what works with the with statement?

[Skaperen]

is there a list of everything that works with the with statement? or, alternatively, everything that does not work with the with statement? i could not find anything at all, one way or the other, regarding how a particular function behaved, so i had to set up a test script.

import os
with os.open('/dev/tty',os.O_WRONLY) as fd:
    write(fd,b'foo\n')
write(fd,b'bar\n')

i don't want to have to do this with everything i might use the with statement with.