Popen4 Class Reference

Inheritance diagram for Popen4:

Public Member Functions
def	__init__
Public Member Functions inherited from Popen3
def	__init__
def	poll
def	wait

Data Fields
	pid
	tochild
	fromchild
Data Fields inherited from Popen3
	pid
	tochild
	fromchild
	childerr
	sts

Static Public Attributes
	childerr = None
Static Public Attributes inherited from Popen3
int	sts = -1

Detailed Description

Definition at line 94 of file popen2.py.

Constructor & Destructor Documentation

def __init__	(		self,
			cmd,
			bufsize = -1
	)

Definition at line 97 of file popen2.py.

    def __init__(self, cmd, bufsize=-1):
        _cleanup()
        p2cread, p2cwrite = os.pipe()
        c2pread, c2pwrite = os.pipe()
        self.pid = os.fork()
        if self.pid == 0:
            # Child
            os.dup2(p2cread, 0)
            os.dup2(c2pwrite, 1)
            os.dup2(c2pwrite, 2)
            self._run_child(cmd)
        os.close(p2cread)
        self.tochild = os.fdopen(p2cwrite, 'w', bufsize)
        os.close(c2pwrite)
        self.fromchild = os.fdopen(c2pread, 'r', bufsize)
        _active.append(self)