Python Termios Module
The termios module provides an interface to the POSIX calls for tty I/O control. For a complete description of these calls, see the termios(3) Unix manual page. It is only available on Unix.
Importing the Module
import termiosFunctions
termios.tcgetattr(fd)
Returns a list containing the tty attributes for file descriptor fd.
# Returns: [iflag, oflag, cflag, lflag, ispeed, ospeed, cc]termios.tcsetattr(fd, when, attributes)
Set the tty attributes for file descriptor fd. The attributes argument is a list like the one returned by tcgetattr(). The when argument determines when the attributes are changed.
Common when constants:
termios.TCSANOW: Change attributes immediately.termios.TCSADRAIN: Change attributes after transmitting all queued output.termios.TCSAFLUSH: Change attributes after transmitting all queued output and discarding all queued input.
Example: Disabling Echo
This example demonstrates how to disable echoing of input characters (similar to entering a password).
import termios
import sys
fd = sys.stdin.fileno()
old_settings = termios.tcgetattr(fd)
try:
new_settings = termios.tcgetattr(fd)
new_settings[3] = new_settings[3] & ~termios.ECHO # lflags
termios.tcsetattr(fd, termios.TCSADRAIN, new_settings)
password = input("Enter password (echo disabled): ")
finally:
termios.tcsetattr(fd, termios.TCSADRAIN, old_settings)
print(f"\nPassword entered: {password}")