"Hello, World!"],stdout=subprocess.PIPE,stderr=subprocess.PIPE, text=True)# 打印捕获到的输出print("stdout:", completed_process.stdout)print("stderr:", completed_process.stderr)# 获取返回码return_code = completed_process.returncodeprint("Return code:", return_code)...
例如,使用 `subprocess.run()` 执行一个命令并传递数据: ```python result = subprocess.run(['grep', 'hello'], input="hello world\nhello python", text=True, capture_output=True) print(result.stdout) # 输出 "hello world\nhello python" ``` 5. **处理复杂命令** 对于更复杂的命令,尤其是涉...
import subprocess res = subprocess.run(['python', 'hello.py'], stdout=subprocess.PIPE) res2 = subprocess.run(['python', 'fail.py'], stderr=subprocess.PIPE) print('hello.py stdout:', res.stdout) print('fail.py stderr:', res2.stderr) 结果 hello.py stdout: b'hello world!\r\n' ...
解决方法 为了解决stdout内容不全的问题,我们可以通过修改subprocess.Popen的参数,将stdout设置为PIPE,并使用communicate()方法来获取完整的输出。 下面是一个示例代码: importsubprocess# 执行系统命令proc=subprocess.Popen(['ls','-l'],stdout=subprocess.PIPE)# 获取命令输出output,_=proc.communicate()print(output....
importsubprocesstry: result = subprocess.run(['ping','www.baidu.com'], capture_output=True, text=True, check=True)print(1, result.stdout)print(2, result.returncode)print(3, result.stderr)print(4, result.args)print(5, result.check_returncode())exceptsubprocess.CalledProcessErrorase:print(...
2.3 subprocess.check_output() 和subprocess.check_call() 类似,但是其返回的结果是执行命令的输出,而非返回0/1 其实现方式 def check_output(*popenargs, **kwargs): process = Popen(*popenargs, stdout=PIPE, **kwargs) output, unused_err = process.communicate() ...
ret=subprocess.run(command,shell=True,stdout=subprocess.PIPE,stderr=subprocess.PIPE,encoding="utf-8",timeout=1) ifret.returncode==0: print("success:",ret) else: print("error:",ret) runcmd(["dir","/b"])#序列参数 runcmd("exit 1")#字符串参数 ...
>>> print(a) 0 #程序返回的代码值 >>> a = subprocess.call('aaaa',shell=True) /bin/sh: aaaa: 未找到命令 >>> 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. subprocess.check_call() subprocess.check_call(args, *, stdin = None, stdout = None, stderr = None...
subprocess.run(args, *, stdin=None, input=None, stdout=None, stderr=None, shell=False, timeout=None, check=False, universal_newlines=False) subprocess.call(args, *, stdin=None, stdout=None, stderr=None, shell=False, timeout=None) subprocess.check_call(args, *, stdin=None, stdout=None...
p=subprocess.Popen('pip -V',shell=True,stdout=subprocess.PIPE,stderr=subprocess.STDOUT,)# 输出stdoutprint(p.communicate()[0]) 得到结果是byte类型的 代码语言:javascript 代码运行次数:0 运行 AI代码解释 b'pip 21.1.2 from e:\\python36\\lib\\site-packages\\pip (python 3.6)\r\r\n' ...