1#!/usr/bin/env python 2# encoding: utf-8 3# Thomas Nagy, 2007-2015 (ita) 4# Gustavo Carneiro (gjc), 2007 5 6""" 7Support for Python, detect the headers and libraries and provide 8*use* variables to link C/C++ programs against them:: 9 10 def options(opt): 11 opt.load('compiler_c python') 12 def configure(conf): 13 conf.load('compiler_c python') 14 conf.check_python_version((2,4,2)) 15 conf.check_python_headers() 16 def build(bld): 17 bld.program(features='pyembed', source='a.c', target='myprog') 18 bld.shlib(features='pyext', source='b.c', target='mylib') 19""" 20 21import os, sys 22from waflib import Errors, Logs, Node, Options, Task, Utils 23from waflib.TaskGen import extension, before_method, after_method, feature 24from waflib.Configure import conf 25 26FRAG = ''' 27#include <Python.h> 28#ifdef __cplusplus 29extern "C" { 30#endif 31 void Py_Initialize(void); 32 void Py_Finalize(void); 33#ifdef __cplusplus 34} 35#endif 36int main(int argc, char **argv) 37{ 38 (void)argc; (void)argv; 39 Py_Initialize(); 40 Py_Finalize(); 41 return 0; 42} 43''' 44""" 45Piece of C/C++ code used in :py:func:`waflib.Tools.python.check_python_headers` 46""" 47 48INST = ''' 49import sys, py_compile 50py_compile.compile(sys.argv[1], sys.argv[2], sys.argv[3], True) 51''' 52""" 53Piece of Python code used in :py:class:`waflib.Tools.python.pyo` and :py:class:`waflib.Tools.python.pyc` for byte-compiling python files 54""" 55 56DISTUTILS_IMP = ['from distutils.sysconfig import get_config_var, get_python_lib'] 57 58@before_method('process_source') 59@feature('py') 60def feature_py(self): 61 """ 62 Create tasks to byte-compile .py files and install them, if requested 63 """ 64 self.install_path = getattr(self, 'install_path', '${PYTHONDIR}') 65 install_from = getattr(self, 'install_from', None) 66 if install_from and not isinstance(install_from, Node.Node): 67 install_from = self.path.find_dir(install_from) 68 self.install_from = install_from 69 70 ver = self.env.PYTHON_VERSION 71 if not ver: 72 self.bld.fatal('Installing python files requires PYTHON_VERSION, try conf.check_python_version') 73 74 if int(ver.replace('.', '')) > 31: 75 self.install_32 = True 76 77@extension('.py') 78def process_py(self, node): 79 """ 80 Add signature of .py file, so it will be byte-compiled when necessary 81 """ 82 assert(hasattr(self, 'install_path')), 'add features="py"' 83 84 # where to install the python file 85 if self.install_path: 86 if self.install_from: 87 self.add_install_files(install_to=self.install_path, install_from=node, cwd=self.install_from, relative_trick=True) 88 else: 89 self.add_install_files(install_to=self.install_path, install_from=node, relative_trick=True) 90 91 lst = [] 92 if self.env.PYC: 93 lst.append('pyc') 94 if self.env.PYO: 95 lst.append('pyo') 96 97 if self.install_path: 98 if self.install_from: 99 pyd = Utils.subst_vars("%s/%s" % (self.install_path, node.path_from(self.install_from)), self.env) 100 else: 101 pyd = Utils.subst_vars("%s/%s" % (self.install_path, node.path_from(self.path)), self.env) 102 else: 103 pyd = node.abspath() 104 105 for ext in lst: 106 if self.env.PYTAG and not self.env.NOPYCACHE: 107 # __pycache__ installation for python 3.2 - PEP 3147 108 name = node.name[:-3] 109 pyobj = node.parent.get_bld().make_node('__pycache__').make_node("%s.%s.%s" % (name, self.env.PYTAG, ext)) 110 pyobj.parent.mkdir() 111 else: 112 pyobj = node.change_ext(".%s" % ext) 113 114 tsk = self.create_task(ext, node, pyobj) 115 tsk.pyd = pyd 116 117 if self.install_path: 118 self.add_install_files(install_to=os.path.dirname(pyd), install_from=pyobj, cwd=node.parent.get_bld(), relative_trick=True) 119 120class pyc(Task.Task): 121 """ 122 Byte-compiling python files 123 """ 124 color = 'PINK' 125 def __str__(self): 126 node = self.outputs[0] 127 return node.path_from(node.ctx.launch_node()) 128 def run(self): 129 cmd = [Utils.subst_vars('${PYTHON}', self.env), '-c', INST, self.inputs[0].abspath(), self.outputs[0].abspath(), self.pyd] 130 ret = self.generator.bld.exec_command(cmd) 131 return ret 132 133class pyo(Task.Task): 134 """ 135 Byte-compiling python files 136 """ 137 color = 'PINK' 138 def __str__(self): 139 node = self.outputs[0] 140 return node.path_from(node.ctx.launch_node()) 141 def run(self): 142 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] 143 ret = self.generator.bld.exec_command(cmd) 144 return ret 145 146@feature('pyext') 147@before_method('propagate_uselib_vars', 'apply_link') 148@after_method('apply_bundle') 149def init_pyext(self): 150 """ 151 Change the values of *cshlib_PATTERN* and *cxxshlib_PATTERN* to remove the 152 *lib* prefix from library names. 153 """ 154 self.uselib = self.to_list(getattr(self, 'uselib', [])) 155 if not 'PYEXT' in self.uselib: 156 self.uselib.append('PYEXT') 157 # override shlib_PATTERN set by the osx module 158 self.env.cshlib_PATTERN = self.env.cxxshlib_PATTERN = self.env.macbundle_PATTERN = self.env.pyext_PATTERN 159 self.env.fcshlib_PATTERN = self.env.dshlib_PATTERN = self.env.pyext_PATTERN 160 161 try: 162 if not self.install_path: 163 return 164 except AttributeError: 165 self.install_path = '${PYTHONARCHDIR}' 166 167@feature('pyext') 168@before_method('apply_link', 'apply_bundle') 169def set_bundle(self): 170 """Mac-specific pyext extension that enables bundles from c_osx.py""" 171 if Utils.unversioned_sys_platform() == 'darwin': 172 self.mac_bundle = True 173 174@before_method('propagate_uselib_vars') 175@feature('pyembed') 176def init_pyembed(self): 177 """ 178 Add the PYEMBED variable. 179 """ 180 self.uselib = self.to_list(getattr(self, 'uselib', [])) 181 if not 'PYEMBED' in self.uselib: 182 self.uselib.append('PYEMBED') 183 184@conf 185def get_python_variables(self, variables, imports=None): 186 """ 187 Spawn a new python process to dump configuration variables 188 189 :param variables: variables to print 190 :type variables: list of string 191 :param imports: one import by element 192 :type imports: list of string 193 :return: the variable values 194 :rtype: list of string 195 """ 196 if not imports: 197 try: 198 imports = self.python_imports 199 except AttributeError: 200 imports = DISTUTILS_IMP 201 202 program = list(imports) # copy 203 program.append('') 204 for v in variables: 205 program.append("print(repr(%s))" % v) 206 os_env = dict(os.environ) 207 try: 208 del os_env['MACOSX_DEPLOYMENT_TARGET'] # see comments in the OSX tool 209 except KeyError: 210 pass 211 212 try: 213 out = self.cmd_and_log(self.env.PYTHON + ['-c', '\n'.join(program)], env=os_env) 214 except Errors.WafError: 215 self.fatal('The distutils module is unusable: install "python-devel"?') 216 self.to_log(out) 217 return_values = [] 218 for s in out.splitlines(): 219 s = s.strip() 220 if not s: 221 continue 222 if s == 'None': 223 return_values.append(None) 224 elif (s[0] == "'" and s[-1] == "'") or (s[0] == '"' and s[-1] == '"'): 225 return_values.append(eval(s)) 226 elif s[0].isdigit(): 227 return_values.append(int(s)) 228 else: break 229 return return_values 230 231@conf 232def test_pyembed(self, mode, msg='Testing pyembed configuration'): 233 self.check(header_name='Python.h', define_name='HAVE_PYEMBED', msg=msg, 234 fragment=FRAG, errmsg='Could not build a python embedded interpreter', 235 features='%s %sprogram pyembed' % (mode, mode)) 236 237@conf 238def test_pyext(self, mode, msg='Testing pyext configuration'): 239 self.check(header_name='Python.h', define_name='HAVE_PYEXT', msg=msg, 240 fragment=FRAG, errmsg='Could not build python extensions', 241 features='%s %sshlib pyext' % (mode, mode)) 242 243@conf 244def python_cross_compile(self, features='pyembed pyext'): 245 """ 246 For cross-compilation purposes, it is possible to bypass the normal detection and set the flags that you want: 247 PYTHON_VERSION='3.4' PYTAG='cpython34' pyext_PATTERN="%s.so" PYTHON_LDFLAGS='-lpthread -ldl' waf configure 248 249 The following variables are used: 250 PYTHON_VERSION required 251 PYTAG required 252 PYTHON_LDFLAGS required 253 pyext_PATTERN required 254 PYTHON_PYEXT_LDFLAGS 255 PYTHON_PYEMBED_LDFLAGS 256 """ 257 features = Utils.to_list(features) 258 if not ('PYTHON_LDFLAGS' in self.environ or 'PYTHON_PYEXT_LDFLAGS' in self.environ or 'PYTHON_PYEMBED_LDFLAGS' in self.environ): 259 return False 260 261 for x in 'PYTHON_VERSION PYTAG pyext_PATTERN'.split(): 262 if not x in self.environ: 263 self.fatal('Please set %s in the os environment' % x) 264 else: 265 self.env[x] = self.environ[x] 266 267 xx = self.env.CXX_NAME and 'cxx' or 'c' 268 if 'pyext' in features: 269 flags = self.environ.get('PYTHON_PYEXT_LDFLAGS', self.environ.get('PYTHON_LDFLAGS')) 270 if flags is None: 271 self.fatal('No flags provided through PYTHON_PYEXT_LDFLAGS as required') 272 else: 273 self.parse_flags(flags, 'PYEXT') 274 self.test_pyext(xx) 275 if 'pyembed' in features: 276 flags = self.environ.get('PYTHON_PYEMBED_LDFLAGS', self.environ.get('PYTHON_LDFLAGS')) 277 if flags is None: 278 self.fatal('No flags provided through PYTHON_PYEMBED_LDFLAGS as required') 279 else: 280 self.parse_flags(flags, 'PYEMBED') 281 self.test_pyembed(xx) 282 return True 283 284@conf 285def check_python_headers(conf, features='pyembed pyext'): 286 """ 287 Check for headers and libraries necessary to extend or embed python by using the module *distutils*. 288 On success the environment variables xxx_PYEXT and xxx_PYEMBED are added: 289 290 * PYEXT: for compiling python extensions 291 * PYEMBED: for embedding a python interpreter 292 """ 293 features = Utils.to_list(features) 294 assert ('pyembed' in features) or ('pyext' in features), "check_python_headers features must include 'pyembed' and/or 'pyext'" 295 env = conf.env 296 if not env.CC_NAME and not env.CXX_NAME: 297 conf.fatal('load a compiler first (gcc, g++, ..)') 298 299 # bypass all the code below for cross-compilation 300 if conf.python_cross_compile(features): 301 return 302 303 if not env.PYTHON_VERSION: 304 conf.check_python_version() 305 306 pybin = env.PYTHON 307 if not pybin: 308 conf.fatal('Could not find the python executable') 309 310 # so we actually do all this for compatibility reasons and for obtaining pyext_PATTERN below 311 v = 'prefix SO LDFLAGS LIBDIR LIBPL INCLUDEPY Py_ENABLE_SHARED MACOSX_DEPLOYMENT_TARGET LDSHARED CFLAGS LDVERSION'.split() 312 try: 313 lst = conf.get_python_variables(["get_config_var('%s') or ''" % x for x in v]) 314 except RuntimeError: 315 conf.fatal("Python development headers not found (-v for details).") 316 317 vals = ['%s = %r' % (x, y) for (x, y) in zip(v, lst)] 318 conf.to_log("Configuration returned from %r:\n%s\n" % (pybin, '\n'.join(vals))) 319 320 dct = dict(zip(v, lst)) 321 x = 'MACOSX_DEPLOYMENT_TARGET' 322 if dct[x]: 323 env[x] = conf.environ[x] = dct[x] 324 env.pyext_PATTERN = '%s' + dct['SO'] # not a mistake 325 326 327 # Try to get pythonX.Y-config 328 num = '.'.join(env.PYTHON_VERSION.split('.')[:2]) 329 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) 330 331 if env.PYTHON_CONFIG: 332 # python2.6-config requires 3 runs 333 all_flags = [['--cflags', '--libs', '--ldflags']] 334 if sys.hexversion < 0x2070000: 335 all_flags = [[k] for k in all_flags[0]] 336 337 xx = env.CXX_NAME and 'cxx' or 'c' 338 339 if 'pyembed' in features: 340 for flags in all_flags: 341 conf.check_cfg(msg='Asking python-config for pyembed %r flags' % ' '.join(flags), path=env.PYTHON_CONFIG, package='', uselib_store='PYEMBED', args=flags) 342 343 try: 344 conf.test_pyembed(xx) 345 except conf.errors.ConfigurationError: 346 # python bug 7352 347 if dct['Py_ENABLE_SHARED'] and dct['LIBDIR']: 348 env.append_unique('LIBPATH_PYEMBED', [dct['LIBDIR']]) 349 conf.test_pyembed(xx) 350 else: 351 raise 352 353 if 'pyext' in features: 354 for flags in all_flags: 355 conf.check_cfg(msg='Asking python-config for pyext %r flags' % ' '.join(flags), path=env.PYTHON_CONFIG, package='', uselib_store='PYEXT', args=flags) 356 357 try: 358 conf.test_pyext(xx) 359 except conf.errors.ConfigurationError: 360 # python bug 7352 361 if dct['Py_ENABLE_SHARED'] and dct['LIBDIR']: 362 env.append_unique('LIBPATH_PYEXT', [dct['LIBDIR']]) 363 conf.test_pyext(xx) 364 else: 365 raise 366 367 conf.define('HAVE_PYTHON_H', 1) 368 return 369 370 # No python-config, do something else on windows systems 371 all_flags = dct['LDFLAGS'] + ' ' + dct['CFLAGS'] 372 conf.parse_flags(all_flags, 'PYEMBED') 373 374 all_flags = dct['LDFLAGS'] + ' ' + dct['LDSHARED'] + ' ' + dct['CFLAGS'] 375 conf.parse_flags(all_flags, 'PYEXT') 376 377 result = None 378 if not dct["LDVERSION"]: 379 dct["LDVERSION"] = env.PYTHON_VERSION 380 381 # further simplification will be complicated 382 for name in ('python' + dct['LDVERSION'], 'python' + env.PYTHON_VERSION + 'm', 'python' + env.PYTHON_VERSION.replace('.', '')): 383 384 # LIBPATH_PYEMBED is already set; see if it works. 385 if not result and env.LIBPATH_PYEMBED: 386 path = env.LIBPATH_PYEMBED 387 conf.to_log("\n\n# Trying default LIBPATH_PYEMBED: %r\n" % path) 388 result = conf.check(lib=name, uselib='PYEMBED', libpath=path, mandatory=False, msg='Checking for library %s in LIBPATH_PYEMBED' % name) 389 390 if not result and dct['LIBDIR']: 391 path = [dct['LIBDIR']] 392 conf.to_log("\n\n# try again with -L$python_LIBDIR: %r\n" % path) 393 result = conf.check(lib=name, uselib='PYEMBED', libpath=path, mandatory=False, msg='Checking for library %s in LIBDIR' % name) 394 395 if not result and dct['LIBPL']: 396 path = [dct['LIBPL']] 397 conf.to_log("\n\n# try again with -L$python_LIBPL (some systems don't install the python library in $prefix/lib)\n") 398 result = conf.check(lib=name, uselib='PYEMBED', libpath=path, mandatory=False, msg='Checking for library %s in python_LIBPL' % name) 399 400 if not result: 401 path = [os.path.join(dct['prefix'], "libs")] 402 conf.to_log("\n\n# try again with -L$prefix/libs, and pythonXY name rather than pythonX.Y (win32)\n") 403 result = conf.check(lib=name, uselib='PYEMBED', libpath=path, mandatory=False, msg='Checking for library %s in $prefix/libs' % name) 404 405 if result: 406 break # do not forget to set LIBPATH_PYEMBED 407 408 if result: 409 env.LIBPATH_PYEMBED = path 410 env.append_value('LIB_PYEMBED', [name]) 411 else: 412 conf.to_log("\n\n### LIB NOT FOUND\n") 413 414 # under certain conditions, python extensions must link to 415 # python libraries, not just python embedding programs. 416 if Utils.is_win32 or dct['Py_ENABLE_SHARED']: 417 env.LIBPATH_PYEXT = env.LIBPATH_PYEMBED 418 env.LIB_PYEXT = env.LIB_PYEMBED 419 420 conf.to_log("Include path for Python extensions (found via distutils module): %r\n" % (dct['INCLUDEPY'],)) 421 env.INCLUDES_PYEXT = [dct['INCLUDEPY']] 422 env.INCLUDES_PYEMBED = [dct['INCLUDEPY']] 423 424 # Code using the Python API needs to be compiled with -fno-strict-aliasing 425 if env.CC_NAME == 'gcc': 426 env.append_value('CFLAGS_PYEMBED', ['-fno-strict-aliasing']) 427 env.append_value('CFLAGS_PYEXT', ['-fno-strict-aliasing']) 428 if env.CXX_NAME == 'gcc': 429 env.append_value('CXXFLAGS_PYEMBED', ['-fno-strict-aliasing']) 430 env.append_value('CXXFLAGS_PYEXT', ['-fno-strict-aliasing']) 431 432 if env.CC_NAME == "msvc": 433 from distutils.msvccompiler import MSVCCompiler 434 dist_compiler = MSVCCompiler() 435 dist_compiler.initialize() 436 env.append_value('CFLAGS_PYEXT', dist_compiler.compile_options) 437 env.append_value('CXXFLAGS_PYEXT', dist_compiler.compile_options) 438 env.append_value('LINKFLAGS_PYEXT', dist_compiler.ldflags_shared) 439 440 # See if it compiles 441 conf.check(header_name='Python.h', define_name='HAVE_PYTHON_H', uselib='PYEMBED', fragment=FRAG, errmsg='Distutils not installed? Broken python installation? Get python-config now!') 442 443@conf 444def check_python_version(conf, minver=None): 445 """ 446 Check if the python interpreter is found matching a given minimum version. 447 minver should be a tuple, eg. to check for python >= 2.4.2 pass (2,4,2) as minver. 448 449 If successful, PYTHON_VERSION is defined as 'MAJOR.MINOR' (eg. '2.4') 450 of the actual python version found, and PYTHONDIR and PYTHONARCHDIR 451 are defined, pointing to the site-packages directories appropriate for 452 this python version, where modules/packages/extensions should be 453 installed. 454 455 :param minver: minimum version 456 :type minver: tuple of int 457 """ 458 assert minver is None or isinstance(minver, tuple) 459 pybin = conf.env.PYTHON 460 if not pybin: 461 conf.fatal('could not find the python executable') 462 463 # Get python version string 464 cmd = pybin + ['-c', 'import sys\nfor x in sys.version_info: print(str(x))'] 465 Logs.debug('python: Running python command %r', cmd) 466 lines = conf.cmd_and_log(cmd).split() 467 assert len(lines) == 5, "found %r lines, expected 5: %r" % (len(lines), lines) 468 pyver_tuple = (int(lines[0]), int(lines[1]), int(lines[2]), lines[3], int(lines[4])) 469 470 # Compare python version with the minimum required 471 result = (minver is None) or (pyver_tuple >= minver) 472 473 if result: 474 # define useful environment variables 475 pyver = '.'.join([str(x) for x in pyver_tuple[:2]]) 476 conf.env.PYTHON_VERSION = pyver 477 478 if 'PYTHONDIR' in conf.env: 479 # Check if --pythondir was specified 480 pydir = conf.env.PYTHONDIR 481 elif 'PYTHONDIR' in conf.environ: 482 # Check environment for PYTHONDIR 483 pydir = conf.environ['PYTHONDIR'] 484 else: 485 # Finally, try to guess 486 if Utils.is_win32: 487 (python_LIBDEST, pydir) = conf.get_python_variables( 488 ["get_config_var('LIBDEST') or ''", 489 "get_python_lib(standard_lib=0) or ''"]) 490 else: 491 python_LIBDEST = None 492 (pydir,) = conf.get_python_variables( ["get_python_lib(standard_lib=0, prefix=%r) or ''" % conf.env.PREFIX]) 493 if python_LIBDEST is None: 494 if conf.env.LIBDIR: 495 python_LIBDEST = os.path.join(conf.env.LIBDIR, 'python' + pyver) 496 else: 497 python_LIBDEST = os.path.join(conf.env.PREFIX, 'lib', 'python' + pyver) 498 499 if 'PYTHONARCHDIR' in conf.env: 500 # Check if --pythonarchdir was specified 501 pyarchdir = conf.env.PYTHONARCHDIR 502 elif 'PYTHONARCHDIR' in conf.environ: 503 # Check environment for PYTHONDIR 504 pyarchdir = conf.environ['PYTHONARCHDIR'] 505 else: 506 # Finally, try to guess 507 (pyarchdir, ) = conf.get_python_variables( ["get_python_lib(plat_specific=1, standard_lib=0, prefix=%r) or ''" % conf.env.PREFIX]) 508 if not pyarchdir: 509 pyarchdir = pydir 510 511 if hasattr(conf, 'define'): # conf.define is added by the C tool, so may not exist 512 conf.define('PYTHONDIR', pydir) 513 conf.define('PYTHONARCHDIR', pyarchdir) 514 515 conf.env.PYTHONDIR = pydir 516 conf.env.PYTHONARCHDIR = pyarchdir 517 518 # Feedback 519 pyver_full = '.'.join(map(str, pyver_tuple[:3])) 520 if minver is None: 521 conf.msg('Checking for python version', pyver_full) 522 else: 523 minver_str = '.'.join(map(str, minver)) 524 conf.msg('Checking for python version >= %s' % (minver_str,), pyver_full, color=result and 'GREEN' or 'YELLOW') 525 526 if not result: 527 conf.fatal('The python version is too old, expecting %r' % (minver,)) 528 529PYTHON_MODULE_TEMPLATE = ''' 530import %s as current_module 531version = getattr(current_module, '__version__', None) 532if version is not None: 533 print(str(version)) 534else: 535 print('unknown version') 536''' 537 538@conf 539def check_python_module(conf, module_name, condition=''): 540 """ 541 Check if the selected python interpreter can import the given python module:: 542 543 def configure(conf): 544 conf.check_python_module('pygccxml') 545 conf.check_python_module('re', condition="ver > num(2, 0, 4) and ver <= num(3, 0, 0)") 546 547 :param module_name: module 548 :type module_name: string 549 """ 550 msg = "Checking for python module %r" % module_name 551 if condition: 552 msg = '%s (%s)' % (msg, condition) 553 conf.start_msg(msg) 554 try: 555 ret = conf.cmd_and_log(conf.env.PYTHON + ['-c', PYTHON_MODULE_TEMPLATE % module_name]) 556 except Errors.WafError: 557 conf.end_msg(False) 558 conf.fatal('Could not find the python module %r' % module_name) 559 560 ret = ret.strip() 561 if condition: 562 conf.end_msg(ret) 563 if ret == 'unknown version': 564 conf.fatal('Could not check the %s version' % module_name) 565 566 from distutils.version import LooseVersion 567 def num(*k): 568 if isinstance(k[0], int): 569 return LooseVersion('.'.join([str(x) for x in k])) 570 else: 571 return LooseVersion(k[0]) 572 d = {'num': num, 'ver': LooseVersion(ret)} 573 ev = eval(condition, {}, d) 574 if not ev: 575 conf.fatal('The %s version does not satisfy the requirements' % module_name) 576 else: 577 if ret == 'unknown version': 578 conf.end_msg(True) 579 else: 580 conf.end_msg(ret) 581 582def configure(conf): 583 """ 584 Detect the python interpreter 585 """ 586 v = conf.env 587 if getattr(Options.options, 'pythondir', None): 588 v.PYTHONDIR = Options.options.pythondir 589 if getattr(Options.options, 'pythonarchdir', None): 590 v.PYTHONARCHDIR = Options.options.pythonarchdir 591 if getattr(Options.options, 'nopycache', None): 592 v.NOPYCACHE=Options.options.nopycache 593 594 if not v.PYTHON: 595 v.PYTHON = [getattr(Options.options, 'python', None) or sys.executable] 596 v.PYTHON = Utils.to_list(v.PYTHON) 597 conf.find_program('python', var='PYTHON') 598 599 v.PYFLAGS = '' 600 v.PYFLAGS_OPT = '-O' 601 602 v.PYC = getattr(Options.options, 'pyc', 1) 603 v.PYO = getattr(Options.options, 'pyo', 1) 604 605 try: 606 v.PYTAG = conf.cmd_and_log(conf.env.PYTHON + ['-c', "import imp;print(imp.get_tag())"]).strip() 607 except Errors.WafError: 608 pass 609 610def options(opt): 611 """ 612 Add python-specific options 613 """ 614 pyopt=opt.add_option_group("Python Options") 615 pyopt.add_option('--nopyc', dest = 'pyc', action='store_false', default=1, 616 help = 'Do not install bytecode compiled .pyc files (configuration) [Default:install]') 617 pyopt.add_option('--nopyo', dest='pyo', action='store_false', default=1, 618 help='Do not install optimised compiled .pyo files (configuration) [Default:install]') 619 pyopt.add_option('--nopycache',dest='nopycache', action='store_true', 620 help='Do not use __pycache__ directory to install objects [Default:auto]') 621 pyopt.add_option('--python', dest="python", 622 help='python binary to be used [Default: %s]' % sys.executable) 623 pyopt.add_option('--pythondir', dest='pythondir', 624 help='Installation path for python modules (py, platform-independent .py and .pyc files)') 625 pyopt.add_option('--pythonarchdir', dest='pythonarchdir', 626 help='Installation path for python extension (pyext, platform-dependent .so or .dylib files)') 627 628