我们从Python开源项目中,提取了以下50个代码示例,用于说明如何使用dl.RTLD_NOW。
def write_stub(self, output_dir, ext, compile=False): log.info("writing stub loader for %s to %s", ext._full_name, output_dir) stub_file = (os.path.join(output_dir, *ext._full_name.split('.')) + '.py') if compile and os.path.exists(stub_file): raise DistutilsError(stub_file + " already exists! Please delete.") if not self.dry_run: f = open(stub_file, 'w') f.write( '\n'.join([ "def __bootstrap__():", " global __bootstrap__, __file__, __loader__", " import sys, os, pkg_resources, imp" + if_dl(", dl"), " __file__ = pkg_resources.resource_filename" "(__name__,%r)" % os.path.basename(ext._file_name), " del __bootstrap__", " if '__loader__' in globals():", " del __loader__", if_dl(" old_flags = sys.getdlopenflags()"), " old_dir = os.getcwd()", " try:", " os.chdir(os.path.dirname(__file__))", if_dl(" sys.setdlopenflags(dl.RTLD_NOW)"), " imp.load_dynamic(__name__,__file__)", " finally:", if_dl(" sys.setdlopenflags(old_flags)"), " os.chdir(old_dir)", "__bootstrap__()", "" # terminal \n ]) ) f.close() if compile: from distutils.util import byte_compile byte_compile([stub_file], optimize=0, force=True, dry_run=self.dry_run) optimize = self.get_finalized_command('install_lib').optimize if optimize > 0: byte_compile([stub_file], optimize=optimize, force=True, dry_run=self.dry_run) if os.path.exists(stub_file) and not self.dry_run: os.unlink(stub_file)