returncode ¶Įxit status of the child process. The arguments used to launch the process. The return value from run(), representing a process that has finished. Malicious program named cmd.exe into a current directory no The currentĭirectory and %PATH% are replaced with %COMSPEC% and Or bytes to bytes on POSIX platforms much like os.environ orĬhanged in version 3.11.3: Changed Windows shell search order for shell=True. This mapping can be str to str on any platform Variables for the new process these are used instead of the defaultīehavior of inheriting the current process’ environment. If env is not None, it must be a mapping that defines the environment By default, file objects are opened in binary mode. The universal_newlines argument is equivalent to text and is providedįor backwards compatibility. Specified encoding and errors or the io.TextIOWrapper default. If encoding or errors are specified, or text is true,įile objects for stdin, stdout and stderr are opened in text mode using the Attributes of thatĮxception hold the arguments, the exit code, and stdout and stderr if they If check is true, and the process exits with a non-zero exit code, aĬalledProcessError exception will be raised. Stdin=PIPE, and the stdin argument may not be used as well. Used, the internal Popen object is automatically created with If used it must be a byte sequence, or a string ifĮncoding or errors is specified or text is true. The input argument is passed to municate() and thus to the TimeoutExpired exception will be re-raised after the child process If the timeoutĮxpires, the child process will be killed and waited for. The timeout argument is passed to municate(). If you wish to captureĪnd combine both streams into one, use stdout=PIPE and stderr=STDOUT Not be supplied at the same time as capture_output. When used, the internal Popen object is automatically created with If capture_output is true, stdout and stderr will be captured. This function are passed through to that interface. Same as that of the Popen constructor - most of the arguments to The full function signature is largely the In Frequently Used Arguments (hence the use of keyword-only notation The arguments shown above are merely the most common ones, described below

run ( args, *, stdin = None, input = None, stdout = None, stderr = None, capture_output = False, shell = False, cwd = None, timeout = None, check = False, encoding = None, errors = None, text = None, env = None, universal_newlines = None, ** other_popen_kwargs ) ¶ Underlying Popen interface can be used directly. The recommended approach to invoking subprocesses is to use the run()įunction for all use cases it can handle. WebAssembly platforms for more information. This module does not work or is not available on WebAssembly platforms

Python launch subprocess in background