GeoPython September 2019

geopython@python.org

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ANN: GeoPandas 0.6.0 released
by Joris Van den Bossche 29 Jun '20

29 Jun '20

We are pleased to announce a new release of GeoPandas! GeoPandas 0.6.0 features a refactor of the internals based on the new pandas ExtensionArray interface, for better integration with pandas. Although this change should keep the user interface mostly stable, there are a few changes summarized below. Further, this release includes a nice set of other improvements and bug fixes. See the full list below. Important note! This will be the last release to support Python 2.7 (#1031 <https://github.com/geopandas/geopandas/issues/1031>) GeoPandas can be installed with conda from the conda-forge channel (conda install -c conda-forge geopandas) or with pip assuming the dependencies are available for your platform or are already installed (pip install geopandas ). Please report any issues, or request new features via our GitHub repository: https://github.com/geopandas/geopandas/issues *What is it?* GeoPandas is an open source project to make working with geospatial data in python easier. GeoPandas combines the capabilities of pandas and shapely, providing geospatial operations in pandas and a high-level interface to multiple shapely geometries. GeoPandas enables you to easily do operations in python that would otherwise require a spatial database such as PostGIS. Documentation can be found here: http://geopandas.readthedocs.io/en/stable/ *What's new?* API changes: - A refactor of the internals based on the pandas ExtensionArray interface (#1000 <https://github.com/geopandas/geopandas/issues/1000>). The main user visible changes are: - The .dtype of a GeoSeries is now a 'geometry' dtype (and no longer a numpy object dtype). - The .values of a GeoSeries now returns a custom GeometryArray, and no longer a numpy array. To get back a numpy array of Shapely scalars, you can convert explicitly using np.asarray(..). - The GeoSeries constructor now raises a warning when passed non-geometry data. Currently the constructor falls back to return a pandas Series, but in the future this will raise an error (#1085 <https://github.com/geopandas/geopandas/pull/1085>). - The missing value handling has been changed to now separate the concepts of missing geometries and empty geometries (#601 <https://github.com/geopandas/geopandas/issues/601>, 1062). In practice this means that (see the docs <https://geopandas.readthedocs.io/en/v0.6.0/missing_empty.html> for more details): - GeoSeries.isna now considers only missing values, and if you want to check for empty geometries, you can use GeoSeries.is_empty ( GeoDataFrame.isna already only looked at missing values). - GeoSeries.dropna now actually drops missing values (before it didn't drop either missing or empty geometries) - GeoSeries.fillna only fills missing values (behaviour unchanged). - GeoSeries.align uses missing values instead of empty geometries by default to fill non-matching index entries. New features and improvements: - Addition of a GeoSeries.affine_transform method, equivalent of Shapely's function (#1008 <https://github.com/geopandas/geopandas/pull/1008>). - Addition of a GeoDataFrame.rename_geometry method to easily rename the active geometry column (#1053 <https://github.com/geopandas/geopandas/issues/1053>). - Addition of geopandas.show_versions() function, which can be used to give an overview of the installed libraries in bug reports (#899 <https://github.com/geopandas/geopandas/issues/899>). - The legend_kwds keyword of the plot() method can now also be used to specify keywords for the color bar (#1102 <https://github.com/geopandas/geopandas/pull/1102>). - Performance improvement in the sjoin() operation by re-using existing spatial index of the input dataframes, if available (#789 <https://github.com/geopandas/geopandas/pull/789>). - Updated documentation to work with latest version of geoplot and contextily (#1044 <https://github.com/geopandas/geopandas/pull/1044>, #1088 <https://github.com/geopandas/geopandas/pull/1088>). - A new geopandas.options configuration, with currently a single option to control the display precision of the coordinates ( options.display_precision). The default is now to show less coordinates (3 for projected and 5 for geographic coordinates), but the default can be overridden with the option. Bug fixes: - Also try to use pysal instead of mapclassify if available (#1082 <https://github.com/geopandas/geopandas/pull/1082>). - The GeoDataFrame.astype() method now correctly returns a GeoDataFrame if the geometry column is preserved (#1009 <https://github.com/geopandas/geopandas/pull/1009>). - The to_crs method now uses always_xy=True to ensure correct lon/lat order handling for pyproj>=2.2.0 (#1122 <https://github.com/geopandas/geopandas/pull/1122>). - Fixed passing list-like colors in the plot() method in case of "multi" geometries (#1119 <https://github.com/geopandas/geopandas/pull/1119>). - Fixed the coloring of shapes and colorbar when passing a custom norm in the plot() method (#1091 <https://github.com/geopandas/geopandas/pull/1091>, #1089 <https://github.com/geopandas/geopandas/pull/1089>). - Fixed GeoDataFrame.to_file to preserve VFS file paths (e.g. when a "s3://" path is specified) (#1124 <https://github.com/geopandas/geopandas/pull/1124>). - Fixed failing case in geopandas.sjoin with empty geometries (#1138 <https://github.com/geopandas/geopandas/pull/1138>). In addition, the minimum required versions of some dependencies have been increased: GeoPandas now requires pandas >=0.23.4 and matplotlib >=2.0.1 ( #1002 <https://github.com/geopandas/geopandas/pull/1002>). *Acknowledgments* Thanks to everyone who contributed to this release! A total of 20 people contributed patches to this release. People with a "+" by their names contributed a patch for the first time. - Alan D. Snow + - Aleksey Bilogur - Archana Alva + - François Leblanc - Geir Arne Hjelle - Ian Rose + - James Gaboardi + - James McBride - Joris Van den Bossche - Joshua Wilson - Kushal Borkar + - Leah Wasser - Martin Fleischmann - Mike Taves + - René Buffat + - Sergio Rey + - Thomas Pinder + - awa5114 + - donlo + - jbrockmendel + *-- The GeoPandas developers*

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GeoPython September 2019