On 17/08/11 10:03:00, peter wrote:
Is there an equivalent to msvcrt for Linux users? I haven't found
one, and have resorted to some very clumsy code which turns off
keyboard excho then reads stdin. Seems such an obvious thing to want
to do I am surprised there is not a standard library module for it. Or
have I missed someting (wouldn't be the first time!)
The quick and dirty way is to invoke stty(1) using os.system:
import os
def getpassword(prompt="Password: "):
try:
os.system("stty -echo")
passwd = raw_input(prompt)
finally:
os.system("stty echo")
return passwd
Strictly speaking, os.system is deprecated and you should use
the equivalent invocation of subprocess.call:
import subprocess
def getpassword(prompt="Password: "):
try:
subprocess.call(["stty", "-echo"])
passwd = raw_input(prompt)
finally:
subprocess.call(["stty", "echo"])
return passwd
If you don't want to use an external process, use termios:
import termios, sys
def getpassword(prompt="Password: "):
fd = sys.stdin.fileno()
old = termios.tcgetattr(fd)
new = termios.tcgetattr(fd)
new[3] = new[3] & ~termios.ECHO # lflags
try:
termios.tcsetattr(fd, termios.TCSADRAIN, new)
passwd = raw_input(prompt)
finally:
termios.tcsetattr(fd, termios.TCSADRAIN, old)
return passwd
These functions work on any Posix system (including Mac OSX),
but not on Windows.
Hope this helps,
-- HansM
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