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#!/usr/bin/env python
# Two environment variables influence this script.
#
# GEOS_LIBRARY_PATH: a path to a GEOS C shared library.
#
# GEOS_CONFIG: the path to a geos-config program that points to GEOS version,
# headers, and libraries.
#
# NB: within this setup scripts, software versions are evaluated according
# to https://www.python.org/dev/peps/pep-0440/.
import errno
import glob
import logging
import os
import platform
import re
import shutil
import subprocess
import sys
try:
# If possible, use setuptools
from setuptools import setup
from setuptools.extension import Extension
from setuptools.command.build_ext import build_ext as distutils_build_ext
except ImportError:
from distutils.core import setup
from distutils.extension import Extension
from distutils.command.build_ext import build_ext as distutils_build_ext
from distutils.errors import CCompilerError, DistutilsExecError, \
DistutilsPlatformError
from distutils.version import StrictVersion as Version
# Get geos_version from GEOS dynamic library, which depends on
# GEOS_LIBRARY_PATH and/or GEOS_CONFIG environment variables
from shapely._buildcfg import geos_version_string, geos_version, \
geos_config, get_geos_config
logging.basicConfig()
log = logging.getLogger(__file__)
# python -W all setup.py ...
if 'all' in sys.warnoptions:
log.level = logging.DEBUG
# Get the version from the shapely module
shapely_version = None
with open('shapely/__init__.py', 'r') as fp:
for line in fp:
if line.startswith("__version__"):
shapely_version = Version(
line.split("=")[1].strip().strip("\"'"))
break
if not shapely_version:
raise ValueError("Could not determine Shapely's version")
# Fail installation if the GEOS shared library does not meet the minimum
# version. We ship it with Shapely for Windows, so no need to check on
# that platform.
log.debug('GEOS shared library: %s %s', geos_version_string, geos_version)
if (set(sys.argv).intersection(['install', 'build', 'build_ext']) and
shapely_version >= Version('1.3') and
geos_version < (3, 3)):
log.critical(
"Shapely >= 1.3 requires GEOS >= 3.3. "
"Install GEOS 3.3+ and reinstall Shapely.")
sys.exit(1)
# Handle UTF-8 encoding of certain text files.
open_kwds = {}
if sys.version_info >= (3,):
open_kwds['encoding'] = 'utf-8'
with open('VERSION.txt', 'w', **open_kwds) as fp:
fp.write(str(shapely_version))
with open('README.rst', 'r', **open_kwds) as fp:
readme = fp.read()
with open('CREDITS.txt', 'r', **open_kwds) as fp:
credits = fp.read()
with open('CHANGES.txt', 'r', **open_kwds) as fp:
changes = fp.read()
long_description = readme + '\n\n' + credits + '\n\n' + changes
setup_args = dict(
name = 'Shapely',
version = str(shapely_version),
requires = ['Python (>=2.6)', 'libgeos_c (>=3.3)'],
description = 'Geometric objects, predicates, and operations',
license = 'BSD',
keywords = 'geometry topology gis',
author = 'Sean Gillies',
author_email = 'sean.gillies@gmail.com',
maintainer = 'Sean Gillies',
maintainer_email = 'sean.gillies@gmail.com',
url = 'https://github.com/Toblerity/Shapely',
long_description = long_description,
packages = [
'shapely',
'shapely.geometry',
'shapely.algorithms',
'shapely.examples',
'shapely.speedups',
'shapely.vectorized',
],
classifiers = [
'Development Status :: 5 - Production/Stable',
'Intended Audience :: Developers',
'Intended Audience :: Science/Research',
'License :: OSI Approved :: BSD License',
'Operating System :: OS Independent',
'Programming Language :: Python :: 2.6',
'Programming Language :: Python :: 2.7',
'Programming Language :: Python :: 3',
'Topic :: Scientific/Engineering :: GIS',
],
cmdclass = {},
)
# Add DLLs for Windows
if sys.platform == 'win32':
try:
os.mkdir('shapely/DLLs')
except OSError as ex:
if ex.errno != errno.EEXIST:
raise
if '(AMD64)' in sys.version:
for dll in glob.glob('DLLs_AMD64_VC9/*.dll'):
shutil.copy(dll, 'shapely/DLLs')
elif sys.version_info[0:2] == (2, 5):
for dll in glob.glob('DLLs_x86_VC7/*.dll'):
shutil.copy(dll, 'shapely/DLLs')
else:
for dll in glob.glob('DLLs_x86_VC9/*.dll'):
shutil.copy(dll, 'shapely/DLLs')
setup_args.update(
package_data={'shapely': ['shapely/DLLs/*.dll']},
include_package_data=True,
)
# Prepare build opts and args for the speedups extension module.
include_dirs = []
library_dirs = []
libraries = []
extra_link_args = []
try:
# Get the version from geos-config. Show error if this version tuple is
# different to the GEOS version loaded from the dynamic library.
geos_config_version_string = get_geos_config('--version')
res = re.findall(r'(\d+)\.(\d+)\.(\d+)', geos_config_version_string)
geos_config_version = tuple(int(x) for x in res[0])
if geos_config_version != geos_version:
log.error("The GEOS dynamic library version is %s %s,",
geos_version_string, geos_version)
log.error("but the version reported by %s is %s %s.", geos_config,
geos_config_version_string, geos_config_version)
sys.exit(1)
except OSError as ex:
log.error(ex)
log.error('Cannot find geos-config to get headers and check version.')
log.error('If available, specify a path to geos-config with a '
'GEOS_CONFIG environment variable')
geos_config = None
if geos_config:
# Collect other options from GEOS
for item in get_geos_config('--cflags').split():
if item.startswith("-I"):
include_dirs.extend(item[2:].split(":"))
for item in get_geos_config('--clibs').split():
if item.startswith("-L"):
library_dirs.extend(item[2:].split(":"))
elif item.startswith("-l"):
libraries.append(item[2:])
else:
# e.g. -framework GEOS
extra_link_args.append(item)
# Optional compilation of speedups
# setuptools stuff from Bob Ippolito's simplejson project
if sys.platform == 'win32' and sys.version_info > (2, 6):
# 2.6's distutils.msvc9compiler can raise an IOError when failing to
# find the compiler
ext_errors = (CCompilerError, DistutilsExecError, DistutilsPlatformError,
IOError)
else:
ext_errors = (CCompilerError, DistutilsExecError, DistutilsPlatformError)
class BuildFailed(Exception):
pass
def construct_build_ext(build_ext):
class WrappedBuildExt(build_ext):
# This class allows C extension building to fail.
def run(self):
try:
build_ext.run(self)
except DistutilsPlatformError as x:
raise BuildFailed(x)
def build_extension(self, ext):
try:
build_ext.build_extension(self, ext)
except ext_errors as x:
raise BuildFailed(x)
return WrappedBuildExt
if (hasattr(platform, 'python_implementation')
and platform.python_implementation() == 'PyPy'):
# python_implementation is only available since 2.6
ext_modules = []
libraries = []
if os.path.exists("MANIFEST.in"):
pyx_file = "shapely/speedups/_speedups.pyx"
c_file = "shapely/speedups/_speedups.c"
force_cython = False
if 'sdist' in sys.argv:
force_cython = True
try:
if (force_cython or not os.path.exists(c_file)
or os.path.getmtime(pyx_file) > os.path.getmtime(c_file)):
log.info("Updating C extension with Cython.")
subprocess.check_call(["cython", "shapely/speedups/_speedups.pyx"])
except (subprocess.CalledProcessError, OSError):
log.warn("Could not (re)create C extension with Cython.")
if force_cython:
raise
if not os.path.exists(c_file):
log.warn("speedup extension not found")
ext_modules = [
Extension(
"shapely.speedups._speedups",
["shapely/speedups/_speedups.c"],
include_dirs=include_dirs,
library_dirs=library_dirs,
libraries=libraries,
extra_link_args=extra_link_args,
),
]
cmd_classes = setup_args.setdefault('cmdclass', {})
try:
import numpy
from Cython.Distutils import build_ext as cython_build_ext
from distutils.extension import Extension as DistutilsExtension
if 'build_ext' in setup_args['cmdclass']:
raise ValueError('We need to put the Cython build_ext in '
'cmd_classes, but it is already defined.')
setup_args['cmdclass']['build_ext'] = cython_build_ext
include_dirs.append(numpy.get_include())
libraries.append(numpy.get_include())
ext_modules.append(DistutilsExtension(
"shapely.vectorized._vectorized",
sources=["shapely/vectorized/_vectorized.pyx"],
include_dirs=include_dirs,
library_dirs=library_dirs,
libraries=libraries,
extra_link_args=extra_link_args,
))
except ImportError:
log.info("Numpy or Cython not available, shapely.vectorized submodule "
"not being built.")
try:
# try building with speedups
existing_build_ext = setup_args['cmdclass'].\
get('build_ext', distutils_build_ext)
setup_args['cmdclass']['build_ext'] = \
construct_build_ext(existing_build_ext)
setup(ext_modules=ext_modules, **setup_args)
except BuildFailed as ex:
BUILD_EXT_WARNING = "The C extension could not be compiled, " \
"speedups are not enabled."
log.warn(ex)
log.warn(BUILD_EXT_WARNING)
log.warn("Failure information, if any, is above.")
log.warn("I'm retrying the build without the C extension now.")
# Remove any previously defined build_ext command class.
if 'build_ext' in setup_args['cmdclass']:
del setup_args['cmdclass']['build_ext']
if 'build_ext' in cmd_classes:
del cmd_classes['build_ext']
setup(**setup_args)
log.warn(BUILD_EXT_WARNING)
log.info("Plain-Python installation succeeded.")
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