subprocess 子进程管理
module_base = pathlib.Path(__file__).absolute().parent.parent return_code = subprocess.call([config.python, '-m', 'link.db.operation', '-m', tmp_filename, tmp_out_filename], cwd=module_base) # return_code = subprocess.Popen([config.python, '-m', 'link.db.operation', '-m', tmp_filename, tmp_out_filename], stdout=subprocess.PIPE, stderr=subprocess.STDOUT, cwd=module_base) # log("stage1_lsh_match_return_code: ",return_code.communicate())