On 2023-09-12 18:58, Joel Breazeale via Cygwin wrote:
The shapely Python 3.9 package is failing to build. Please see the
messages in red and the one in green below:
[bin]$ /usr/local/bin/pip3.9 install shapely
Collecting shapely
Using cached shapely-2.0.1.tar.gz (275 kB)
Installing build dependencies ... done
Getting requirements to build wheel ... done
Installing backend dependencies ... done
Preparing metadata (pyproject.toml) ... done
Requirement already satisfied: numpy>=1.14 in
/usr/local/lib/python3.9/site-packages (from shapely) (1.25.2)
Building wheels for collected packages: shapely
Building wheel for shapely (pyproject.toml) ... error
error: *subprocess-exited-with-error*
× Building wheel for shapely (pyproject.toml) did not run successfully.
│ exit code: 1
╰─> [103 lines of output]
<string>:8: DeprecationWarning: pkg_resources is deprecated as an
API. See https://setuptools.pypa.io/en/latest/pkg_resources.html
Could not find geos-config executable. Either append the path to
geos-config to PATH or manually provide the include_dirs, library_dirs,
libraries and other link args for compiling against a GEOS version >=3.5.
running bdist_wheel
running build
running build_py
creating build
creating build/lib.cygwin-3.4.9-x86_64-cpython-39
creating build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely
copying shapely/affinity.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely
copying shapely/constructive.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely
copying shapely/coordinates.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely
copying shapely/coords.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely
copying shapely/creation.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely
copying shapely/decorators.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely
copying shapely/errors.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely
copying shapely/geos.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely
copying shapely/io.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely
copying shapely/linear.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely
copying shapely/measurement.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely
copying shapely/ops.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely
copying shapely/plotting.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely
copying shapely/predicates.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely
copying shapely/prepared.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely
copying shapely/set_operations.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely
copying shapely/speedups.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely
copying shapely/strtree.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely
copying shapely/testing.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely
copying shapely/validation.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely
copying shapely/wkb.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely
copying shapely/wkt.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely
copying shapely/_enum.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely
copying shapely/_geometry.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely
copying shapely/_ragged_array.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely
copying shapely/_version.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely
copying shapely/__init__.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely
creating build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/algorithms
copying shapely/algorithms/cga.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/algorithms
copying shapely/algorithms/polylabel.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/algorithms
copying shapely/algorithms/__init__.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/algorithms
creating build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/geometry
copying shapely/geometry/base.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/geometry
copying shapely/geometry/collection.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/geometry
copying shapely/geometry/conftest.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/geometry
copying shapely/geometry/geo.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/geometry
copying shapely/geometry/linestring.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/geometry
copying shapely/geometry/multilinestring.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/geometry
copying shapely/geometry/multipoint.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/geometry
copying shapely/geometry/multipolygon.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/geometry
copying shapely/geometry/point.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/geometry
copying shapely/geometry/polygon.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/geometry
copying shapely/geometry/__init__.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/geometry
creating build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/tests
copying shapely/tests/common.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/tests
copying shapely/tests/test_constructive.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/tests
copying shapely/tests/test_coordinates.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/tests
copying shapely/tests/test_creation.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/tests
copying shapely/tests/test_creation_indices.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/tests
copying shapely/tests/test_geometry.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/tests
copying shapely/tests/test_io.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/tests
copying shapely/tests/test_linear.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/tests
copying shapely/tests/test_measurement.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/tests
copying shapely/tests/test_misc.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/tests
copying shapely/tests/test_plotting.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/tests
copying shapely/tests/test_predicates.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/tests
copying shapely/tests/test_ragged_array.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/tests
copying shapely/tests/test_set_operations.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/tests
copying shapely/tests/test_strtree.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/tests
copying shapely/tests/test_testing.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/tests
copying shapely/tests/__init__.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/tests
creating build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/vectorized
copying shapely/vectorized/__init__.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/vectorized
creating
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/tests/geometry
copying shapely/tests/geometry/test_collection.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/tests/geometry
copying shapely/tests/geometry/test_coords.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/tests/geometry
copying shapely/tests/geometry/test_decimal.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/tests/geometry
copying shapely/tests/geometry/test_emptiness.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/tests/geometry
copying shapely/tests/geometry/test_format.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/tests/geometry
copying shapely/tests/geometry/test_geometry_base.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/tests/geometry
copying shapely/tests/geometry/test_hash.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/tests/geometry
copying shapely/tests/geometry/test_linestring.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/tests/geometry
copying shapely/tests/geometry/test_multi.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/tests/geometry
copying shapely/tests/geometry/test_multilinestring.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/tests/geometry
copying shapely/tests/geometry/test_multipoint.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/tests/geometry
copying shapely/tests/geometry/test_multipolygon.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/tests/geometry
copying shapely/tests/geometry/test_point.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/tests/geometry
copying shapely/tests/geometry/test_polygon.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/tests/geometry
copying shapely/tests/geometry/__init__.py ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/tests/geometry
copying shapely/_geos.pxd ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely
copying shapely/_pygeos_api.pxd ->
build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely
UPDATING build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/_version.py
set build/lib.cygwin-3.4.9-x86_64-cpython-39/shapely/_version.py to
'2.0.1'
running build_ext
building 'shapely.lib' extension
creating build/temp.cygwin-3.4.9-x86_64-cpython-39
creating build/temp.cygwin-3.4.9-x86_64-cpython-39/src
gcc -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall
-I/usr/include/python3.9
-I/tmp/pip-build-env-udfc5yaz/overlay/lib/python3.9/site-packages/numpy/core/include
-c src/c_api.c -o build/temp.cygwin-3.4.9-x86_64-cpython-39/src/c_api.o
In file included from src/c_api.h:22,
from src/c_api.c:15:
src/geos.h:15:10: fatal error: geos_c.h: No such file or directory
15 | #include <geos_c.h>
| ^~~~~~~~~~
compilation terminated.
error: command '/usr/bin/gcc' failed with exit code 1
[end of output]
note: This error originates from a subprocess, and is likely not a
problem with pip.
ERROR: Failed building wheel for shapely
Failed to build shapely
ERROR: Could not build wheels for shapely, which is required to install
pyproject.toml-based projects
[bin]$
I presume the inability to find geos-config then caused geos_c.h to not be
able to be found.
Both are part of the same package.
I have shapely installed and working under Homebrew (Python 3.11.5), Oracle
Linux 9.2 under VirtualBox (Python 3.9.16) and Oracle Linux 8 (Python
3.11.4), just not under cygwin.
What do you think is the fix for this issue?
$ cygcheck -p geos_c.h
Found 3 matches for geos_c.h
libgeos-devel-3.10.3-1 - libgeos-devel: Geometry Engine for Topology - (devel)
libgeos-devel-3.11.0-1 - libgeos-devel: Geometry Engine for Topology - (devel)
libgeos-devel-3.11.1-1 - libgeos-devel: Geometry Engine for Topology - (devel)
$ cygcheck -p geos-config
Found 3 matches for geos-config
libgeos-devel-3.10.3-1 - libgeos-devel: Geometry Engine for Topology - (devel)
libgeos-devel-3.11.0-1 - libgeos-devel: Geometry Engine for Topology - (devel)
libgeos-devel-3.11.1-1 - libgeos-devel: Geometry Engine for Topology - (devel)
Neither is installed, because to build library code you typically need to have
installed a [lib]...-devel package, which other packages do not usually depend on.
Check the prereqs in python, then check the Cygwin packages that provide
packages with that root name, then install them, before trying pip install,
which is outside of Cygwin packaging, so you need to do everything yourself!
If in doubt, you can just install everything which matches geos or whatever!
--
Take care. Thanks, Brian Inglis Calgary, Alberta, Canada
La perfection est atteinte Perfection is achieved
non pas lorsqu'il n'y a plus rien à ajouter not when there is no more to add
mais lorsqu'il n'y a plus rien à retirer but when there is no more to cut
-- Antoine de Saint-Exupéry
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