Portable way to refer to the null device?

[Roy Smith]

I need to run a command using subprocess.Popen() and have stdin
connected to the null device. On unix, I would do:

self.process = subprocess.Popen(argv,
env=new_env,
stdout=open(outfile, 'w'),
stderr=open(errfile, 'w'),
stdin=open('/dev/null')
)

but that's not portable to windows. Does Python have a portable way
to get a file object connected to the null device, regardless of what
operating system you're running on?

 

[nick]

I need to run a command using subprocess.Popen() and have stdin
connected to the null device. On unix, I would do:

self.process = subprocess.Popen(argv,
env=new_env,
stdout=open(outfile, 'w'),
stderr=open(errfile, 'w'),
stdin=open('/dev/null')
)

but that's not portable to windows. Does Python have a portable way
to get a file object connected to the null device, regardless of what
operating system you're running on?

I normally just implement my own object:

class DevNull:
def write(self, str):
pass