``BlackBody`` model. * Add ``Drude1D`` model. * Added analytical King model (KingProjectedAnalytic1D). * Added Exponential1D and Logarithmic1D models. > astropy.nddata * Add a way for technically invalid but unambiguous units in a fits header to be parsed by ``CCDData``. * ``NDData`` now only accepts WCS objects which implement either the high, or low level APE 14 WCS API. All WCS objects are converted to a high level WCS object, so ``NDData.wcs`` now always returns a high level APE 14 object. Not all array slices are valid for wcs objects, so some slicing operations which used to work may now fail. > astropy.stats * The ``biweight_location``, ``biweight_scale``, and ``biweight_midvariance`` functions now allow for the ``axis`` keyword to be a tuple of integers. * Added an ``ignore_nan`` option to the ``biweight_location``, ``biweight_scale``, and ``biweight_midvariance`` functions. * A numpy ``MaskedArray`` can now be input to the ``biweight_location``, ``biweight_scale``, and ``biweight_midvariance`` functions. * Removed the warning related to p0 in the Bayesian blocks algorithm. The caveat related to p0 is described in the docstring for ``Events``. > astropy.table * Improved the implementation of ``Table.replace_column()`` to provide a speed-up of 5 to 10 times for wide tables. The method can now accept any input which convertible to a column of the correct length, not just ``Column`` subclasses. * Improved the implementation of ``Table.add_column()`` to provide a speed-up of 2 to 10 (or more) when adding a column to tables, with increasing benefit as the number of columns increases. The method can now accept any input which is convertible to a column of the correct length, not just ``Column`` subclasses. * Changed the implementation of ``Table.add_columns()`` to use the new ``Table.add_column()`` method. In most cases the performance is similar or slightly faster to the previous implemenation. * ``MaskedColumn.data`` will now return a plain ``MaskedArray`` rather than the previous (unintended) ``masked_BaseColumn``. * Added depth-wise stacking ``dstack()`` in higher level table operation. It help will in stacking table column depth-wise. * Added a new table equality method ``values_equal()`` which allows comparison table values to another table, list, or value, and returns an element-by-element equality table. * Added new ``join_type='cartesian'`` option to the ``join`` operation. * Allow adding a table column as a list of mixin-type objects, for instance ``t['q'] = [1 * u.m, 2 * u.m]``. * Allow table ``join()`` using any sortable key column (e.g. Time), not just ndarray subclasses. A column is considered sortable if there is a ``.info.get_sortable_arrays()`` method that is implemented. * Added ``Table.iterrows()`` for making row-wise iteration faster. * Allow table to be initialized with a list of dict where the dict keys are not the same in every row. The table column names are the set of all keys found in the input data, and any missing key/value pairs are turned into missing data in the table. * Prevent unnecessary ERFA warnings when indexing by ``Time`` columns. * Added support for sorting tables which contain non-mutable mixin columns (like ``SkyCoord``) for which in-place item update is not allowed. * Ensured that inserting ``np.ma.masked`` (or any other value with a mask) into a ``MaskedColumn`` causes a masked entry to be inserted. * Fixed a bug that caused an exception when initializing a ``MaskedColumn`` from another ``MaskedColumn`` that has a structured dtype. > astropy.tests * The plugin that handles the custom header in the test output has been moved to the ``pytest-astropy-header plugin`` package. `See the README at `__ for information about using this new plugin. > astropy.time * Added a new time format ``ymdhms`` for representing times via year, month, day, hour, minute, and second attributes. * ``TimeDelta`` gained a ``to_value`` method, so that it becomes easier to use it wherever a ``Quantity`` with units of time could be used. * Made scalar ``Time`` and ``TimeDelta`` objects hashable based on JD, time scale, and location attributes. * Improved error message when bad input is used to initialize a ``Time`` or ``TimeDelta`` object and the format is specified. * Allow numeric time formats to be initialized with numpy ``longdouble``, ``Decimal`` instances, and strings. One can select just one of these using ``in_subfmt``. The output can be similarly set using ``out_subfmt``. * Introduce a new ``.to_value()`` method for ``Time`` (and adjusted the existing method for ``TimeDelta``) so that one can get values in a given ``format`` and possible ``subfmt`` (e.g., ``to_value('mjd', 'str')``. * Prevent unecessary ERFA warnings when sorting ``Time`` objects. > astropy.timeseries * Addig ``epoch_phase``, ``wrap_phase`` and ``normalize_phase`` keywords to ``TimeSeries.fold()`` to control the phase of the epoch and to return normalized phase rather than time for the folded TimeSeries. > astropy.uncertainty * ``Distribution`` was rewritten such that it deals better with subclasses. As a result, Quantity distributions now behave correctly with ``to`` methods yielding new distributions of the kind expected for the starting distribution, and ``to_value`` yielding ``NdarrayDistribution`` instances. * The ``pdf_*`` properties that were used to calculate statistical properties of ``Distrubution`` instances were changed into methods. This allows one to pass parameters such as ``ddof`` to ``pdf_std`` and ``pdf_var`` (which generally should equal 1 instead of the default 0), and reflects that these are fairly involved calcuations, not just "properties". > astropy.units * Support for unicode parsing. Currently supported superscripts are Ohm, Ångström, and the micro-sign. * Accept non-unit type annotations in @quantity_input. * For numpy 1.17 and later, the new ``__array_function__`` protocol is used to ensure that all top-level numpy functions interact properly with ``Quantity``, preserving units also in operations like ``np.concatenate``. * Add equivalencies for surface brightness units to spectral_density. > astropy.utils * ``astropy.utils.data.download_file`` and ``astropy.utils.data.get_readable_fileobj`` now provides an ``http_headers`` keyword to pass in specific request headers for the download. It also now defaults to providing ``User-Agent: Astropy`` and ``Accept: */*`` headers. The default ``User-Agent`` value can be set with a new ``astropy.data.conf.default_http_user_agent`` configuration item. * Added a new ``astropy.utils.misc.unbroadcast`` function which can be used to return the smallest array that can be broadcasted back to the initial array. * The specific IERS Earth rotation parameter table used for time and coordinate transformations can now be set, either in a context or per session, using ``astropy.utils.iers.earth_rotation_table``. * Added ``export_cache`` and ``import_cache`` to permit transporting downloaded data to machines with no Internet connection. Several new functions are available to investigate the cache contents; e.g., ``check_download_cache`` can be used to confirm that the persistent cache has not become damaged. * A new ``astropy.utils.iers.LeapSeconds`` class has been added to track leap seconds. > astropy.visualization * Added a new ``time_support`` context manager/function for making it easy to plot and format ``Time`` objects in Matplotlib. * Added support for plotting any WCS compliant with the generalized (APE 14) WCS API with WCSAxes. * Improved display of information when inspecting ``WCSAxes.coords``. * Improved error checking for the ``slices=`` argument to ``WCSAxes``. * Added support for more solar frames in WCSAxes. * Add support for one dimensional plots to ``WCSAxes``. * Add a ``get_format_unit`` to ``wcsaxes.CoordinateHelper``. * ``WCSAxes`` now, by default, sets a default label for plot axes which is the WCS physical type (and unit) for that axis. This can be disabled using the ``coords[i].set_auto_axislabel(False)`` or by explicitly setting an axis label. * Fixed the display of tick labels when plotting all sky images that have a coord_wrap less than 360. > astropy.wcs * Added a ``astropy.wcs.wcsapi.pixel_to_pixel`` function that can be used to transform pixel coordinates in one dataset with a WCS to pixel coordinates in another dataset with a different WCS. This function is designed to be efficient when the input arrays are broadcasted views of smaller arrays. * Added a ``local_partial_pixel_derivatives`` function that can be used to determine a matrix of partial derivatives of each world coordinate with respect to each pixel coordinate. * Updated wcslib to v6.4. * Improved the ``SlicedLowLevelWCS`` class in ``astropy.wcs.wcsapi`` to avoid storing chains of nested ``SlicedLowLevelWCS`` objects when applying multiple slicing operations in turn. * Added a ``wcs_info_str`` function to ``astropy.wcs.wcsapi`` to show a summary of an APE-14-compliant WCS as a string. * Added two new optional attributes to the APE 14 low-level WCS: ``pixel_axis_names`` and ``world_axis_names``. * Updated the WCS class to now correctly take and return ``Time`` objects in the high-level APE 14 API (e.g. ``pixel_to_world``. * ``SlicedLowLevelWCS`` now raises ``IndexError`` rather than ``ValueError`` on an invalid slice. * Added ``fit_wcs_from_points`` function to ``astropy.wcs.utils``. Fits a WCS object to set of matched detector/sky coordinates. * Fix various bugs in ``SlicedLowLevelWCS`` when the WCS being sliced was one dimensional. + API Changes > astropy.constants * Deprecated ``set_enabled_constants`` context manager. Use ``astropy.physical_constants`` and ``astropy.astronomical_constants``. > astropy.convolution * Removed the deprecated keyword argument ``interpolate_nan`` from ``convolve_fft``. * Removed the deprecated keyword argument ``stddev`` from ``Gaussian2DKernel``. * Deprecated and renamed ``MexicanHat1DKernel`` and ``MexicanHat2DKernel`` to ``RickerWavelet1DKernel`` and ``RickerWavelet2DKernel``. > astropy.coordinates * Removed the ``recommended_units`` attribute from Representations; it was deprecated since 3.0. * Removed the deprecated frame attribute classes, ``FrameAttribute``, ``TimeFrameAttribute``, ``QuantityFrameAttribute``, ``CartesianRepresentationFrameAttribute``; deprecated since 3.0. * Removed ``longitude`` and ``latitude`` attributes from ``EarthLocation``; deprecated since 2.0. * The ``DifferentialAttribute`` for frame classes now passes through any input to the ``allowed_classes`` if only one allowed class is specified, i.e. this now allows passing a quantity in for frame attributes that use ``DifferentialAttribute``. * Removed the deprecated ``galcen_ra`` and ``galcen_dec`` attributes from the ``Galactocentric`` frame. > astropy.extern * Remove the bundled ``six`` module. > astropy.io.ascii * Masked column handling has changed, see ``astropy.table`` entry below. > astropy.io.misc * Masked column handling has changed, see ``astropy.table`` entry below. * Removed deprecated ``usecPickle`` kwarg from ``fnunpickle`` and ``fnpickle``. > astropy.io.fits * Masked column handling has changed, see ``astropy.table`` entry below. * ``io.fits.Header`` has been made safe for subclasses for copying and slicing. As a result of this change, the private subclass ``CompImageHeader`` now always should be passed an explicit ``image_header``. * Removed the deprecated ``tolerance`` option in ``fitsdiff`` and ``io.fits.diff`` classes. * Removed deprecated keyword arguments for ``CompImageHDU``: ``compressionType``, ``tileSize``, ``hcompScale``, ``hcompSmooth``, ``quantizeLevel``. > astropy.io.votable * Changed ``pedantic`` argument to ``verify`` and change it to have three string-based options (``ignore``, ``warn``, and ``exception``) instead of just being a boolean. In addition, changed default to ``ignore``, which means that warnings will not be shown by default when loading VO tables. > astropy.modeling * Eliminates support for compound classes (but not compound instances!) * Slicing compound models more restrictive. * Shape of parameters now includes n_models as dimension. * Parameter instances now hold values instead of models. * Compound model parameters now share instance and value with constituent models. * No longer possible to assign slices of parameter values to model parameters attribute (it is possible to replace it with a complete array). * Many private attributes and methods have changed (see documentation). * Deprecated ``BlackBody1D`` model and ``blackbody_nu`` and ``blackbody_lambda`` functions. * The deprecated ``rotations.rotation_matrix_from_angle`` was removed. * Deprecated and renamed ``MexicanHat1D`` and ``MexicanHat2D`` to ``RickerWavelet1D`` and ``RickerWavelet2D``. * Deprecated ``modeling.utils.ExpressionTree``. > astropy.stats * Removed the ``iters`` keyword from sigma clipping stats functions. * Renamed the ``a`` parameter to ``data`` in biweight stat functions. * Renamed the ``a`` parameter to ``data`` in ``median_absolute_deviation``. * Renamed the ``conflevel`` keyword to ``confidence_level`` in ``poisson_conf_interval``. Usage of ``conflevel`` now issues ``AstropyDeprecationWarning``. * Renamed the ``conf`` keyword to ``confidence_level`` in ``binom_conf_interval`` and ``binned_binom_proportion``. Usage of ``conf`` now issues ``AstropyDeprecationWarning``. * Renamed the ``conf_lvl`` keyword to ``confidence_level`` in ``jackknife_stats``. Usage of ``conf_lvl`` now issues ``AstropyDeprecationWarning``. > astropy.table * The handling of masked columns in the ``Table`` class has changed in a way that may impact program behavior. Now a ``Table`` with ``masked=False`` may contain both ``Column`` and ``MaskedColumn`` objects, and adding a masked column or row to a table no longer "upgrades" the table and columns to masked. This means that tables with masked data which are read via ``Table.read()`` will now always have ``masked=False``, though specific columns will be masked as needed. Two new table properties ``has_masked_columns`` and ``has_masked_values`` were added. See the `Masking change in astropy 4.0 section within `_ for details. * Table operation functions such as ``join``, ``vstack``, ``hstack``, etc now always return a table with ``masked=False``, though the individual columns may be masked as necessary. * Changed implementation of ``Table.add_column()`` and ``Table.add_columns()`` methods. Now it is possible add any object(s) which can be converted or broadcasted to a valid column for the table. ``Table.__setitem__`` now just calls ``add_column``. * Changed default table configuration setting ``replace_warnings`` from ``['slice']`` to ``[]``. This removes the default warning when replacing a table column that is a slice of another column. * Removed the non-public method ``astropy.table.np_utils.recarray_fromrecords``. > astropy.tests * In addition to ``DeprecationWarning``, now ``FutureWarning`` and ``ImportWarning`` would also be turned into exceptions. * ``warnings_to_ignore_by_pyver`` option in ``enable_deprecations_as_exceptions()`` has changed. Please refer to API documentation. * Default settings for ``warnings_to_ignore_by_pyver`` are updated to remove very old warnings that are no longer relevant and to add a new warning caused by ``pytest-doctestplus``. > astropy.time * ``Time.get_ut1_utc`` now uses the auto-updated ``IERS_Auto`` by default, instead of the bundled ``IERS_B`` file. * Time formats that do not use ``val2`` now raise ValueError instead of silently ignoring a provided value. * Custom time formats can now accept floating-point types with extended precision. Existing time formats raise exceptions rather than discarding extended precision through conversion to ordinary floating-point. * Time formats (implemented in subclasses of ``TimeFormat``) now have their input and output routines more thoroughly validated, making it more difficult to create damaged ``Time`` objects. * The ``TimeDelta.to_value()`` method now can also take the ``format`` name as its argument, in which case the value will be calculated using the ``TimeFormat`` machinery. For this case, one can also pass a ``subfmt`` argument to retrieve the value in another form than ``float``. > astropy.timeseries * Keyword ``midpoint_epoch`` is renamed to ``epoch_time``. > astropy.uncertainty * ``Distribution`` was rewritten such that it deals better with subclasses. As a result, Quantity distributions now behave correctly with ``to`` methods yielding new distributions of the kind expected for the starting distribution, and ``to_value`` yielding ``NdarrayDistribution`` instances. > astropy.units * For consistency with ``ndarray``, scalar ``Quantity.value`` will now return a numpy scalar rather than a python one. This should help keep track of precision better, but may lead to unexpected results for the rare cases where numpy scalars behave differently than python ones (e.g., taking the square root of a negative number). * Removed the ``magnitude_zero_points`` module, which was deprecated in favour of ``astropy.units.photometric`` since 3.1. * ``EquivalentUnitsList`` now has a ``_repr_html_`` method to output a HTML table on a call to ``find_equivalent_units`` in Jupyter notebooks. > astropy.utils * ``download_file`` and related functions now accept a list of fallback sources, and they are able to update the cache at the user's request. * Allow ``astropy.utils.console.ProgressBarOrSpinner.map`` and ``.map_unordered`` to take an argument ``multiprocessing_start_method`` to control how subprocesses are started; the different methods (``fork``, ``spawn``, and ``forkserver``) have different implications in terms of security, efficiency, and behavioural anomalies. The option is useful in particular for cross-platform testing because Windows supports only ``spawn`` while Linux defaults to ``fork``. * All operations that act on the astropy download cache now take an argument ``pkgname`` that allows one to specify which package's cache to use. * Removed deprecated ``funcsigs`` and ``futures`` from ``astropy.utils.compat``. * Removed the deprecated ``astropy.utils.compat.numpy`` module. * Deprecated ``InheritDocstrings`` as it is natively supported by Sphinx 1.7 or higher. * Deprecated ``astropy.utils.timer`` module, which has been moved to ``astroquery.utils.timer`` and will be part of ``astroquery`` 0.4.0. * Deprecated ``astropy.utils.misc.set_locale`` function, as it is meant for internal use only. * The implementation of ``data_info.DataInfo`` has changed (for a considerable performance boost). Generally, this should not affect simple subclasses, but because the class now uses ``__slots__`` any attributes on the class have to be explicitly given a slot. * ``IERS`` tables now use ``nan`` to mark missing values (rather than ``1e20``). > astropy.visualization * The default ``clip`` value is now ``False`` in ``ImageNormalize``. * The default ``clip`` value is now ``False`` in ``simple_norm``. * Infinite values are now excluded when calculating limits in ``ManualInterval`` and ``MinMaxInterval``. They were already excluded in all other interval classes. + Bug Fixes > astropy.coordinates * The ``QuantityAttribute`` class now supports a None default value if a unit is specified. * When ``Representation`` classes with the same name are defined, this no longer leads to a ``ValueError``, but instead to a warning and the removal of both from the name registry (i.e., one either has to use the class itself to set, e.g., ``representation_type``, or refer to the class by its fully qualified name). > astropy.io.fits * Implemented skip (after warning) of header cards with reserved keywords in ``table_to_hdu``. * Add ``AstropyDeprecationWarning`` to ``read_table_fits`` when ``hdu=`` is selected, but does not match single present table HDU. > astropy.io.votable * Ignore BINARY2 null mask bits for string values on parsing a VOTable. In this way, the reader should never create masked values for string types. * Corrected a spurious warning issued for the ``value`` attribute of the ``