process = subprocess.Popen(["python", "-u"], stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE, text=True, universal_newlines=True) # 写入数据到标准输入 process.stdin.write("print('Hello from child process')\n") process.stdin.flush() # 读取并打印标准输出 output, errors...
subprocess.Popen(args, bufsize=0, executable=None, stdin=None, stdout=None, stderr=None, preexec_fn=None, close_fds=False, shell=False, cwd=None, env=None, universal_newlines=False, startupinfo=None, creationflags=0) 参数args可以是字符串或者序列类型(如:list,元组),用于指定进程的可执行文件及...
p = subprocess.Popen(“app2.exe”, stdin = subprocess.PIPE, / stdout = subprocess.PIPE, stderr = subprocess.PIPE, shell = False) p.stdin.write(’3/n’) p.stdin.write(’4/n’) print p.stdout.read() 1. 2. 3. 4. 5. 6. 7. 8. #—- 结果 —- input x: input y: 3 + 4...
1 subprocess.Popen的构造函数 代码语言:python 代码运行次数:0 复制Cloud Studio 代码运行 class subprocess.Popen(args, bufsize=-1, executable=None, stdin=None, stdout=None, stderr=None, preexec_fn=None, close_fds=True, shell=False, cwd=None, env=None, universal_newlines=False, startup_info=Non...
import subprocess p = subprocess.Popen(“app2.exe”, stdin = subprocess.PIPE, / stdout = subprocess.PIPE, stderr = subprocess.PIPE, shell = False) p.stdin.write(’3/n’) p.stdin.write(’4/n’) print p.stdout.read() #—- 结果 —- ...
建议调用subprocess的run()方法去跟系统进行调用,更高级的方法,使用popen() ;run()方法其实就是封装的popen。 run()方法在python3.5才有,python2.x没有,2.x用subprocess.call(),当然python3.X版本也支持call() 1. 2. 3. 4. 5. 6. 7. 8.
result = subprocess.run(["cat", filename], stdout=subprocess.PIPE, text=True) print(result.stdout) 1. 2. 3. 4. 5. 这将执行cat example.txt命令,其中filename是文件名。 3、处理输入输出 (1)标准输入 subprocess模块还可以将数据传递给外部命令的标准输入。要实现这一点,可以使用stdin参数,并将其设...
process = subprocess.Popen(['python', temp_code_file_path], stdout=subprocess.PIPE, stderr=subprocess.PIPE, stdin = subprocess.PIPE) process.stdin.write(b'Hello') for line in iter(process.stdout.readline, b''): yield f"data: {line.decode('utf-8')}\n\n" ...
Popen(['cpp_program'], stdin=subprocess.PIPE, stdout=subprocess.PIPE) # 向C/C++程序的stdin...
第二个被设计为使用Popen调用另一个,给它一些任意输入: # send.py recv = subprocess.Popen([\"python\", \"recv.py\"], stdin=subprocess.PIPE) recv.stdin.write(b\"Hello\\n\") recv.stdin.write(b\"World.\\n\") 这是我运行它时得到的: ...