open() and EOFError

Chris Angelico rosuav at
Mon Jul 7 14:55:20 CEST 2014

On Mon, Jul 7, 2014 at 10:39 PM, Roy Smith <roy at> wrote:
> $ stty -e
> speed 9600 baud; 24 rows; 80 columns;
> lflags: icanon isig iexten echo echoe -echok echoke -echonl echoctl
>    -echoprt -altwerase -noflsh -tostop -flusho pendin -nokerninfo
>    -extproc
> iflags: -istrip icrnl -inlcr -igncr ixon -ixoff ixany imaxbel iutf8
>    -ignbrk brkint -inpck -ignpar -parmrk
> oflags: opost onlcr -oxtabs -onocr -onlret
> cflags: cread cs8 -parenb -parodd hupcl -clocal -cstopb -crtscts -dsrflow
>    -dtrflow -mdmbuf
> discard dsusp   eof     eol     eol2    erase   intr    kill    lnext
> ^O      ^Y      ^D      <undef> <undef> ^?      ^C      ^U      ^V
> min     quit    reprint start   status  stop    susp    time    werase
> 1       ^\      ^R      ^Q      ^T      ^S      ^Z      0       ^W

Not sure what you're running, but 'stty -e' throws an error for me
(Debian Wheezy). I get fairly similar output from 'stty -a', though;
and it's marginally more parseable:

rosuav at sikorsky:~$ stty -a
rosuav at sikorsky:~$ stty -a
speed 38400 baud; rows 55; columns 190; line = 0;
intr = ^C; quit = ^\; erase = ^?; kill = ^U; eof = ^D; eol = M-^?;
eol2 = M-^?; swtch = M-^?; start = ^Q; stop = ^S; susp = ^Z; rprnt =
^R; werase = ^W; lnext = ^V; flush = ^O;
min = 1; time = 0;
-parenb -parodd cs8 hupcl -cstopb cread -clocal -crtscts
-ignbrk brkint -ignpar -parmrk -inpck -istrip -inlcr -igncr icrnl ixon
-ixoff -iuclc ixany imaxbel iutf8
opost -olcuc -ocrnl onlcr -onocr -onlret -ofill -ofdel nl0 cr0 tab0 bs0 vt0 ff0
isig icanon iexten echo echoe echok -echonl -noflsh -xcase -tostop
-echoprt echoctl echoke

(That's off a maximized window. If I restore the window, I get a more
classic 24x80.)

The same info can be queried in Python via
termios.tcgetattr()[6][termios.VEOF] but you then have to parse that
to interpret it for a human (it comes out as b'\4', which you have to
figure out means ^D). I'm not sure if there's a utility function
anywhere for "give me the human readable form of this".


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