15.10. getpass — Portable password input¶
The getpass module provides two functions:
- 
getpass.getpass([prompt[, stream]])¶
- Prompt the user for a password without echoing. The user is prompted using the string prompt, which defaults to - 'Password: '. On Unix, the prompt is written to the file-like object stream. stream defaults to the controlling terminal (/dev/tty) or if that is unavailable to- sys.stderr(this argument is ignored on Windows).- If echo free input is unavailable getpass() falls back to printing a warning message to stream and reading from - sys.stdinand issuing a- GetPassWarning.- Changed in version 2.5: The stream parameter was added. - Changed in version 2.6: On Unix it defaults to using /dev/tty before falling back to - sys.stdinand- sys.stderr.- Note - If you call getpass from within IDLE, the input may be done in the terminal you launched IDLE from rather than the idle window itself. 
- 
exception getpass.GetPassWarning¶
- A - UserWarningsubclass issued when password input may be echoed.
- 
getpass.getuser()¶
- Return the “login name” of the user. - This function checks the environment variables - LOGNAME,- USER,- LNAMEand- USERNAME, in order, and returns the value of the first one which is set to a non-empty string. If none are set, the login name from the password database is returned on systems which support the- pwdmodule, otherwise, an exception is raised.
