forked from mirror/waf
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
658 lines
23 KiB
Python
658 lines
23 KiB
Python
#!/usr/bin/env python
|
|
# encoding: utf-8
|
|
# Thomas Nagy, 2007-2015 (ita)
|
|
# Gustavo Carneiro (gjc), 2007
|
|
|
|
"""
|
|
Support for Python, detect the headers and libraries and provide
|
|
*use* variables to link C/C++ programs against them::
|
|
|
|
def options(opt):
|
|
opt.load('compiler_c python')
|
|
def configure(conf):
|
|
conf.load('compiler_c python')
|
|
conf.check_python_version((2,4,2))
|
|
conf.check_python_headers()
|
|
def build(bld):
|
|
bld.program(features='pyembed', source='a.c', target='myprog')
|
|
bld.shlib(features='pyext', source='b.c', target='mylib')
|
|
"""
|
|
|
|
import os, sys
|
|
from waflib import Errors, Logs, Node, Options, Task, Utils
|
|
from waflib.TaskGen import extension, before_method, after_method, feature
|
|
from waflib.Configure import conf
|
|
|
|
FRAG = '''
|
|
#include <Python.h>
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
void Py_Initialize(void);
|
|
void Py_Finalize(void);
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
int main(int argc, char **argv)
|
|
{
|
|
(void)argc; (void)argv;
|
|
Py_Initialize();
|
|
Py_Finalize();
|
|
return 0;
|
|
}
|
|
'''
|
|
"""
|
|
Piece of C/C++ code used in :py:func:`waflib.Tools.python.check_python_headers`
|
|
"""
|
|
|
|
INST = '''
|
|
import sys, py_compile
|
|
py_compile.compile(sys.argv[1], sys.argv[2], sys.argv[3], True)
|
|
'''
|
|
"""
|
|
Piece of Python code used in :py:class:`waflib.Tools.python.pyo` and :py:class:`waflib.Tools.python.pyc` for byte-compiling python files
|
|
"""
|
|
|
|
DISTUTILS_IMP = """
|
|
try:
|
|
from distutils.sysconfig import get_config_var, get_python_lib
|
|
except ImportError:
|
|
from sysconfig import get_config_var, get_path
|
|
def get_python_lib(*k, **kw):
|
|
keyword='platlib' if kw.get('plat_specific') else 'purelib'
|
|
if 'prefix' in kw:
|
|
return get_path(keyword, vars={'installed_base': kw['prefix'], 'platbase': kw['prefix']})
|
|
return get_path(keyword)
|
|
""".splitlines()
|
|
|
|
@before_method('process_source')
|
|
@feature('py')
|
|
def feature_py(self):
|
|
"""
|
|
Create tasks to byte-compile .py files and install them, if requested
|
|
"""
|
|
self.install_path = getattr(self, 'install_path', '${PYTHONDIR}')
|
|
install_from = getattr(self, 'install_from', None)
|
|
if install_from and not isinstance(install_from, Node.Node):
|
|
install_from = self.path.find_dir(install_from)
|
|
self.install_from = install_from
|
|
|
|
ver = self.env.PYTHON_VERSION
|
|
if not ver:
|
|
self.bld.fatal('Installing python files requires PYTHON_VERSION, try conf.check_python_version')
|
|
|
|
if int(ver.replace('.', '')) > 31:
|
|
self.install_32 = True
|
|
|
|
@extension('.py')
|
|
def process_py(self, node):
|
|
"""
|
|
Add signature of .py file, so it will be byte-compiled when necessary
|
|
"""
|
|
assert(hasattr(self, 'install_path')), 'add features="py" for target "%s" in "%s/wscript".' % (self.target, self.path.nice_path())
|
|
self.install_from = getattr(self, 'install_from', None)
|
|
relative_trick = getattr(self, 'relative_trick', True)
|
|
if self.install_from:
|
|
assert isinstance(self.install_from, Node.Node), \
|
|
'add features="py" for target "%s" in "%s/wscript" (%s).' % (self.target, self.path.nice_path(), type(self.install_from))
|
|
|
|
# where to install the python file
|
|
if self.install_path:
|
|
if self.install_from:
|
|
self.add_install_files(install_to=self.install_path, install_from=node, cwd=self.install_from, relative_trick=relative_trick)
|
|
else:
|
|
self.add_install_files(install_to=self.install_path, install_from=node, relative_trick=relative_trick)
|
|
|
|
lst = []
|
|
if self.env.PYC:
|
|
lst.append('pyc')
|
|
if self.env.PYO:
|
|
lst.append('pyo')
|
|
|
|
if self.install_path:
|
|
if self.install_from:
|
|
target_dir = node.path_from(self.install_from) if relative_trick else node.name
|
|
pyd = Utils.subst_vars("%s/%s" % (self.install_path, target_dir), self.env)
|
|
else:
|
|
target_dir = node.path_from(self.path) if relative_trick else node.name
|
|
pyd = Utils.subst_vars("%s/%s" % (self.install_path, target_dir), self.env)
|
|
else:
|
|
pyd = node.abspath()
|
|
|
|
for ext in lst:
|
|
if self.env.PYTAG and not self.env.NOPYCACHE:
|
|
# __pycache__ installation for python 3.2 - PEP 3147
|
|
name = node.name[:-3]
|
|
pyobj = node.parent.get_bld().make_node('__pycache__').make_node("%s.%s.%s" % (name, self.env.PYTAG, ext))
|
|
pyobj.parent.mkdir()
|
|
else:
|
|
pyobj = node.change_ext(".%s" % ext)
|
|
|
|
tsk = self.create_task(ext, node, pyobj)
|
|
tsk.pyd = pyd
|
|
|
|
if self.install_path:
|
|
self.add_install_files(install_to=os.path.dirname(pyd), install_from=pyobj, cwd=node.parent.get_bld(), relative_trick=relative_trick)
|
|
|
|
class pyc(Task.Task):
|
|
"""
|
|
Byte-compiling python files
|
|
"""
|
|
color = 'PINK'
|
|
def __str__(self):
|
|
node = self.outputs[0]
|
|
return node.path_from(node.ctx.launch_node())
|
|
def run(self):
|
|
cmd = [Utils.subst_vars('${PYTHON}', self.env), '-c', INST, self.inputs[0].abspath(), self.outputs[0].abspath(), self.pyd]
|
|
ret = self.generator.bld.exec_command(cmd)
|
|
return ret
|
|
|
|
class pyo(Task.Task):
|
|
"""
|
|
Byte-compiling python files
|
|
"""
|
|
color = 'PINK'
|
|
def __str__(self):
|
|
node = self.outputs[0]
|
|
return node.path_from(node.ctx.launch_node())
|
|
def run(self):
|
|
cmd = [Utils.subst_vars('${PYTHON}', self.env), Utils.subst_vars('${PYFLAGS_OPT}', self.env), '-c', INST, self.inputs[0].abspath(), self.outputs[0].abspath(), self.pyd]
|
|
ret = self.generator.bld.exec_command(cmd)
|
|
return ret
|
|
|
|
@feature('pyext')
|
|
@before_method('propagate_uselib_vars', 'apply_link')
|
|
@after_method('apply_bundle')
|
|
def init_pyext(self):
|
|
"""
|
|
Change the values of *cshlib_PATTERN* and *cxxshlib_PATTERN* to remove the
|
|
*lib* prefix from library names.
|
|
"""
|
|
self.uselib = self.to_list(getattr(self, 'uselib', []))
|
|
if not 'PYEXT' in self.uselib:
|
|
self.uselib.append('PYEXT')
|
|
# override shlib_PATTERN set by the osx module
|
|
self.env.cshlib_PATTERN = self.env.cxxshlib_PATTERN = self.env.macbundle_PATTERN = self.env.pyext_PATTERN
|
|
self.env.fcshlib_PATTERN = self.env.dshlib_PATTERN = self.env.pyext_PATTERN
|
|
|
|
try:
|
|
if not self.install_path:
|
|
return
|
|
except AttributeError:
|
|
self.install_path = '${PYTHONARCHDIR}'
|
|
|
|
@feature('pyext')
|
|
@before_method('apply_link', 'apply_bundle')
|
|
def set_bundle(self):
|
|
"""Mac-specific pyext extension that enables bundles from c_osx.py"""
|
|
if Utils.unversioned_sys_platform() == 'darwin':
|
|
self.mac_bundle = True
|
|
|
|
@before_method('propagate_uselib_vars')
|
|
@feature('pyembed')
|
|
def init_pyembed(self):
|
|
"""
|
|
Add the PYEMBED variable.
|
|
"""
|
|
self.uselib = self.to_list(getattr(self, 'uselib', []))
|
|
if not 'PYEMBED' in self.uselib:
|
|
self.uselib.append('PYEMBED')
|
|
|
|
@conf
|
|
def get_python_variables(self, variables, imports=None):
|
|
"""
|
|
Spawn a new python process to dump configuration variables
|
|
|
|
:param variables: variables to print
|
|
:type variables: list of string
|
|
:param imports: one import by element
|
|
:type imports: list of string
|
|
:return: the variable values
|
|
:rtype: list of string
|
|
"""
|
|
if not imports:
|
|
try:
|
|
imports = self.python_imports
|
|
except AttributeError:
|
|
imports = DISTUTILS_IMP
|
|
|
|
program = list(imports) # copy
|
|
program.append('')
|
|
for v in variables:
|
|
program.append("print(repr(%s))" % v)
|
|
os_env = dict(os.environ)
|
|
try:
|
|
del os_env['MACOSX_DEPLOYMENT_TARGET'] # see comments in the OSX tool
|
|
except KeyError:
|
|
pass
|
|
|
|
try:
|
|
out = self.cmd_and_log(self.env.PYTHON + ['-c', '\n'.join(program)], env=os_env)
|
|
except Errors.WafError:
|
|
self.fatal('Could not run %r' % self.env.PYTHON)
|
|
self.to_log(out)
|
|
return_values = []
|
|
for s in out.splitlines():
|
|
s = s.strip()
|
|
if not s:
|
|
continue
|
|
if s == 'None':
|
|
return_values.append(None)
|
|
elif (s[0] == "'" and s[-1] == "'") or (s[0] == '"' and s[-1] == '"'):
|
|
return_values.append(eval(s))
|
|
elif s[0].isdigit():
|
|
return_values.append(int(s))
|
|
else: break
|
|
return return_values
|
|
|
|
@conf
|
|
def test_pyembed(self, mode, msg='Testing pyembed configuration'):
|
|
self.check(header_name='Python.h', define_name='HAVE_PYEMBED', msg=msg,
|
|
fragment=FRAG, errmsg='Could not build a python embedded interpreter',
|
|
features='%s %sprogram pyembed' % (mode, mode))
|
|
|
|
@conf
|
|
def test_pyext(self, mode, msg='Testing pyext configuration'):
|
|
self.check(header_name='Python.h', define_name='HAVE_PYEXT', msg=msg,
|
|
fragment=FRAG, errmsg='Could not build python extensions',
|
|
features='%s %sshlib pyext' % (mode, mode))
|
|
|
|
@conf
|
|
def python_cross_compile(self, features='pyembed pyext'):
|
|
"""
|
|
For cross-compilation purposes, it is possible to bypass the normal detection and set the flags that you want:
|
|
PYTHON_VERSION='3.4' PYTAG='cpython34' pyext_PATTERN="%s.so" PYTHON_LDFLAGS='-lpthread -ldl' waf configure
|
|
|
|
The following variables are used:
|
|
PYTHON_VERSION required
|
|
PYTAG required
|
|
PYTHON_LDFLAGS required
|
|
pyext_PATTERN required
|
|
PYTHON_PYEXT_LDFLAGS
|
|
PYTHON_PYEMBED_LDFLAGS
|
|
"""
|
|
features = Utils.to_list(features)
|
|
if not ('PYTHON_LDFLAGS' in self.environ or 'PYTHON_PYEXT_LDFLAGS' in self.environ or 'PYTHON_PYEMBED_LDFLAGS' in self.environ):
|
|
return False
|
|
|
|
for x in 'PYTHON_VERSION PYTAG pyext_PATTERN'.split():
|
|
if not x in self.environ:
|
|
self.fatal('Please set %s in the os environment' % x)
|
|
else:
|
|
self.env[x] = self.environ[x]
|
|
|
|
xx = self.env.CXX_NAME and 'cxx' or 'c'
|
|
if 'pyext' in features:
|
|
flags = self.environ.get('PYTHON_PYEXT_LDFLAGS', self.environ.get('PYTHON_LDFLAGS'))
|
|
if flags is None:
|
|
self.fatal('No flags provided through PYTHON_PYEXT_LDFLAGS as required')
|
|
else:
|
|
self.parse_flags(flags, 'PYEXT')
|
|
self.test_pyext(xx)
|
|
if 'pyembed' in features:
|
|
flags = self.environ.get('PYTHON_PYEMBED_LDFLAGS', self.environ.get('PYTHON_LDFLAGS'))
|
|
if flags is None:
|
|
self.fatal('No flags provided through PYTHON_PYEMBED_LDFLAGS as required')
|
|
else:
|
|
self.parse_flags(flags, 'PYEMBED')
|
|
self.test_pyembed(xx)
|
|
return True
|
|
|
|
@conf
|
|
def check_python_headers(conf, features='pyembed pyext'):
|
|
"""
|
|
Check for headers and libraries necessary to extend or embed python.
|
|
It may use the module *distutils* or sysconfig in newer Python versions.
|
|
On success the environment variables xxx_PYEXT and xxx_PYEMBED are added:
|
|
|
|
* PYEXT: for compiling python extensions
|
|
* PYEMBED: for embedding a python interpreter
|
|
"""
|
|
features = Utils.to_list(features)
|
|
assert ('pyembed' in features) or ('pyext' in features), "check_python_headers features must include 'pyembed' and/or 'pyext'"
|
|
env = conf.env
|
|
if not env.CC_NAME and not env.CXX_NAME:
|
|
conf.fatal('load a compiler first (gcc, g++, ..)')
|
|
|
|
# bypass all the code below for cross-compilation
|
|
if conf.python_cross_compile(features):
|
|
return
|
|
|
|
if not env.PYTHON_VERSION:
|
|
conf.check_python_version()
|
|
|
|
pybin = env.PYTHON
|
|
if not pybin:
|
|
conf.fatal('Could not find the python executable')
|
|
|
|
# so we actually do all this for compatibility reasons and for obtaining pyext_PATTERN below
|
|
v = 'prefix SO EXT_SUFFIX LDFLAGS LIBDIR LIBPL INCLUDEPY Py_ENABLE_SHARED MACOSX_DEPLOYMENT_TARGET LDSHARED CFLAGS LDVERSION'.split()
|
|
try:
|
|
lst = conf.get_python_variables(["get_config_var('%s') or ''" % x for x in v])
|
|
except RuntimeError:
|
|
conf.fatal("Python development headers not found (-v for details).")
|
|
|
|
vals = ['%s = %r' % (x, y) for (x, y) in zip(v, lst)]
|
|
conf.to_log("Configuration returned from %r:\n%s\n" % (pybin, '\n'.join(vals)))
|
|
|
|
dct = dict(zip(v, lst))
|
|
x = 'MACOSX_DEPLOYMENT_TARGET'
|
|
if dct[x]:
|
|
env[x] = conf.environ[x] = str(dct[x])
|
|
env.pyext_PATTERN = '%s' + (dct['EXT_SUFFIX'] or dct['SO']) # SO is deprecated in 3.5 and removed in 3.11
|
|
|
|
|
|
# Try to get pythonX.Y-config
|
|
num = '.'.join(env.PYTHON_VERSION.split('.')[:2])
|
|
conf.find_program([''.join(pybin) + '-config', 'python%s-config' % num, 'python-config-%s' % num, 'python%sm-config' % num], var='PYTHON_CONFIG', msg="python-config", mandatory=False)
|
|
|
|
if env.PYTHON_CONFIG:
|
|
# check python-config output only once
|
|
if conf.env.HAVE_PYTHON_H:
|
|
return
|
|
|
|
# python2.6-config requires 3 runs
|
|
all_flags = [['--cflags', '--libs', '--ldflags']]
|
|
if sys.hexversion < 0x2070000:
|
|
all_flags = [[k] for k in all_flags[0]]
|
|
|
|
xx = env.CXX_NAME and 'cxx' or 'c'
|
|
|
|
if 'pyembed' in features:
|
|
for flags in all_flags:
|
|
# Python 3.8 has different flags for pyembed, needs --embed
|
|
embedflags = flags + ['--embed']
|
|
try:
|
|
conf.check_cfg(msg='Asking python-config for pyembed %r flags' % ' '.join(embedflags), path=env.PYTHON_CONFIG, package='', uselib_store='PYEMBED', args=embedflags)
|
|
except conf.errors.ConfigurationError:
|
|
# However Python < 3.8 doesn't accept --embed, so we need a fallback
|
|
conf.check_cfg(msg='Asking python-config for pyembed %r flags' % ' '.join(flags), path=env.PYTHON_CONFIG, package='', uselib_store='PYEMBED', args=flags)
|
|
|
|
try:
|
|
conf.test_pyembed(xx)
|
|
except conf.errors.ConfigurationError:
|
|
# python bug 7352
|
|
if dct['Py_ENABLE_SHARED'] and dct['LIBDIR']:
|
|
env.append_unique('LIBPATH_PYEMBED', [dct['LIBDIR']])
|
|
conf.test_pyembed(xx)
|
|
else:
|
|
raise
|
|
|
|
if 'pyext' in features:
|
|
for flags in all_flags:
|
|
conf.check_cfg(msg='Asking python-config for pyext %r flags' % ' '.join(flags), path=env.PYTHON_CONFIG, package='', uselib_store='PYEXT', args=flags)
|
|
|
|
try:
|
|
conf.test_pyext(xx)
|
|
except conf.errors.ConfigurationError:
|
|
# python bug 7352
|
|
if dct['Py_ENABLE_SHARED'] and dct['LIBDIR']:
|
|
env.append_unique('LIBPATH_PYEXT', [dct['LIBDIR']])
|
|
conf.test_pyext(xx)
|
|
else:
|
|
raise
|
|
|
|
conf.define('HAVE_PYTHON_H', 1)
|
|
return
|
|
|
|
# No python-config, do something else on windows systems
|
|
all_flags = dct['LDFLAGS'] + ' ' + dct['CFLAGS']
|
|
conf.parse_flags(all_flags, 'PYEMBED')
|
|
|
|
all_flags = dct['LDFLAGS'] + ' ' + dct['LDSHARED'] + ' ' + dct['CFLAGS']
|
|
conf.parse_flags(all_flags, 'PYEXT')
|
|
|
|
result = None
|
|
if not dct["LDVERSION"]:
|
|
dct["LDVERSION"] = env.PYTHON_VERSION
|
|
|
|
# further simplification will be complicated
|
|
for name in ('python' + dct['LDVERSION'], 'python' + env.PYTHON_VERSION + 'm', 'python' + env.PYTHON_VERSION.replace('.', '')):
|
|
|
|
# LIBPATH_PYEMBED is already set; see if it works.
|
|
if not result and env.LIBPATH_PYEMBED:
|
|
path = env.LIBPATH_PYEMBED
|
|
conf.to_log("\n\n# Trying default LIBPATH_PYEMBED: %r\n" % path)
|
|
result = conf.check(lib=name, uselib='PYEMBED', libpath=path, mandatory=False, msg='Checking for library %s in LIBPATH_PYEMBED' % name)
|
|
|
|
if not result and dct['LIBDIR']:
|
|
path = [dct['LIBDIR']]
|
|
conf.to_log("\n\n# try again with -L$python_LIBDIR: %r\n" % path)
|
|
result = conf.check(lib=name, uselib='PYEMBED', libpath=path, mandatory=False, msg='Checking for library %s in LIBDIR' % name)
|
|
|
|
if not result and dct['LIBPL']:
|
|
path = [dct['LIBPL']]
|
|
conf.to_log("\n\n# try again with -L$python_LIBPL (some systems don't install the python library in $prefix/lib)\n")
|
|
result = conf.check(lib=name, uselib='PYEMBED', libpath=path, mandatory=False, msg='Checking for library %s in python_LIBPL' % name)
|
|
|
|
if not result:
|
|
path = [os.path.join(dct['prefix'], "libs")]
|
|
conf.to_log("\n\n# try again with -L$prefix/libs, and pythonXY rather than pythonX.Y (win32)\n")
|
|
result = conf.check(lib=name, uselib='PYEMBED', libpath=path, mandatory=False, msg='Checking for library %s in $prefix/libs' % name)
|
|
|
|
if not result:
|
|
path = [os.path.normpath(os.path.join(dct['INCLUDEPY'], '..', 'libs'))]
|
|
conf.to_log("\n\n# try again with -L$INCLUDEPY/../libs, and pythonXY rather than pythonX.Y (win32)\n")
|
|
result = conf.check(lib=name, uselib='PYEMBED', libpath=path, mandatory=False, msg='Checking for library %s in $INCLUDEPY/../libs' % name)
|
|
|
|
if result:
|
|
break # do not forget to set LIBPATH_PYEMBED
|
|
|
|
if result:
|
|
env.LIBPATH_PYEMBED = path
|
|
env.append_value('LIB_PYEMBED', [name])
|
|
else:
|
|
conf.to_log("\n\n### LIB NOT FOUND\n")
|
|
|
|
# under certain conditions, python extensions must link to
|
|
# python libraries, not just python embedding programs.
|
|
if Utils.is_win32 or dct['Py_ENABLE_SHARED']:
|
|
env.LIBPATH_PYEXT = env.LIBPATH_PYEMBED
|
|
env.LIB_PYEXT = env.LIB_PYEMBED
|
|
|
|
conf.to_log("Found an include path for Python extensions: %r\n" % (dct['INCLUDEPY'],))
|
|
env.INCLUDES_PYEXT = [dct['INCLUDEPY']]
|
|
env.INCLUDES_PYEMBED = [dct['INCLUDEPY']]
|
|
|
|
# Code using the Python API needs to be compiled with -fno-strict-aliasing
|
|
if env.CC_NAME == 'gcc':
|
|
env.append_unique('CFLAGS_PYEMBED', ['-fno-strict-aliasing'])
|
|
env.append_unique('CFLAGS_PYEXT', ['-fno-strict-aliasing'])
|
|
if env.CXX_NAME == 'gcc':
|
|
env.append_unique('CXXFLAGS_PYEMBED', ['-fno-strict-aliasing'])
|
|
env.append_unique('CXXFLAGS_PYEXT', ['-fno-strict-aliasing'])
|
|
|
|
if env.CC_NAME == "msvc":
|
|
try:
|
|
from distutils.msvccompiler import MSVCCompiler
|
|
except ImportError:
|
|
# From https://github.com/python/cpython/blob/main/Lib/distutils/msvccompiler.py
|
|
env.append_value('CFLAGS_PYEXT', [ '/nologo', '/Ox', '/MD', '/W3', '/GX', '/DNDEBUG'])
|
|
env.append_value('CXXFLAGS_PYEXT', [ '/nologo', '/Ox', '/MD', '/W3', '/GX', '/DNDEBUG'])
|
|
env.append_value('LINKFLAGS_PYEXT', ['/DLL', '/nologo', '/INCREMENTAL:NO'])
|
|
else:
|
|
dist_compiler = MSVCCompiler()
|
|
dist_compiler.initialize()
|
|
env.append_value('CFLAGS_PYEXT', dist_compiler.compile_options)
|
|
env.append_value('CXXFLAGS_PYEXT', dist_compiler.compile_options)
|
|
env.append_value('LINKFLAGS_PYEXT', dist_compiler.ldflags_shared)
|
|
|
|
conf.check(header_name='Python.h', define_name='HAVE_PYTHON_H', uselib='PYEMBED', fragment=FRAG, errmsg='Could not build a Python embedded interpreter')
|
|
|
|
@conf
|
|
def check_python_version(conf, minver=None):
|
|
"""
|
|
Check if the python interpreter is found matching a given minimum version.
|
|
minver should be a tuple, eg. to check for python >= 2.4.2 pass (2,4,2) as minver.
|
|
|
|
If successful, PYTHON_VERSION is defined as 'MAJOR.MINOR' (eg. '2.4')
|
|
of the actual python version found, and PYTHONDIR and PYTHONARCHDIR
|
|
are defined, pointing to the site-packages directories appropriate for
|
|
this python version, where modules/packages/extensions should be
|
|
installed.
|
|
|
|
:param minver: minimum version
|
|
:type minver: tuple of int
|
|
"""
|
|
assert minver is None or isinstance(minver, tuple)
|
|
pybin = conf.env.PYTHON
|
|
if not pybin:
|
|
conf.fatal('could not find the python executable')
|
|
|
|
# Get python version string
|
|
cmd = pybin + ['-c', 'import sys\nfor x in sys.version_info: print(str(x))']
|
|
Logs.debug('python: Running python command %r', cmd)
|
|
lines = conf.cmd_and_log(cmd).split()
|
|
assert len(lines) == 5, "found %r lines, expected 5: %r" % (len(lines), lines)
|
|
pyver_tuple = (int(lines[0]), int(lines[1]), int(lines[2]), lines[3], int(lines[4]))
|
|
|
|
# Compare python version with the minimum required
|
|
result = (minver is None) or (pyver_tuple >= minver)
|
|
|
|
if result:
|
|
# define useful environment variables
|
|
pyver = '.'.join([str(x) for x in pyver_tuple[:2]])
|
|
conf.env.PYTHON_VERSION = pyver
|
|
|
|
if 'PYTHONDIR' in conf.env:
|
|
# Check if --pythondir was specified
|
|
pydir = conf.env.PYTHONDIR
|
|
elif 'PYTHONDIR' in conf.environ:
|
|
# Check environment for PYTHONDIR
|
|
pydir = conf.environ['PYTHONDIR']
|
|
else:
|
|
# Finally, try to guess
|
|
if Utils.is_win32:
|
|
(pydir,) = conf.get_python_variables(["get_python_lib(standard_lib=0) or ''"])
|
|
else:
|
|
(pydir,) = conf.get_python_variables(["get_python_lib(standard_lib=0, prefix=%r) or ''" % conf.env.PREFIX])
|
|
|
|
if 'PYTHONARCHDIR' in conf.env:
|
|
# Check if --pythonarchdir was specified
|
|
pyarchdir = conf.env.PYTHONARCHDIR
|
|
elif 'PYTHONARCHDIR' in conf.environ:
|
|
# Check environment for PYTHONDIR
|
|
pyarchdir = conf.environ['PYTHONARCHDIR']
|
|
else:
|
|
# Finally, try to guess
|
|
(pyarchdir, ) = conf.get_python_variables(["get_python_lib(plat_specific=1, standard_lib=0, prefix=%r) or ''" % conf.env.PREFIX])
|
|
if not pyarchdir:
|
|
pyarchdir = pydir
|
|
|
|
if hasattr(conf, 'define'): # conf.define is added by the C tool, so may not exist
|
|
conf.define('PYTHONDIR', pydir)
|
|
conf.define('PYTHONARCHDIR', pyarchdir)
|
|
|
|
conf.env.PYTHONDIR = pydir
|
|
conf.env.PYTHONARCHDIR = pyarchdir
|
|
|
|
# Feedback
|
|
pyver_full = '.'.join(map(str, pyver_tuple[:3]))
|
|
if minver is None:
|
|
conf.msg('Checking for python version', pyver_full)
|
|
else:
|
|
minver_str = '.'.join(map(str, minver))
|
|
conf.msg('Checking for python version >= %s' % (minver_str,), pyver_full, color=result and 'GREEN' or 'YELLOW')
|
|
|
|
if not result:
|
|
conf.fatal('The python version is too old, expecting %r' % (minver,))
|
|
|
|
PYTHON_MODULE_TEMPLATE = '''
|
|
import %s as current_module
|
|
version = getattr(current_module, '__version__', None)
|
|
if version is not None:
|
|
print(str(version))
|
|
else:
|
|
print('unknown version')
|
|
'''
|
|
|
|
@conf
|
|
def check_python_module(conf, module_name, condition=''):
|
|
"""
|
|
Check if the selected python interpreter can import the given python module::
|
|
|
|
def configure(conf):
|
|
conf.check_python_module('pygccxml')
|
|
conf.check_python_module('re', condition="ver > num(2, 0, 4) and ver <= num(3, 0, 0)")
|
|
|
|
:param module_name: module
|
|
:type module_name: string
|
|
"""
|
|
msg = "Checking for python module %r" % module_name
|
|
if condition:
|
|
msg = '%s (%s)' % (msg, condition)
|
|
conf.start_msg(msg)
|
|
try:
|
|
ret = conf.cmd_and_log(conf.env.PYTHON + ['-c', PYTHON_MODULE_TEMPLATE % module_name])
|
|
except Errors.WafError:
|
|
conf.end_msg(False)
|
|
conf.fatal('Could not find the python module %r' % module_name)
|
|
|
|
ret = ret.strip()
|
|
if condition:
|
|
conf.end_msg(ret)
|
|
if ret == 'unknown version':
|
|
conf.fatal('Could not check the %s version' % module_name)
|
|
|
|
def num(*k):
|
|
if isinstance(k[0], int):
|
|
return Utils.loose_version('.'.join([str(x) for x in k]))
|
|
else:
|
|
return Utils.loose_version(k[0])
|
|
d = {'num': num, 'ver': Utils.loose_version(ret)}
|
|
ev = eval(condition, {}, d)
|
|
if not ev:
|
|
conf.fatal('The %s version does not satisfy the requirements' % module_name)
|
|
else:
|
|
if ret == 'unknown version':
|
|
conf.end_msg(True)
|
|
else:
|
|
conf.end_msg(ret)
|
|
|
|
def configure(conf):
|
|
"""
|
|
Detect the python interpreter
|
|
"""
|
|
v = conf.env
|
|
if getattr(Options.options, 'pythondir', None):
|
|
v.PYTHONDIR = Options.options.pythondir
|
|
if getattr(Options.options, 'pythonarchdir', None):
|
|
v.PYTHONARCHDIR = Options.options.pythonarchdir
|
|
if getattr(Options.options, 'nopycache', None):
|
|
v.NOPYCACHE=Options.options.nopycache
|
|
|
|
if not v.PYTHON:
|
|
v.PYTHON = [getattr(Options.options, 'python', None) or sys.executable]
|
|
v.PYTHON = Utils.to_list(v.PYTHON)
|
|
conf.find_program('python', var='PYTHON')
|
|
|
|
v.PYFLAGS = ''
|
|
v.PYFLAGS_OPT = '-O'
|
|
|
|
v.PYC = getattr(Options.options, 'pyc', 1)
|
|
v.PYO = getattr(Options.options, 'pyo', 1)
|
|
|
|
try:
|
|
v.PYTAG = conf.cmd_and_log(conf.env.PYTHON + ['-c', "import sys\ntry:\n print(sys.implementation.cache_tag)\nexcept AttributeError:\n import imp\n print(imp.get_tag())\n"]).strip()
|
|
except Errors.WafError:
|
|
pass
|
|
|
|
def options(opt):
|
|
"""
|
|
Add python-specific options
|
|
"""
|
|
pyopt=opt.add_option_group("Python Options")
|
|
pyopt.add_option('--nopyc', dest = 'pyc', action='store_false', default=1,
|
|
help = 'Do not install bytecode compiled .pyc files (configuration) [Default:install]')
|
|
pyopt.add_option('--nopyo', dest='pyo', action='store_false', default=1,
|
|
help='Do not install optimised compiled .pyo files (configuration) [Default:install]')
|
|
pyopt.add_option('--nopycache',dest='nopycache', action='store_true',
|
|
help='Do not use __pycache__ directory to install objects [Default:auto]')
|
|
pyopt.add_option('--python', dest="python",
|
|
help='python binary to be used [Default: %s]' % sys.executable)
|
|
pyopt.add_option('--pythondir', dest='pythondir',
|
|
help='Installation path for python modules (py, platform-independent .py and .pyc files)')
|
|
pyopt.add_option('--pythonarchdir', dest='pythonarchdir',
|
|
help='Installation path for python extension (pyext, platform-dependent .so or .dylib files)')
|
|
|