subprocess模块定义了一个类:Popen 代码语言:javascript 代码运行次数:0 运行 AI代码解释 classPopen(object):""" Execute a child programinanewprocess.For a complete descriptionofthe arguments see the Python documentation.Arguments:args:
importsubprocess# 调用cmd并执行命令subprocess.call('cmd.exe /c "cd D:\path\to\your\directory"',shell=True) 1. 2. 3. 4. 上述代码中,我们使用subprocess.call函数调用cmd.exe,并在其中执行了一个命令cd D:\path\to\your\directory,其中的D:\path\to\your\directory是你想要切换到的路径。通过设置sh...
subprocess.run()函数用于执行外部命令,并等待其完成。它返回一个CompletedProcess对象,其中包含有关执行结果的信息。 subprocess.Popen()函数用于创建一个新的进程来执行外部命令。它返回一个Popen对象,可以使用该对象的方法来管理和控制进程的执行。 下面是使用subprocess.run()函数调用外部函数的示例代码: result=subproce...
The subprocess module provides more powerful facilities for spawning new processes and retrieving their results; using that module is preferable to using this function. See the Replacing Older Functions with the subprocess Module section in the subprocess documentation for some helpful recipes. Availability...
subprocess模块定义了一个类: Popen classPopen(object):""" Execute a child program in a new process. For a complete description of the arguments see the Python documentation. Arguments: args: A string, or a sequence of program arguments. ...
print(subprocess.__doc__) 返回值如下: This module allows you to spawn processes, connect to theirinput/output/error pipes, and obtain their return codes. For a complete description of this module see thePythondocumentation. MainAPI===run(...): Runs a command, waits for it to complete, ...
Most of your interaction with the Python subprocess module will be via the run() function. This blocking function will start a process and wait until the new process exits before moving on. The documentation recommends using run() for all cases that it can handle. For edge cases where you ...
有人想的比较简单,直接判断用户的代码里面有没有os.system、exec、subprocess……这些危险关键词不就可以了吗? 这种想法乍看起来没有问题,但细想下,就会发现非常天真。如果用户的代码像下面这样写,你又要如何应对? importrequests code = requests.get('https:...
<Psycopg 2.9.10 documentation>). [end of output] note: This error originates from a subprocess, and is likely not a problem with pip. error: metadata-generation-failed × Encountered error while generating package metadata. ╰─> See above for output. note: This is an issue with the packa...
create_subprocess_shell( cmd, stdout=asyncio.subprocess.PIPE, stderr=asyncio.subprocess.PIPE) stdout, stderr = await proc.communicate() print(f'[{cmd!r} exited with {proc.returncode}]') if stdout: print(f'[stdout]\n{stdout.decode()}') if stderr: print(f'[stderr]\n{stderr.decode(...