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54 | <H2><A NAME="SECTION0010810000000000000000"> | |
55 | 8.8.1 Example</A> | |
56 | </H2> | |
57 | <A NAME="termios_Example"></A> | |
58 | <P> | |
59 | Here's a function that prompts for a password with echoing turned | |
60 | off. Note the technique using a separate <tt class="function">tcgetattr()</tt> call | |
61 | and a <tt class="keyword">try</tt> ... <tt class="keyword">finally</tt> statement to ensure that the | |
62 | old tty attributes are restored exactly no matter what happens: | |
63 | ||
64 | <P> | |
65 | <div class="verbatim"><pre> | |
66 | def getpass(prompt = "Password: "): | |
67 | import termios, sys | |
68 | fd = sys.stdin.fileno() | |
69 | old = termios.tcgetattr(fd) | |
70 | new = termios.tcgetattr(fd) | |
71 | new[3] = new[3] & ~termios.ECHO # lflags | |
72 | try: | |
73 | termios.tcsetattr(fd, termios.TCSADRAIN, new) | |
74 | passwd = raw_input(prompt) | |
75 | finally: | |
76 | termios.tcsetattr(fd, termios.TCSADRAIN, old) | |
77 | return passwd | |
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114 | <span class="release-info">Release 2.4.2, documentation updated on 28 September 2005.</span> | |
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