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##############################################################################
# Copyright (c) 2013-2016, Lawrence Livermore National Security, LLC.
# Produced at the Lawrence Livermore National Laboratory.
#
# This file is part of Spack.
# Created by Todd Gamblin, tgamblin@llnl.gov, All rights reserved.
# LLNL-CODE-647188
#
# For details, see https://github.com/llnl/spack
# Please also see the LICENSE file for our notice and the LGPL.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License (as
# published by the Free Software Foundation) version 2.1, February 1999.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the IMPLIED WARRANTY OF
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the terms and
# conditions of the GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
##############################################################################
import functools
import glob
import inspect
import os
import re
from contextlib import closing
import spack
from llnl.util.lang import match_predicate
from spack import *
from spack.util.environment import *
class Python(Package):
"""The Python programming language."""
homepage = "http://www.python.org"
url = "http://www.python.org/ftp/python/2.7.8/Python-2.7.8.tgz"
extendable = True
version('3.5.1', 'be78e48cdfc1a7ad90efff146dce6cfe')
version('3.5.0', 'a56c0c0b45d75a0ec9c6dee933c41c36')
version('2.7.11', '6b6076ec9e93f05dd63e47eb9c15728b', preferred=True)
version('2.7.10', 'd7547558fd673bd9d38e2108c6b42521')
version('2.7.9', '5eebcaa0030dc4061156d3429657fb83')
version('2.7.8', 'd4bca0159acb0b44a781292b5231936f')
depends_on("openssl")
depends_on("bzip2")
depends_on("readline")
depends_on("ncurses")
depends_on("sqlite")
depends_on("zlib")
def install(self, spec, prefix):
# Need this to allow python build to find the Python installation.
env['PYTHONHOME'] = prefix
env['MACOSX_DEPLOYMENT_TARGET'] = '10.6'
# Rest of install is pretty standard except setup.py needs to
# be able to read the CPPFLAGS and LDFLAGS as it scans for the
# library and headers to build
configure_args= [
"--prefix=%s" % prefix,
"--with-threads",
"--enable-shared",
"CPPFLAGS=-I%s/include -I%s/include -I%s/include -I%s/include -I%s/include -I%s/include" % (
spec['openssl'].prefix, spec['bzip2'].prefix,
spec['readline'].prefix, spec['ncurses'].prefix,
spec['sqlite'].prefix, spec['zlib'].prefix),
"LDFLAGS=-L%s/lib -L%s/lib -L%s/lib -L%s/lib -L%s/lib -L%s/lib" % (
spec['openssl'].prefix, spec['bzip2'].prefix,
spec['readline'].prefix, spec['ncurses'].prefix,
spec['sqlite'].prefix, spec['zlib'].prefix)
]
if spec.satisfies('@3:'):
configure_args.append('--without-ensurepip')
configure(*configure_args)
make()
make("install")
# Modify compiler paths in configuration files. This is necessary for
# building site packages outside of spack
filter_file(r'([/s]=?)([\S=]*)/lib/spack/env(/[^\s/]*)?/(\S*)(\s)',
(r'\4\5'),
join_path(prefix.lib, 'python%d.%d' % self.version[:2], '_sysconfigdata.py'))
python3_version = ''
if spec.satisfies('@3:'):
python3_version = '-%d.%dm' % self.version[:2]
makefile_filepath = join_path(prefix.lib, 'python%d.%d' % self.version[:2], 'config%s' % python3_version, 'Makefile')
filter_file(r'([/s]=?)([\S=]*)/lib/spack/env(/[^\s/]*)?/(\S*)(\s)',
(r'\4\5'),
makefile_filepath)
# ========================================================================
# Set up environment to make install easy for python extensions.
# ========================================================================
@property
def python_lib_dir(self):
return os.path.join('lib', 'python%d.%d' % self.version[:2])
@property
def python_include_dir(self):
return os.path.join('include', 'python%d.%d' % self.version[:2])
@property
def site_packages_dir(self):
return os.path.join(self.python_lib_dir, 'site-packages')
def setup_dependent_environment(self, spack_env, run_env, extension_spec):
# TODO: do this only for actual extensions.
# Set PYTHONPATH to include site-packages dir for the
# extension and any other python extensions it depends on.
python_paths = []
for d in extension_spec.traverse():
if d.package.extends(self.spec):
python_paths.append(os.path.join(d.prefix, self.site_packages_dir))
pythonpath = ':'.join(python_paths)
spack_env.set('PYTHONPATH', pythonpath)
# For run time environment set only the path for extension_spec and prepend it to PYTHONPATH
if extension_spec.package.extends(self.spec):
run_env.prepend_path('PYTHONPATH', os.path.join(extension_spec.prefix, self.site_packages_dir))
def setup_dependent_package(self, module, ext_spec):
"""
Called before python modules' install() methods.
In most cases, extensions will only need to have one line::
python('setup.py', 'install', '--prefix=%s' % prefix)
"""
# Python extension builds can have a global python executable function
if self.version >= Version("3.0.0") and self.version < Version("4.0.0"):
module.python = Executable(join_path(self.spec.prefix.bin, 'python3'))
else:
module.python = Executable(join_path(self.spec.prefix.bin, 'python'))
# Add variables for lib/pythonX.Y and lib/pythonX.Y/site-packages dirs.
module.python_lib_dir = os.path.join(ext_spec.prefix, self.python_lib_dir)
module.python_include_dir = os.path.join(ext_spec.prefix, self.python_include_dir)
module.site_packages_dir = os.path.join(ext_spec.prefix, self.site_packages_dir)
# Make the site packages directory for extensions, if it does not exist already.
if ext_spec.package.is_extension:
mkdirp(module.site_packages_dir)
# ========================================================================
# Handle specifics of activating and deactivating python modules.
# ========================================================================
def python_ignore(self, ext_pkg, args):
"""Add some ignore files to activate/deactivate args."""
ignore_arg = args.get('ignore', lambda f: False)
# Always ignore easy-install.pth, as it needs to be merged.
patterns = [r'easy-install\.pth$']
# Ignore pieces of setuptools installed by other packages.
if ext_pkg.name != 'py-setuptools':
patterns.append(r'/site[^/]*\.pyc?$')
patterns.append(r'setuptools\.pth')
patterns.append(r'bin/easy_install[^/]*$')
patterns.append(r'setuptools.*egg$')
if ext_pkg.name != 'py-numpy':
patterns.append(r'bin/f2py$')
return match_predicate(ignore_arg, patterns)
def write_easy_install_pth(self, exts):
paths = []
for ext in sorted(exts.values()):
ext_site_packages = os.path.join(ext.prefix, self.site_packages_dir)
easy_pth = "%s/easy-install.pth" % ext_site_packages
if not os.path.isfile(easy_pth):
continue
with closing(open(easy_pth)) as f:
for line in f:
line = line.rstrip()
# Skip lines matching these criteria
if not line: continue
if re.search(r'^(import|#)', line): continue
if (ext.name != 'py-setuptools' and
re.search(r'setuptools.*egg$', line)): continue
paths.append(line)
site_packages = os.path.join(self.prefix, self.site_packages_dir)
main_pth = "%s/easy-install.pth" % site_packages
if not paths:
if os.path.isfile(main_pth):
os.remove(main_pth)
else:
with closing(open(main_pth, 'w')) as f:
f.write("import sys; sys.__plen = len(sys.path)\n")
for path in paths:
f.write("%s\n" % path)
f.write("import sys; new=sys.path[sys.__plen:]; del sys.path[sys.__plen:]; "
"p=getattr(sys,'__egginsert',0); sys.path[p:p]=new; sys.__egginsert = p+len(new)\n")
def activate(self, ext_pkg, **args):
ignore=self.python_ignore(ext_pkg, args)
args.update(ignore=ignore)
super(Python, self).activate(ext_pkg, **args)
exts = spack.install_layout.extension_map(self.spec)
exts[ext_pkg.name] = ext_pkg.spec
self.write_easy_install_pth(exts)
def deactivate(self, ext_pkg, **args):
args.update(ignore=self.python_ignore(ext_pkg, args))
super(Python, self).deactivate(ext_pkg, **args)
exts = spack.install_layout.extension_map(self.spec)
if ext_pkg.name in exts: # Make deactivate idempotent.
del exts[ext_pkg.name]
self.write_easy_install_pth(exts)
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