🌐 Mailman 3 August 1999 - Tutor - python.org

second test
by Barry A. Warsaw Aug. 31, 1999

Aug. 31, 1999

please ignore. seeing if the graceperiod works.

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Testing new replybot text
by Barry A. Warsaw Aug. 31, 1999

Aug. 31, 1999

Please ignore.

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1.5.1 -> 1.5.2 cgi.Fieldstorage
by Sean Conway Aug. 30, 1999

Aug. 30, 1999

Hello everyone. I am experimenting with Python + CGI, using Apache 1.3.6 and PyApache. I was using Python 1.5.1 with no problems. However, when I tried to upgrade to Python 1.5.2, the script below stopped working. Reverting back to 1.5.1 made the error go away. Here is the script that fails with 1.5.2, and the error it generates: ---script--- import cgi, string input = open('/home/httpd/cgi-bin/data', 'r').readlines() form = cgi.FieldStorage() print "Content-type: text/html\n\n<HTML><HEAD><TITLE>Test</TITLE></HEAD><BODY>" print "You voted for option: ", form["PRstats"].value, "Current votes:" x = string.atoi(form["PRstats"].value) input[x] = str(string.atoi(input[x]) + 1) + "\n" print "Votes for option 0: ", input[0], "Votes for option 1: ", input[1], "Votes for option 2: ", input[2], "Votes for option 3: ", input[3] open('/home/httpd/cgi-bin/data', 'w').writelines(input) print "</BODY></HTML>" ---error--- Traceback (innermost last): File "/home/httpd/cgi-bin/test2.py", line 3, in ? form = cgi.FieldStorage() File "/usr/lib/python1.5/cgi.py", line 792, in __init__ method = string.upper(environ['REQUEST_METHOD']) TypeError: impossible<bad format char>, string This is a simple voting script that is 1/2 finished. What has changed in Python 1.5.2 with regards to cgi.FieldStorage()? I suppose it is possible that the RPM I d/led of Python 1.5.2 is partly corrupted, although I don't think that is very likely. Thanks in advance, Sean Conway P.S. Thanks to everyone who helped me out with my previous problem.

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RE: [Tutor] Teach Me
by david dumore Aug. 30, 1999

Aug. 30, 1999

Hello I got a question. Ok someone must of figured out my password to my other hotmail account that I use along with this one .I can not log into it. Is there any way that I could hack into it and change my password in my preferences? Is there any way that I could decode the password that someone has set it to without my knowing? Is there anyway to hack or figure out the secret question that this person has set my account to? I need help! I want to access to other e-mail account! Thanks David ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

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TCL fileevent --> Python ???
by Evgeny Roubinchtein Aug. 29, 1999

Aug. 29, 1999

I am teaching myself Tkinter by rewriting the examples in "Practical Programming in TCL and Tk" in Python. They have a sample application which runs a command and captures and displays the commands output in a Text widget. The user types the command in an Entry widget, clicks the "Run" button and then "it cooks". I am stuck on translating the "Run" button's callback; the TCL code is: proc Run {} { global command input log btnRun # command -- is the text user typed in the Entry widget # log -- is the Text widget in which the command's output is captured # btnRun -- is the "Run" button if [catch {open "| $command |& cat"} input] { # some kind of error happened $log insert end $input\n } else { # opened the pipe OK fileevent $input readable Log # call Log whenever something # comes in from the pipe # how do you say something similar # in Python? $log insert end $command\n $btnRun config -text Stop -command Stop } } Well, I am sort of stumped on translating "fileevent": looking at its man page, it behaves just like the TK/Tkinter's "bind" method, except that "bind" calls a procedure when there's an X event, and "filevent" calls procedure when some input is waiting to be read, so the read won't 'block', so the application doesn't look "frozen" to the user. Looking through Python library I didn't find anything I could use "out of the box", I think if I started a new thread (or used fork) I could have one process/thread handling the input from the pipe and the other handling the button clicks -- I will play with that idea but if this sounds like something someone has done before, I would love to hear from them. Thank you -- Evgeny Roubinchtein, eroubinc(a)u.washington.edu ................... ..... REALITY.SYS Corrupted - Unable to recover Universe

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Fractals using Python
by Vidyasagar Govind Aug. 28, 1999

Aug. 28, 1999

I am a newbie to Python, and really like it especially with its numerical extensions. Can Python be used for plotting outputs from mathematical formulae? I used to use VB for plotting the output of fractal formulae using simple commands for drawing lines, circles,etc. Does Python have equivalent commands/modules? If so where can I get them? Thanks! ---------------------------------- E-Mail: Vidyasagar Govind <vidya(a)singnet.com.sg> Date: 28-Aug-99 Time: 15:26:25 This message was sent by XFMail ----------------------------------

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Re: Tutor digest, Vol 1 #111 - 13 msgs
by Daniel Gau Aug. 28, 1999

Aug. 28, 1999

tutor-admin(a)python.org wrote: > > Send Tutor mailing list submissions to > tutor(a)python.org > > To subscribe or unsubscribe via the web, visit > http://www.python.org/mailman/listinfo/tutor > or, via email, send a message with subject or body 'help' to > tutor-request(a)python.org > You can reach the person managing the list at > tutor-admin(a)python.org > > When replying, please edit your Subject line so it is more specific than > "Re: Contents of Tutor digest..." > > Today's Topics: > > 1. Getting Started (Kapil Malhotra) > 2. RE: Python question for beginners... (alan.gauld(a)bt.com) > 3. Re: Getting Started (Joseph J. Strout) > 4. help (Aaron Marzec) > 5. Re: help (Tim Wilson) > 6. Re: help (Joseph J. Strout) > 7. Auto-responder -- request for comments (David Ascher) > 8. Re: Auto-responder -- request for comments (Ivan Van Laningham) > 9. Re: Initializing Tupples (Jonathon) > 10. Re: Initializing Tupples (Joseph J. Strout) > 11. Re: help (Stephen) > 12. RE: how do I get pythons GUI to work (Billy) > 13. how do I get the python GUI to work (Billy) > > --__--__-- > > Message: 1 > From: "Kapil Malhotra" <malhotra_kapil(a)hotmail.com> > To: tutor(a)python.org > Date: Thu, 26 Aug 1999 23:24:49 PDT > Subject: [Tutor] Getting Started > > This is Kapil Malhotra from India. I need to learn Python for my project. My > mail ID is malhotra_kapil(a)hotmail.com . Please send me any stuff which I > might find useful. > > Regards, > > Kapil > > ______________________________________________________ > Get Your Private, Free Email at http://www.hotmail.com > > --__--__-- > > Message: 2 > From: alan.gauld(a)bt.com > To: markm(a)lineo.com, tutor(a)python.org > Subject: RE: [Tutor] Python question for beginners... > Date: Fri, 27 Aug 1999 09:50:13 +0100 > > > I am doing a cgi script. I need the script to execute a program and > > return the program output as a variable preferably. > > I tried using os.system("/usr/local/bin/program") but that > > Look at os.popen(...) > > BUT the other issue in CGI work is that your program will > execute as the cgi or www user. Often that user has very > restricted access to system commands and files (for good > security reasons!) > > > to work from within the script. It works in the python interpretor > > That could be the security restriction above.... > > > not within the script. Maybe the os.execv command???I don't > > Almost certainly not - unless you os.fork() first. > execv will *replace* your Python program with whatever > program you execute. > > Alan G. > > --__--__-- > > Message: 3 > Date: Fri, 27 Aug 1999 07:33:16 -0700 > To: "Kapil Malhotra" <malhotra_kapil(a)hotmail.com>, tutor(a)python.org > From: "Joseph J. Strout" <joe(a)strout.net> > Subject: Re: [Tutor] Getting Started > > At 11:24 PM -0700 08/26/99, Kapil Malhotra wrote: > >This is Kapil Malhotra from India. I need to learn Python for my > >project. My mail ID is malhotra_kapil(a)hotmail.com . Please send me > >any stuff which I might find useful. > > That's not how it works. The "stuff you might find useful" is all at > http://www.python.org. This mailing list is for specific topics and > questions -- when you have one, ask it, and you'll get an answer. > > Cheers, > -- Joe > > ,------------------------------------------------------------------. > | Joseph J. Strout Biocomputing -- The Salk Institute | > | joe(a)strout.net http://www.strout.net | > `------------------------------------------------------------------' > > --__--__-- > > Message: 4 > From: Aaron Marzec <argskate(a)netzero.net> > To: tutor(a)python.org > Date: 26 Aug 99 22:15:11 -0500 > Subject: [Tutor] help > > can you give me some tips on your python software v1.52 > > P.S Im a newbie > > ________________________________________________________ > NetZero - We believe in a FREE Internet. Shouldn't you? > Get your FREE Internet Access and Email at > http://www.netzero.net/download/index.html > > --__--__-- > > Message: 5 > Date: Fri, 27 Aug 1999 12:47:38 -0500 (CDT) > From: Tim Wilson <wilson(a)chemsun.chem.umn.edu> > To: Aaron Marzec <argskate(a)netzero.net> > cc: tutor(a)python.org > Subject: Re: [Tutor] help > > On 26 Aug 1999, Aaron Marzec wrote: > > > can you give me some tips on your python software v1.52 > > > > P.S Im a newbie > > You might want to start with the Python Tutorial at > http://www.python.org/doc/current/tut/tut.html > > If you're interested in books, I would recommend "Learning Python" by > Lutz, Ascher, and Willison from O'Reilly and Associates. You can get it at > Amazon at > http://www.amazon.com/exec/obidos/ASIN/1565924649/o/qid=935775937/sr=8-1/00… > > Have fun. > > -Tim > > -- > Timothy Wilson | "The faster you | Check out: > Henry Sibley H.S. | go, the shorter | http://slashdot.org/ > W. St. Paul, MN, USA | you are." | http://linux.com/ > wilson(a)chem.umn.edu | -Einstein | http://www.mn-linux.org/ > > --__--__-- > > Message: 6 > Date: Fri, 27 Aug 1999 10:49:36 -0700 > To: Aaron Marzec <argskate(a)netzero.net>, tutor(a)python.org > From: "Joseph J. Strout" <joe(a)strout.net> > Subject: Re: [Tutor] help > > At 10:15 PM -0500 08/26/99, Aaron Marzec wrote: > > >can you give me some tips on your python software v1.52 > > Sure, ask a specific question and you'll get a specific answer. Ask > a general answer like this and you'll get a general answer like "Read > the docs and experiment." ;) > > Cheers, > -- Joe > > ,------------------------------------------------------------------. > | Joseph J. Strout Biocomputing -- The Salk Institute | > | joe(a)strout.net http://www.strout.net | > `------------------------------------------------------------------' > > --__--__-- > > Message: 7 > Date: Fri, 27 Aug 1999 12:04:20 -0700 (Pacific Daylight Time) > From: David Ascher <da(a)ski.org> > To: tutor(a)python.org > Subject: [Tutor] Auto-responder -- request for comments > > I'm going to add an autoresponder which will be sent to folks who are > posting to the tutor list for the first time in a long time. Here is my > first draft of the message. If anyone has any edits they'd like to see > happen, let me know. > > --david > > Your message for tutor(a)python.org, the Python programming tutor list, > has been received and is being delivered. This automated response is > sent to those of you new to the Tutor list, to point out a few > resources that can help with answering your own questions, or improve > the chances of getting a useful answer from the other subscribers. > > If your question is something akin to: > > "I've just heard about Python, and it sounds great! Where can I > find out more on how to program with Python?" > > or: > > "What's Python?" > > please read section 1 below. > > On the other hand, if your question is: > > "I've heard that Python is good for hacking -- I want to know more!" > > or > > "Can you teach me how to break into a computer with Python?" > > please read section 2 at the bottom of this email. > > Section 1: > ---------- > > The most comprehensive overview of python.org help resources is at > http://www.python.org/Help.html . The Python FAQ is available at > http://www.python.org/doc/FAQ.html and it has answers to many > questions that people ask, possibly including your question. Another > wealth of information and experience can be found via the python.org > searches, at http://www.python.org/search/ . There you'll find > comprehensive, easy-to-use searches over the python.org web site and > the python newsgroup (comp.lang.python, also available as a mailing > list, python-list(a)python.org). > > Finally, when you do send email to the Tutor list, be as clear as you > can about the problem, including, when relevant, details like: > > - Precise error messages, including complete tracebacks > - The hardware platform (available in the Python sys module as sys.platform) > - The python version (sys.version) > - The python search path (sys.path) > > In general, be specific about what was going on connected with the > problem or what specific concept you're having difficulties with. The > better the info you provide, the more likely the helpers will be able > to glean the answer... > > Note that no one is paid to read the tutor list or provide answers, > and most readers often have other work that demands their attention. > Well-posed requests for help are usually answered fairly promptly, but > occasionally a request slips by, so if you do not get a response with > one or two working days (it's usually quicker than that), please feel > free to send a followup, asking whether anyone is working on your > question. > > Anyway, your message is being delivered to the Tutor list as this one > is being sent. However, if your question was about as detailed as > "Teach me how to program in Python", do not count on an answer -- this > email contains all the information you need to start. Come back with > a more precise question, and we'll be glad to help. > > Thanks! > > Section 2: > ---------- > > We often get requests which ask about hacking or cracking or breaking > into computers. If you haven't yet, go read Eric Raymond's seminal > article "How To Become a Hacker" > (http://www.tuxedo.org/~esr/faqs/hacker-howto.html). If you want help > learning how to hack the way Eric defines the word, then come back to > us (and read Section 1 above). If you want help learning how to > crack, go look elsewhere -- we're not interested in helping you do > that. > > --__--__-- > > Message: 8 > Date: Fri, 27 Aug 1999 13:27:49 -0600 > From: Ivan Van Laningham <ivanlan(a)callware.com> > Organization: Callware Technologies, Inc. > CC: tutor(a)python.org > Subject: Re: [Tutor] Auto-responder -- request for comments > > Hi All-- > > David Ascher wrote: > > > > I'm going to add an autoresponder which will be sent to folks who are > > posting to the tutor list for the first time in a long time. Here is my > > first draft of the message. If anyone has any edits they'd like to see > > happen, let me know. > > > > A good idea! > > [bobbitt] > > However: > > > > > Section 2: > > ---------- > > > > We often get requests which ask about hacking or cracking or breaking > > into computers. If you haven't yet, go read Eric Raymond's seminal > > article "How To Become a Hacker" > > (http://www.tuxedo.org/~esr/faqs/hacker-howto.html). > > Well, I take issue with the word "seminal" here. Webster's online says: > > Main Entry: sem搏搖al > Pronunciation: 'se-m&-n&l > Function: adjective > Etymology: Middle English, from Middle French, from Latin seminalis, > from semin-, semen seed -- more at SEMEN > Date: 14th century > 1 : of, relating to, or consisting of seed or semen > 2 : containing or contributing the seeds of later development : > CREATIVE, ORIGINAL <a seminal book> <one of the most seminal of the > great poets> > - sem搏搖al損y /-n&l-E/ adverb > > I would suggest "important," "influential," "creative," or possibly > even "ovular." The last has the same sense of containing or > contributing the seeds of later development, but from a slightly > different perspective;-) > > <now-what-was-that-thread-about-stroking-your-WHAT?>-ly y'rs, > Ivan;-) > ---------------------------------------------- > Ivan Van Laningham > Callware Technologies, Inc. > ivanlan(a)callware.com > ivanlan(a)home.com > http://www.pauahtun.org > See also: > http://www.foretec.com/python/workshops/1998-11/proceedings.html > Army Signal Corps: Cu Chi, Class of '70 > ---------------------------------------------- > > --__--__-- > > Message: 9 > Date: Fri, 27 Aug 1999 19:46:12 +0000 (UTC) > From: Jonathon <jblake(a)stamp-coin.com> > To: tutor(a)python.org > Subject: Re: [Tutor] Initializing Tupples > > On Wed, 25 Aug 1999, Joseph J. Strout wrote: > > >So there must be a difference between what you're telling us, and > > Source code from the program I am writing is available at > http://www.stamp-coin.com/python/script-error/index.html > > >copy of Python is seriously screwed up (unlikely). Or, this error > >occurs not on the code you gave us, but on later code where you try > >to... > > Possible. > > >Well, you can't. You need to use a list for that; tuples are immutable. > > Let's see if I understand the difference between lists and > tuples. > > Once a Tuple is created, it can not be changed. > Once a List is created, both it, and its contents can > be changed --- increased, decreased etc. > > IE: > > Example_Tuple = ( "joe"0, "curly", "moe" ) > and Example_Tuple retains that value for the duration > of the program. > > Example_List = [ "joe", "curly", "moe" ] > > Example_List[0] = "larry" > > Changes the 0 element to larry. > > Example_List.insert(3, "joe") > > Adds "joe" to the list, as the third element. > > Example_List[3] = 2 > > Makes that a number, instead of a string. > > << All this appears to work at the python prompt. >> > > xan > > jonathon > > --__--__-- > > Message: 10 > Date: Fri, 27 Aug 1999 13:19:28 -0700 > To: Jonathon <jblake(a)stamp-coin.com>, tutor(a)python.org > From: "Joseph J. Strout" <joe(a)strout.net> > Subject: Re: [Tutor] Initializing Tupples > > At 7:46 PM +0000 08/27/99, Jonathon wrote: > > > Let's see if I understand the difference between lists and > > tuples. > > > > Once a Tuple is created, it can not be changed. > > Once a List is created, both it, and its contents can > > be changed --- increased, decreased etc. > > Yep, that's it. (And, for the record, strings are just like tuples.) > > > Example_Tuple = ( "joe", "curly", "moe" ) > > and Example_Tuple retains that value for the duration > > of the program. > > Well, not exactly -- you could easily rebind Example_Tuple to > something else, e.g.: > > Example_Tuple = Example_Tuple[:2] # keep only the first two items > or > Example_Tuple = Example_Tuple + ("larry", "guido") # append two items > > These work because the slice operator [:] or the addition operator > creates a *new* tuple, rather than modifying the old one in place; > and then this new tuple is bound to the name "Example_Tuple". Does > this make sense? > > Cheers, > -- Joe > > ,------------------------------------------------------------------. > | Joseph J. Strout Biocomputing -- The Salk Institute | > | joe(a)strout.net http://www.strout.net | > `------------------------------------------------------------------' > > --__--__-- > > Message: 11 > Date: Fri, 27 Aug 1999 18:15:59 -0400 (EDT) > From: Stephen <stephen(a)webadmins.com> > To: Tim Wilson <wilson(a)chemsun.chem.umn.edu> > cc: Aaron Marzec <argskate(a)netzero.net>, tutor(a)python.org > Subject: Re: [Tutor] help > > I just picked up python in the last few weeks and started scripting @ work. Take > my word for it... skip 'Learning Python' and go directly to 'Programming Python' > if you're already versed in another scripting language (perl/shell/etc). > > The 'Learning Python' book put me to sleep... > > /***************************************************************\ > * Stephen ("xinu") Klassen -- Unix Systems Administrator * > * Website: http://stephen.webadmins.com/ UIN: 19224641 (wk) * > \***************************************************************/ > > On Fri, 27 Aug 1999, Tim Wilson wrote: > > > On 26 Aug 1999, Aaron Marzec wrote: > > > > > can you give me some tips on your python software v1.52 > > > > > > P.S Im a newbie > > > > You might want to start with the Python Tutorial at > > http://www.python.org/doc/current/tut/tut.html > > --__--__-- > > Message: 12 > From: "Billy" <watchman1(a)bigfoot.com> > To: <tutor(a)python.org> > Date: Fri, 27 Aug 1999 23:46:02 -0400 > charset="iso-8859-1" > Subject: [Tutor] RE: how do I get pythons GUI to work > > I am running win98 when I click on the python GUI the Herd drive works but > the program never starts I can only use the command line > Billy Estes How could I get characters one by one from stdin without using "curses" module? Is there any way to check the input every time the user press a key? -- ~ Daniel Gau <b4705021(a)im.ntu.edu.tw> 'v' Linux Notes http://www.linux.org.tw/~plateau/linux_notes/index.htm // \\ H-Zone http://www.linux.org.tw/hardware/index.php3 /( )\ TwLUG http://www.linux.org.tw/ ^`~'^ ICQ Number 30932232

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Re: [Tutor] how do I get the python GUI to work
by G. Norton Aug. 28, 1999

Aug. 28, 1999

--- Billy <watchman1(a)bigfoot.com> wrote: > I am running win98 when I click on the python GUI > icon the hard drive try to > work but the GUI never comes up > Billy Estes > > > > _______________________________________________ > Tutor maillist - Tutor(a)python.org > http://www.python.org/mailman/listinfo/tutor > Billy, I also have Windows98 and had the same problem.The problem is with your path.I don't know if this is "The" way do fix it but it worked for me.What I did was uninstall everything, set the path and reinstalled.Everything works fine now.I don't know your programming background, but just in case you don't know what i'm talking about I'll try to save you a few emails and some headache time and explain path now.(If you do, ignore the rest of this) BUT: click start go to Run and type sysedit the first window you should see is C:\\Autoexec.bat this is where you set your path.This is my path:(I don't recommend cutting and pasting.Type it in to play it safe!) set PYROOT=c:\PROGRA~1\Python PATH %PYROOT%;%PATH% set PYTHONPATH=.;%PYROOT%;%PYROOT%\lib;%PYROOT%\lib\plat-win;%PYROOT%\lib\lib-tk;%PYROOT%\PIL;%PYROOT%ext\pyds;%PYROOT%ext\lib; set TCL_LIBRARY=%PYROOT%\tcl8.0\library set TK_LIBRARY=%PYROOT%\tk8.0\library There should be only 6 lines. >From "PYTHONPATH=" to "ROOT%ext\lib;" is one line. (sorry can't format my email) Reboot your computer and it should work. Good Luck, G.Norton __________________________________________________ Do You Yahoo!? Bid and sell for free at http://auctions.yahoo.com

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how do I get the python GUI to work
by Billy Aug. 28, 1999

Aug. 28, 1999

I am running win98 when I click on the python GUI icon the hard drive try to work but the GUI never comes up Billy Estes

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RE: how do I get pythons GUI to work
by Billy Aug. 28, 1999

Aug. 28, 1999

I am running win98 when I click on the python GUI the Herd drive works but the program never starts I can only use the command line Billy Estes -

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