v0.3.1 (19 November 2018)¶
This minor release fixes the builds of our documentation, adds continuous integration (CI) testing of those builds, introduces a how-to guide for future releases, and otherwise slightly modifies our docs and CI configurations. (PR313, PR314). These are all backend changes — for aospy users, there are no changes from v0.3.0.
v0.3 (15 November 2018)¶
This release adds a number of new features, fixes many bugs, and improves our documentation. It includes several deprecations, other breaking changes, and modifications to aospy’s list of required dependencies. We are grateful for three new contributors this time around and are eager to grow the user- and developer-base further moving forward! Highlights (full changelog below these):
- Support for Python 3.7
Varobjects can now be recursively computed in terms of other
- Thanks to
xarray.CFTimeIndex, no longer require special logic/handling of out-of-range datetimes
- Improved handling of region longitude bounds in
Regionvia new New
- Drop support for Python 2.7 and 3.4, since our core upstream dependency xarray is also dropping these soon (PR255, PR280). By Spencer Hill.
aospy.Regionno longer can be instantiated using
lon_boundskeywords. These have been replaced with the more explicit
north_bound(PR266). By Spencer Hill.
constants.pymodule. Physical constants used internally by aospy are now stored in
_constants.py(fixes GH50 via PR223). By Micah Kim.
Unitsclass, so now the
unitsattribute of the
Varclass is a string. (fixes GH50 via PR222). By Micah Kim.
CalcInterfaceclass. Now, to instantiate a
Calcobject, pass it directly the parameters that previously would have been passed to
CalcInterface(fixes GH249 via PR250). By Spencer Hill.
utils.times.convert_scalar_to_indexable_coord, since as of xarray version 0.10.3 release, the functionality is no longer necessary (fixes GH268 via PR269. By Spencer Hill.
Var(fixes GH281 via PR282). By Spencer Hill.
- Improve compatibility for data following IRIDL conventions or NOAA
data formats. Specifically, several alternate names are defined in
GRID_ATTRS, while there is no longer an assumption that
BOUNDS_STRis a coordinate of
time_weights(fixes GH293 and GH299 via PR309). By James Doss-Gollin.
- aospy now uses Versioneer to manage its version strings. By Spencer Hill (PR311).
- Add support for Python 3.7. (closes GH292 via PR306. By Spencer Hill.
- Use an
xarray.CFTimeIndexfor dates from non-standard calendars and outside the Timestamp-valid range. This eliminates the need for the prior workaround, which shifted dates to within the range 1678 to 2262 prior to indexing (closes GH98 via PR273). By Spencer Clark.
Longitudeclass for representing and comparing longitudes. Used internally by
aospy.Regionto construct masks, but could also be useful for users outside the standard aospy workflow (PR266). By Spencer Hill.
- Add support for
stdfor data that doesn’t conform to aospy naming conventions, making these methods now useful in more interactive contexts in addition to within the standard main script-based work flow (PR266). By Spencer Hill.
- Raise an exception with an informative message if
submit_mult_calcs(and thus the main script) generates zero calculations, which can happen if one of the parameters is accidentally set to an empty list (closes GH253 via PR254). By Spencer Hill.
- Suppress warnings from xarray when loading data whose dates extend outside the range supported by the numpy.datetime64 datatype. aospy has its own logic to deal with these cases (closes GH221 via PR239). By Spencer Hill.
- Add units and description from
Varobjects to output netcdf files (closes GH201 via PR232). By Micah Kim.
- Remove potentially confusing attributes from example netcdf files. (closes GH214 via PR216). By Micah Kim.
- Cleanup logic for Dataset drop on dimensions with and without coords. Use Dataset isel instead. (closes GH142 via PR241). By Micah Kim.
xr.open_mfdatasetin DataLoaders. These options control how variables and coordinates are concatenated when loaded in from multiple files; by default
coords='minimal', but there could be use cases where other options are desired. See the xarray documentation for more information (closes GH236 via PR240). By Spencer Clark.
- Allow for variables to be functions of other computed variables (closes GH3 via PR263). By Spencer Clark.
- Add a
grid_attrsargument to the
Modelconstructor to allow the specification of custom alternative names for grid attributes like time, latitude, or longitude (closes GH182 via PR297). By Spencer Clark.
- Use the new
Longitudeclass to support any longitude numbering convention (e.g. -180 to 180, 0 to 360, or any other) for both defining
Regionobjects and for input data to be masked. Fixes bug wherein a region could be silently partially clipped off when masking input data with longitudes of a different numbering convention. Fixes GH229 via PR266. By Spencer Hill.
- Cast input DataArrays with datatype
np.float64as a workaround for incorrectly computed means on float32 arrays in bottleneck (see pydata/xarray#1346). If one would like to disable this behavior (i.e. restore the original behavior before this fix), one can set the
upcast_float32keyword argument in their DataLoaders to
False. Fixes GH217 via PR218. By Spencer Clark.
- Switch from using
netcdf4as the engine when writing to netCDF files to avoid bugs when using
libnetcdfversion 4.5.0 (PR235). By Spencer Hill.
submit_mult_calc) now skips calculations that involve time reductions of non-time-defined variables.
Calcnow raises a ValueError when instantiated with a non-time-defined variable but has one or more time-defined reductions. (closes GH202 via PR242). By Micah Kim.
- Create Travis CI environment that tests against the xarray development branch. (closes GH224 via :pull: 226). By Micah Kim.
runipyto test the tutorial Jupyter notebook, as
runipyis deprecated (PR239). By Spencer Hill.
- Add flake8 to Travis CI environment to check that new code adheres to pep8 style. Add verbose flag to pytest test suite. (closes GH234 via PR237). By Micah Kim.
v0.2 (26 September 2017)¶
This release includes some new features plus several bugfixes. The bugfixes include some that previously made using aospy on pressure-interpolated data very problematic. We have also improved support for reading in data from the WRF and CAM atmospheric models.
As of this release, aospy has at least 2(!) confirmed regular users that aren’t the original aospy developers, bringing the worldwide total of users up to at least 4. The first user-generated Github Issues have now also been created. We’re a real thing!
multiprocessto parallelize computations (closes GH169 via PR172). This enables the optional use of an external
distributed.Clientto leverage computational resources across multiple nodes of a cluster. By Spencer Clark.
- Improve support for WRF and NCAR CAM model data by adding the internal names they use for grid attributes to aospy’s lists of potential names to search for. By Spencer Hill.
- Allow a user to specify a custom preprocessing function in all DataLoaders to prepare data for processing with aospy. This could be used, for example, to add a CF-compliant units attribute to the time coordinate if it is not present in a set of files. Addresses GH177 via PR180. By Spencer Clark.
model.py; no longer needed, and also prevents warning message from dask regarding location of
get_syncfunction (PR195). By Spencer Hill.
- Remove faulty logic for calculations with data coming from multiple runs. Eventually this feature will be properly implemented (fixes GH117 via PR178). By Spencer Hill.
- Only run tests that require optional dependencies if those dependencies are actually installed (fixes GH167 via PR176). By Spencer Hill.
- Remove obsolete
operator.pymodule (fixes GH174 via PR175). By Spencer Clark.
- Fix workaround for dates with years less than 1678 to support units attributes with a reference date years not equal to 0001 (fixes GH188 via PR189). By Spencer Clark.
- Fix bug which would prevent users from analyzing a subset within the Timestamp-valid range from a dataset which included data from outside the Timestamp-valid range (fixed in PR189). By Spencer Clark.
- Toggle the
Truewhen reading in netCDF files to enable missing values encoded as floats to be converted to NaN’s (fixes GH190 via PR192). By Spencer Clark.
- Force regional calculations to mask gridcell weights where the loaded datapoints were invalid instead of just masking points outside the desired region (fixes GH190 via PR192). By Spencer Clark.
- Retain original input data’s mask during gridpoint-by-gridpoint temporal averages (fixes GH193 via PR196). By Spencer Hill.
- Always write output to a tar file in serial to prevent empty header file errors (fixes GH75 via PR197). By Spencer Clark.
aospyto use grid attributes that are only defined in
Runobjects. Previously if a grid attribute were defined only in a
Runobject and not also in the Run’s corresponding
Model, an error would be raised (fixes GH187 via PR199). By Spencer Clark.
- When input data for a calculation has a time bounds array, overwrite its time array with the average of the start and end times for each timestep. Prevents bug wherein time arrays equal to either the start or end bounds get mistakenly grouped into the wrong time interval, i.e. the wrong month or year (fixes :issue 185 via PR200). By Spencer Hill.
v0.1.2 (30 March 2017)¶
This release improves the process of submitting multiple calculations for automatic execution. The user interface, documentation, internal logic, and packaging all received upgrades and/or bugfixes.
We also now have a mailing list. Join it to follow and/or post your own usage questions, bug reports, suggestions, etc.
- Include an example library of aospy objects that works out-of-the-box with the provided example main script (PR155). By Spencer Clark and Spencer Hill.
- Improve Examples page of the documentation by using this new example object library (PR164). By Spencer Hill.
- Improve readability/usability of the included example script
aospy_main.pyfor submitting aospy calculations by moving all internal logic into new
automate.pymodule (PR155). By Spencer Clark and Spencer Hill.
- Enable user to specify whether or not to write output to .tar files (in addition to the standard output). Also document an error that occurs when writing output to .tar files for sufficiently old versions of tar (including the version that ships standard on MacOS), and print a warning when errors are caught during the ‘tar’ call (PR160). By Spencer Hill.
- Update packaging specifications such that the example main script and tutorial notebook actually ship with aospy as intended (fixes GH149 via PR161). By Spencer Hill.
- Use the ‘scipy’ engine for the xarray.DataArray.to_netcdf call when writing aospy calculation outputs to disk to prevent a bug when trying to re-write to an existing netCDF file (fixes GH157 via PR160). By Spencer Hill.
v0.1.1 (2 March 2017)¶
This release includes fixes for a number of bugs mistakenly introduced
in the refactoring of the variable loading step of
(PR90), as well as support for xarray version 0.9.1.
- Support for xarray version 0.9.1 and require it or a later xarray version. By Spencer Clark and Spencer Hill.
- Better support for variable names relating to “bounds” dimension of input data files. “bnds”, “bounds”, and “nv” now all supported (PR140). By Spencer Hill.
- When coercing dims of input data to aospy’s internal names, for scalars change only the name; for non-scalars change the name, force them to have a coord, and copy over their attrs (PR140). By Spencer Hill.
- Fix bug involving loading data that has dims that lack coords (which is possible as of xarray v0.9.0). By Spencer Hill.
- Fix an instance where the name for pressure half levels was mistakenly replaced with the name for the pressure full levels (PR126). By Spencer Clark.
- Prevent workaround for dates outside the
pd.Timestampvalid range from being applied to dates within the
pd.Timestampvalid range (PR128). By Spencer Clark.
- Ensure that all DataArrays associated with
aospy.Varobjects have a time weights coordinate with CF-compliant time units. This allows them to be cast as the type
np.timedelta64, and be safely converted to have units of days before taking time-weighted averages (PR128). By Spencer Clark.
- Fix a bug where the time weights were not subset in time prior to
taking a time weighted average; this caused computed seasonal
averages to be too small. To prevent this from failing silently
again, we now raise a
ValueErrorif the time coordinate of the time weights is not identical to the time coordinate of the array associated with the
aospy.Var(PR128). By Spencer Clark.
- Enable calculations to be completed using data saved as a single time-slice on disk (fixes GH132 through PR135). By Spencer Clark.
- Fix bug where workaround for dates outside the
pd.Timestampvalid range caused a mismatch between the data loaded and the data requested (fixes GH138 through PR139). By Spencer Clark.