I can't resist to point here to the Re: How to input one char at a time from stdin? posting in this newsgroup to demonstrate, what this thread is about.
Claudio > >On Tue, 25 Jan 2005 12:38:13 -0700, Brent W. Hughes > ><[EMAIL PROTECTED]> wrote: > >> I'd like to get a character from stdin, perform some action, get another > >> character, etc. If I just use stdin.read(1), it waits until I finish typing > >> a whole line before I can get the first character. How do I deal with this? > > > >This is exactly what you need: > >http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/134892 > >Title: "getch()-like unbuffered character reading from stdin on both > >Windows and Unix" > > Nice to know how, but all those double underscores made my eyes bleed. > Three classes? What's wrong with something simple like the following > (not tested on Unix)? > > > import sys > bims = sys.builtin_module_names > if 'msvcrt' in bims: > # Windows > from msvcrt import getch > elif 'termios' in bims: > # Unix > import tty, termios > def getch(): > fd = sys.stdin.fileno() > old_settings = termios.tcgetattr(fd) > try: > tty.setraw(sys.stdin.fileno()) > ch = sys.stdin.read(1) > finally: > termios.tcsetattr(fd, termios.TCSADRAIN, old_settings) > return ch > else: > raise NotImplementedError, '... fill in Mac Carbon code here' "Davor" <[EMAIL PROTECTED]> schrieb im Newsbeitrag news:[EMAIL PROTECTED] > Is it possible to write purely procedural code in Python, or the OO > constructs in both language and supporting libraries have got so > embedded that it's impossible to avoid them? Also, is anyone aware of > any scripting language that could be considered as "Python minus OO > stuff"? (As you can see I'm completely new to Python and initially > believed it's a nice&simple scripting language before seeing all this > OO stuff that was added in over time) > Thanks, > Davor Here the OO "solution" (activestate recipe 134892): class _Getch: """Gets a single character from standard input. Does not echo to the screen.""" def __init__(self): try: self.impl = _GetchWindows() except ImportError: self.impl = _GetchUnix() def __call__(self): return self.impl() class _GetchUnix: def __init__(self): import tty, sys def __call__(self): import sys, tty, termios fd = sys.stdin.fileno() old_settings = termios.tcgetattr(fd) try: tty.setraw(sys.stdin.fileno()) ch = sys.stdin.read(1) finally: termios.tcsetattr(fd, termios.TCSADRAIN, old_settings) return ch class _GetchWindows: def __init__(self): import msvcrt def __call__(self): import msvcrt return msvcrt.getch() getch = _Getch() -- http://mail.python.org/mailman/listinfo/python-list
