Have a look at the Windows/Unix/Linux solution posted in the ActiveState Python Recipes, (a fantastic resource), here<http://code.activestate.com/recipes/134892/> - a bit long winded maybe but it works fine under Linux and Windows for me. It's pretty much based on the standard docs solution as already mentioned for Linux/Unix. It use the tty and termios modules in Unix/Linux and the msvcrt module in Windows, again, as already mentioned.
BgEddy On 1 October 2011 11:00, <tutor-requ...@python.org> wrote: > Send Tutor mailing list submissions to > tutor@python.org > > To subscribe or unsubscribe via the World Wide Web, visit > http://mail.python.org/mailman/listinfo/tutor > or, via email, send a message with subject or body 'help' to > tutor-requ...@python.org > > You can reach the person managing the list at > tutor-ow...@python.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Tutor digest..." > > > Today's Topics: > > 1. Re: Input (Steven D'Aprano) > 2. Re: guess age programme (please help) (Steven D'Aprano) > 3. fake defrag revisited (R. Alan Monroe) > 4. Re: guess age programme (please help) (Alan Gauld) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Sat, 01 Oct 2011 12:36:57 +1000 > From: Steven D'Aprano <st...@pearwood.info> > To: tutor@python.org > Subject: Re: [Tutor] Input > Message-ID: <4e867cc9.3050...@pearwood.info> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > Cameron Macleod wrote: > > Hi, > > > > When you type > > > > Input("\n\nPress The Enter Key To Exit") > > > > it forces you to press the enter key to close the program. Why is it the > > enter key instead of e.g. the 'esc' key? > > Because the convention is that you use the Enter key to ENTER > information. That's why it is called Enter. > > Your question is kind of like asking "Why do you use a screw driver for > driving screws, instead of a socket wrench?" <wink> > > In all terminals I know of, the user's input is collected in a buffer > until the Enter key is pressed. Until then, what the user types isn't > available to the caller. This is how raw_input (Python 2) and input > (Python 3) work. > > If you want to read the user's input character by character, as they are > typed, it is actually quite tricky, but it can be done. You can install > a full-blown GUI tool kit, like wxPython or Tkinter, and use that. Or > you can use the curses module, which is a bit lighter than Tkinter but > still pretty heavyweight. For Linux, there's a FAQ: > > > http://docs.python.org/faq/library.html#how-do-i-get-a-single-keypress-at-a-time > > On Windows, you can use msvcrt.getch(). > > > -- > Steven > > > ------------------------------ > > Message: 2 > Date: Sat, 01 Oct 2011 14:13:43 +1000 > From: Steven D'Aprano <st...@pearwood.info> > To: tutor@python.org > Subject: Re: [Tutor] guess age programme (please help) > Message-ID: <4e869377.5030...@pearwood.info> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > Hi Adrian, > > ADRIAN KELLY wrote: > > Hi all, > > can anyone help me with the attached programme. > > I'd love to, but I can't open it :( > > If the truth be known, I could open it if I spent the time and effort. > But that actually is significant time and effort: in my email, your > attachment looks like this: > > Content-Type: application/octet-stream > Content-Transfer-Encoding: base64 > Content-Disposition: attachment; filename="guess age_game(broken)" > > > DQpwcmludCgiXHRXZWxjb21lIHRvICdHdWVzcyBNeSBOdW1iZXInISIpDQpwcmludCgiSSdtIHRo > > aW5raW5nIG9mIGEgbnVtYmVyIGJldHdlZW4gMSBhbmQgMTAwLiIpDQpwcmludCgiVHJ5IHRvIGd1 > > ZXNzIGl0IGluIGFzIGZldyBhdHRlbXB0cyBhcyBwb3NzaWJsZS5cbiIpDQoNCiMgc2V0IHRoZSBp > > bml0aWFsIHZhbHVlcw0KYWdlID0gMzUNCmd1ZXNzID0gIiAiDQp0cmllcyA9IDUNCg0KIyBndWVz > > c2luZyBsb29wDQp3aGlsZSBndWVzcyAhPSBhZ2U6DQogICAgDQogICAgZ3Vlc3MgPSBpbnB1dCgi > > VGFrZSBhIGd1ZXNzOiAiKQ0KICAgIGlmIGd1ZXNzID4gYWdlOg0KICAgICAgICBwcmludCAiTG93 > > ZXIuLi4iLHRyaWVzLCJsZWZ0Ig0KICAgIGVsc2U6DQogICAgICAgIHByaW50ICJIaWdoZXIuLi4i > > LHRyaWVzLCJsZWZ0Ig0KICAgICAgICAgICAgDQogICAgdHJpZXM9dHJpZXMtMQ0KICAgDQoNCnBy > > aW50ICJcblxuWW91IGd1ZXNzZWQgaXQhICBUaGUgYWdlIHdhcyIsIGFnZSwiaXQgb25seSB0b29r > > IHlvdSAiK2B0cmllc2ArIiBhdHRlbXB0cyB0byBnZXQgaXQiDQoNCiAgDQppbnB1dCAoIlxuXG5Q > cmVzcyB0aGUgZW50ZXIga2V5IHRvIGV4aXQuIikNCg== > > > I hope you understand why I don't care enough to go to the time and > effort of saving it to a file, decoding it, renaming it, and then > finally reading it. > > You can make it easier for your readers (and therefore increase the > number of people able and willing to help) if you do this: > > (1) For small amounts of code, just copy and paste it into your email. > Make sure you send ordinary plain text. No HTML email or "rich text", as > that will often break the formatting of the code. > > (2) For larger amounts, say, more than 50 lines, attach it as a file. > Make sure the file has a file extension .txt or .py even if you are > using a computer system that doesn't need file extensions. If .py, > please make sure the file name is legal for Python: no spaces or > brackets or parentheses or dashes. > > > Thanks in advance, > > > > -- > Steven > > > ------------------------------ > > Message: 3 > Date: Sat, 1 Oct 2011 02:06:36 -0400 > From: "R. Alan Monroe" <amon...@columbus.rr.com> > To: tutor@python.org > Subject: [Tutor] fake defrag revisited > Message-ID: <145120072334.20111001020...@columbus.rr.com> > Content-Type: text/plain; charset=us-ascii > > I'm revisiting the fake defrag program I posted about a few months > ago. The concept is basically a screensaver or light show where you > can enjoy watching entropy being reversed as colored blocks order > themselves visually. > > I set it aside for a while because it was too slow, but I finally came > up with a better algorithm for the simulated file creation & deletion. > So I can throroughly scramble my imaginary files. > > Now I want to come up with a simulated defragging, but I wish it for > cosmetic reasons to visit the various areas of the drive in a way that > appears random, to make it less boring. > > The fake "drive" is 64 blocks (shown as 8x8 grid onscreen) for test > purposes. > > The files as-is (fragged): > freelist:[1, 3, 6, 7, 9, 10, 11, 13, 14, 15, 16, 18, 22, 23, 25, 26, 27, > 28, 30, 31, 32, 33, 34, 36, 38, 39, 40, 41, 42, 43, 44, 46, 47, 49, 52, 57, > 58, 59, 60, 61, 62, 63] > 1000: [45, 0] > 1002: [56, 19, 5, 35, 8] > 1014: [21, 54, 2, 20, 53, 17, 12, 4, 37, 48] > 1013: [50, 51, 55, 24, 29] > > I can predict the arrangement of the files in the ideal end state > (defragged) by sorting the filenames in ascending order then assign > them blocks based on an incrementing number and the files' known > sizes: > freelist: [22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, > 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, > 57, 58, 59, 60, 61, 62, 63] > 1000: [0, 1] > 1002: [2, 3, 4, 5, 6] > 1013: [7, 8, 9, 10, 11] > 1014: [12, 13, 14, 15, 16, 17, 18, 19, 20, 21] > > > Which gives this list of before and after blocks: i.e. block 0 is > destined to live at 1 after defrag, block 1 is destined to live at 22, > etc. > > [(0, 1), (1, 22), (2, 14), (3, 23), (4, 19), (5, 4), (6, 24), (7, 25), > (8, 6), (9, 26), (10, 27), (11, 28), (12, 18), (13, 29), (14, 30), > (15, 31), (16, 32), (17, 17), (18, 33), (19, 3), (20, 15), (21, 12), > (22, 34), (23, 35), (24, 10), (25, 36), (26, 37), (27, 38 ), (28, 39), > (29, 11), (30, 40), (31, 41), (32, 42), (33, 43), (34, 44), (35, 5), > (36, 45), (37, 20), (38, 46), (39, 47), (40, 48), (41, 49), (42, 50), > (43, 51), (44, 52), (45, 0), (46, 53), (47, 54), (48, 21), (49, 55), > (50, 7), (51, 8), (52, 56), (53, 16), (54, 13), (55, 9), (56, 2), (57, > 57), (58, 58), (59, 59), (60, 60), (61, 61), (62, 62), (63, 63)] > > I initially thought I could just do a random.shuffle on this list to > achieve the cosmetic randomness, until I realized the real problem is > magically determining the correct sequence in which to perform the > moves without ruining a future move inadverently. > > If I move 0-to-1 first, I've now ruined the future 1-to-22 which ought > to have taken place in advance. > > Is there a deterministic-yet-seemingly-random algorithm out there > whose name I wasn't aware of to be able to google it? > > Alan > > > > ------------------------------ > > Message: 4 > Date: Sat, 01 Oct 2011 09:15:15 +0100 > From: Alan Gauld <alan.ga...@btinternet.com> > To: tutor@python.org > Subject: Re: [Tutor] guess age programme (please help) > Message-ID: <j66i6k$ge1$1...@dough.gmane.org> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > On 01/10/11 05:13, Steven D'Aprano wrote: > > > (2) For larger amounts, say, more than 50 lines, attach it as a file. > > Or put it on one of the several public web pastebins. > That will give us all syntax colouring and no ambiguity about > indentation levels etc that often seems to occur via email. > > http://en.wikipedia.org/wiki/Comparison_of_pastebins > > provides a list... > > -- > Alan G > Author of the Learn to Program web site > http://www.alan-g.me.uk/ > > > > ------------------------------ > > _______________________________________________ > Tutor maillist - Tutor@python.org > http://mail.python.org/mailman/listinfo/tutor > > > End of Tutor Digest, Vol 92, Issue 2 > ************************************ >
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