python - print: "IOError: [Errno 9] Bad file descriptor" -


i understand why getting "bad file descriptor" error when printing no console post: why getting ioerror: (9, 'bad file descriptor') error while making print statements?.

my question is, how can detect if stdout available? can this:

if os.path.isfile(2):    print "text"

thanks

os.path.isfile() takes file path (a string), not file descriptor (a number), solution not work expect.

you can use os.isatty() instead:

if os.isatty(1):     print "text"

os.isatty() return true if argument open file descriptor connected terminal.

(in passing, note stdout file descriptor 1. stderr file descriptor 2).


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