"tty" --- Terminal control functions#

Código fuente: Lib/tty.py

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The "tty" module defines functions for putting the tty into cbreak and raw modes.

Availability: Unix.

Dado que requiere el módulo "termios", solamente funciona en Unix.

The "tty" module defines the following functions:

tty.cfmakeraw(mode)

Convert the tty attribute list mode, which is a list like the one returned by "termios.tcgetattr()", to that of a tty in raw mode.

Added in version 3.12.

tty.cfmakecbreak(mode)

Convert the tty attribute list mode, which is a list like the one returned by "termios.tcgetattr()", to that of a tty in cbreak mode.

This clears the "ECHO" and "ICANON" local mode flags in mode as well as setting the minimum input to 1 byte with no delay.

Added in version 3.12.

Distinto en la versión 3.12.2: The "ICRNL" flag is no longer cleared. This matches Linux and macOS "stty cbreak" behavior and what "setcbreak()" historically did.

tty.setraw(fd, when=termios.TCSAFLUSH)

Change the mode of the file descriptor fd to raw. If when is omitted, it defaults to "termios.TCSAFLUSH", and is passed to "termios.tcsetattr()". The return value of "termios.tcgetattr()" is saved before setting fd to raw mode; this value is returned.

Distinto en la versión 3.12: The return value is now the original tty attributes, instead of "None".

tty.setcbreak(fd, when=termios.TCSAFLUSH)

Change the mode of file descriptor fd to cbreak. If when is omitted, it defaults to "termios.TCSAFLUSH", and is passed to "termios.tcsetattr()". The return value of "termios.tcgetattr()" is saved before setting fd to cbreak mode; this value is returned.

This clears the "ECHO" and "ICANON" local mode flags as well as setting the minimum input to 1 byte with no delay.

Distinto en la versión 3.12: The return value is now the original tty attributes, instead of "None".

Distinto en la versión 3.12.2: The "ICRNL" flag is no longer cleared. This restores the behavior of Python 3.11 and earlier as well as matching what Linux, macOS, & BSDs describe in their "stty(1)" man pages regarding cbreak mode.

Ver también:

Módulo "termios" Interfaz de control de la terminal de bajo nivel.