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March 2021
- 1 participants
- 1 discussions
We are pleased to announce a new release of GeoPandas!
Highlights: a revamped documentation site (http://geopandas.
readthedocs.io/en/stable/), read_file automatically recognizes zip files
(without prepending zip:// to the path), access to pandas' plotting methods
directly from the GeoDataFrame, and lots of other new features,
enhancements, and bug fixes.
See below for more detailed notes. Thanks to all contributors for making
this possible!
---
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
Documentation can be found here: http://geopandas.readthedocs.io/en/stable/
*What's new?*
GeoPandas 0.9.0 features a long list of new features, enhancements and bug
fixes, see the full list below. In addition, there are many *documentation
improvements* and a restyled and restructured website with a new logo (#1564
<https://github.com/geopandas/geopandas/pull/1564>, #1579
<https://github.com/geopandas/geopandas/pull/1579>, #1617
<https://github.com/geopandas/geopandas/pull/1617>, #1668
<https://github.com/geopandas/geopandas/pull/1668>, #1731
<https://github.com/geopandas/geopandas/pull/1731>, #1750
<https://github.com/geopandas/geopandas/pull/1750>, #1757
<https://github.com/geopandas/geopandas/pull/1757>, #1759
<https://github.com/geopandas/geopandas/pull/1759>).
*New features and improvements:*
- The geopandas.read_file function now accepts more general file-like
objects (e.g. fsspec open file objects). It will now also automatically
recognize zipped files (#1535
<https://github.com/geopandas/geopandas/pull/1535>).
- The GeoDataFrame.plot() method now provides access to the pandas
plotting functionality for the non-geometry columns, either using the
kind keyword or the accessor method (e.g. gdf.plot(kind="bar") or
gdf.plot.bar()) (#1465 <https://github.com/geopandas/geopandas/pull/1465>
).
- New from_wkt(), from_wkb(), to_wkt(), to_wkb() methods for GeoSeries
to construct a GeoSeries from geometries in WKT or WKB representation, or
to convert a GeoSeries to a pandas Seriew with WKT or WKB values (#1710
<https://github.com/geopandas/geopandas/pull/1710>).
- New GeoSeries.z attribute to access the z-coordinates of Point
geometries (similar to the existing .x and .y attributes) (#1773
<https://github.com/geopandas/geopandas/pull/1773>).
- The to_crs() method now handles missing values (#1618
<https://github.com/geopandas/geopandas/pull/1618>).
- Support for pandas' new .attrs functionality (#1658
<https://github.com/geopandas/geopandas/pull/1658>).
- The dissolve() method now allows dissolving by no column (by=None) to
create a union of all geometries (single-row GeoDataFrame) (#1568
<https://github.com/geopandas/geopandas/pull/1568>).
- New estimate_utm_crs() method on GeoSeries/GeoDataFrame to determine
the UTM CRS based on the bounds (#1646
<https://github.com/geopandas/geopandas/pull/1646>).
- GeoDataFrame.from_dict() now accepts geometry and crs keywords (#1619
<https://github.com/geopandas/geopandas/pull/1619>).
- GeoDataFrame.to_postgis() and geopandas.read_postgis() now supports
both sqlalchemy engine and connection objects (#1638
<https://github.com/geopandas/geopandas/pull/1638>).
- The GeoDataFrame.explode() method now allows exploding based on a
non-geometry column, using the pandas implementation (#1720
<https://github.com/geopandas/geopandas/pull/1720>).
- Performance improvement in GeoDataFrame/GeoSeries.explode() when using
the PyGEOS backend (#1693
<https://github.com/geopandas/geopandas/pull/1693>).
- The binary operation and predicate methods (eg intersection(),
intersects()) have a new align keyword which allows optionally not
aligning on the index before performing the operation with align=False (
#1668 <https://github.com/geopandas/geopandas/pull/1668>).
- The GeoDataFrame.dissolve() method now supports all relevant keywords
of groupby(), i.e. the level, sort, observed and dropna keywords (#1845
<https://github.com/geopandas/geopandas/pull/1845>).
- The geopandas.overlay() function now accepts make_valid=False to skip
the step to ensure the input geometries are valid using buffer(0) (#1802
<https://github.com/geopandas/geopandas/pull/1802>).
- The GeoDataFrame.to_json() method gained a drop_id keyword to
optionally not write the GeoDataFrame's index as the "id" field in the
resulting JSON (#1637 <https://github.com/geopandas/geopandas/pull/1637>
).
- A new aspect keyword in the plotting methods to optionally allow
retaining the original aspect (#1512
<https://github.com/geopandas/geopandas/pull/1512>)
- A new interval keyword in the legend_kwds group of the plot() method
to control the appearance of the legend labels when using a classification
scheme (#1605 <https://github.com/geopandas/geopandas/pull/1605>).
- The spatial index of a GeoSeries (accessed with the sindex attribute)
is now stored on the underlying array. This ensures that the spatial index
is preserved in more operations where possible, and that multiple geometry
columns of a GeoDataFrame can each have a spatial index (#1444
<https://github.com/geopandas/geopandas/pull/1444>).
- Addition of a has_sindex attribute on the GeoSeries/GeoDataFrame to
check if a spatial index has already been initialized (#1627
<https://github.com/geopandas/geopandas/pull/1627>).
- The geopandas.testing.assert_geoseries_equal() and
assert_geodataframe_equal() testing utilities now have a normalize
keyword (False by default) to normalize geometries before comparing for
equality (#1826 <https://github.com/geopandas/geopandas/pull/1826>).
Those functions now also give a more informative error message when failing
(#1808 <https://github.com/geopandas/geopandas/pull/1808>).
*Deprecations and compatibility notes:*
- The is_ring attribute currently returns True for Polygons. In the
future, this will be False (#1631
<https://github.com/geopandas/geopandas/pull/1631>). In addition, start
to check it for LineStrings and LinearRings (instead of always returning
False).
- The deprecated objects keyword in the intersection() method of the
GeoDataFrame/GeoSeries.sindex spatial index object has been removed (
#1444 <https://github.com/geopandas/geopandas/pull/1444>).
*Bug fixes:*
- Fix regression in the plot() method raising an error with empty
geometries (#1702 <https://github.com/geopandas/geopandas/pull/1702>,
#1828 <https://github.com/geopandas/geopandas/pull/1828>).
- Fix geopandas.overlay() to preserve geometries of the correct type
which are nested within a GeometryCollection as a result of the overlay
operation (#1582 <https://github.com/geopandas/geopandas/pull/1582>). In
addition, a warning will now be raised if geometries of different type are
dropped from the result (#1554
<https://github.com/geopandas/geopandas/pull/1554>).
- Fix the repr of an empty GeoSeries to not show spurious warnings (#1673
<https://github.com/geopandas/geopandas/pull/1673>).
- Fix the .crs for empty GeoDataFrames (#1560
<https://github.com/geopandas/geopandas/pull/1560>).
- Fix geopandas.clip to preserve the correct geometry column name (#1566
<https://github.com/geopandas/geopandas/pull/1566>).
- Fix bug in plot() method when using legend_kwds with multiple subplots
(#1583 <https://github.com/geopandas/geopandas/pull/1583>)
- Fix spurious warning with missing_kwds keyword of the plot() method
when there are no areas with missing data (#1600
<https://github.com/geopandas/geopandas/pull/1600>).
- Fix the plot() method to correctly align values passed to the column
keyword as a pandas Series (#1670
<https://github.com/geopandas/geopandas/pull/1670>).
- Fix bug in plotting MultiPoints when passing values to determine the
color (#1694 <https://github.com/geopandas/geopandas/pull/1694>)
- The rename_geometry() method now raises a more informative error
message when a duplicate column name is used (#1602
<https://github.com/geopandas/geopandas/pull/1602>).
- Fix explode() method to preserve the CRS (#1655
<https://github.com/geopandas/geopandas/pull/1655>)
- Fix the GeoSeries.apply() method to again accept the convert_dtype
keyword to be consistent with pandas (#1636
<https://github.com/geopandas/geopandas/pull/1636>).
- Fix GeoDataFrame.apply() to preserve the CRS when possible (#1848
<https://github.com/geopandas/geopandas/pull/1848>).
- Fix bug in containment test as geom in geoseries (#1753
<https://github.com/geopandas/geopandas/pull/1753>).
- The shift() method of a GeoSeries/GeoDataFrame now preserves the CRS (
#1744 <https://github.com/geopandas/geopandas/pull/1744>).
- The PostGIS IO functionality now quotes table names to ensure it works
with case-sensitive names (#1825
<https://github.com/geopandas/geopandas/pull/1825>).
- Fix the GeoSeries constructor without passing data but only an index (
#1798 <https://github.com/geopandas/geopandas/pull/1798>).
*Notes on (optional) dependencies:*
- GeoPandas 0.9.0 dropped support for Python 3.5. Further, the minimum
required versions are pandas 0.24, numpy 1.15 and shapely 1.6 and fiona 1.8.
- The descartes package is no longer required for plotting polygons.
This functionality is now included by default in GeoPandas itself, when
matplotlib is available (#1677
<https://github.com/geopandas/geopandas/pull/1677>).
- Fiona is now only imported when used in read_file/to_file. This means
you can now force geopandas to install without fiona installed (although it
is still a default requirement) (#1775
<https://github.com/geopandas/geopandas/pull/1775>).
- Compatibility with the upcoming Shapely 1.8 (#1659
<https://github.com/geopandas/geopandas/pull/1659>, #1662
<https://github.com/geopandas/geopandas/pull/1662>, #1819
<https://github.com/geopandas/geopandas/pull/1819>).
*Acknowledgments*
Thanks to everyone who contributed to this release!
A total of 29 people contributed patches to this release. People with a "+"
by their names contributed a patch for the first time.
- Adam J. Stewart +
- Adrian Garcia Badaracco
- Alan D. Snow
- Brendan Ward
- Charlie +
- Dave Rench McCauley +
- Flavin +
- Giacomo Caria +
- Ian Rose
- Imanol +
- Isaac Boates +
- Jacob Hayes +
- Jake Clarke +
- James McBride
- Joris Van den Bossche
- Martijn Visser +
- Martin Fleischmann
- Nick Hand +
- Rowan Molony
- Sergio Rey
- Sönke Schmachtel +
- Tim Gates +
- WANG Aiyong +
- Will Schlitzer +
- abonte
- bretttully +
- donlo
- sangarshanan
- vangorade +
*-- The GeoPandas developers*
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