>>> obj=subprocess.Popen('uname -n',shell=True,stdout=subprocess.PIPE) >>> obj.stdout.read() # 通过管道将 uname -n 的执行结果读出, stdin 和 stdout都是一个管道文件对象,所以需要write(),read()等操作方法写入或读出 b'VM_200_111_centos\n' >>> obj=subprocess.Popen('uname -n',shell=Tr...
def subrun(cmd): comply = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE, ) res_stdout = comply.stdout.read() res_stderr = comply.stderr.read() if res_stdout: return res_stdout.decode('utf-8') return res_stderr.decode('utf-8') 1. 2. 3. 4. ...
importsubprocess command=["executable","argument_1","argument_2"] result=subprocess.call(command, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL) 从文档中: subprocess.DEVNULL? Special value that can be used as the stdin, stdout or stderr argument to Popen and indicates that the special ...
returntemp_name, input_file_name defsubprocess_args(include_stdout=True): # See https://github.com/pyinstaller/pyinstaller/wiki/Recipe-subprocess # for reference and comments. kwargs ={ 'stdin': subprocess.PIPE, 'stderr': subprocess.PIPE, 'startupinfo':None, 'env':None } ifhasattr(subproce...
import subprocess class Shell(object): def runCmd(self, cmd): res = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT) sout, serr = res.communicate() return res.returncode, sout, serr, res.pid shell = Shell() ...
使用popen跟踪进程 >>>fromsubprocessimportPIPE>>>p=psutil.Popen(['/home/kevin/miniconda3/bin/python3.10','-c',"print('hello')"],stdout=PIPE)>>>p.name()'python3.10'>>>p.username()'kevin'>>>p.communicate()(b'hello\n',None)
Popen( command, stdout=subprocess.PIPE, stderr=dev_null) shutil.copyfileobj(encoder_process.stdout, self.wfile) except: logger.info('Connection from {} closed.'.format(client_address)) logger.debug(traceback.format_exc()) finally: pid = encoder_process.pid logger.info('Terminating process {...
output = result.stdout error = result.stderr return_code = result.returncode 这样,我们就可以使用subprocess.run启动Python外壳,并获取运行结果的相关信息。 subprocess.run的优势在于可以在Python程序中方便地启动外壳命令,并与外壳命令进行交互。它提供了简洁、灵活的接口,适用于各种场景,如调用外部工具、执行系统...
Using the context manager, the sys.stdout output can be redirected to any other stream or, in conjunction with io.StringIO, to a string. The latter can be especially useful, for example, to capture output from a function that was written to implement a command line interface. It is ...
Popen([c] + args, cwd=cwd, env=env, stdout=subprocess.PIPE, stderr=(subprocess.PIPE if hide_stderr else None)) break except EnvironmentError: e = sys.exc_info()[1] if e.errno == errno.ENOENT: continue if verbose: print("unable to run %s" % dispcmd) print(e) return None, ...