🌐 Mailman 3 August 2001 - Tutor - python.org

Is Python powerful enough for this?
by A Oct. 29, 2001

Oct. 29, 2001

Hi, I have some webpages that contain FORMS. Each form has input fields and also some hidden fields. How can I easily get urlencoded string from all these fields like Key1=Value1&Key2=Value2&Key3=Value3 For example: I have a following web page <html> <head> </head> <body> <form method="POST" action="c.cgi"> <p><input type="text" name="T1" size="20"></p> <p><input type="checkbox" name="C1" value="ON"></p> <p><textarea rows="2" name="S1" cols="20"></textarea></p> <p><input type="submit" value="Submit" name="B1"><input type="reset" value="Reset" name="B2"></p> </form> </body> </html> >From the above I would like to receive T1=&S1=&C1=&B1=Submit Thank you for help. Ladislav

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Why I'm learning Python (OT and long)
by Bill Tolbert Sept. 2, 2001

Sept. 2, 2001

I spent some time reading Useless Python last night and went to bed totally depressed. I feel that even Useless is above my skill level. So, what follows is the story of why I'm trying to learn Python. Perhaps some will understand; some may be in a similar situation; some may want to send me money. Maybe it can become an installment for the soapbox on Useless. ====================================================== So here I sit, pretending that I know a little something about Python. I own 5 Python books; I have been attempting to program in Python for over a year; my title is something like "systems analyst"; I have a wife, many children and a dog. Allow me to explain how this all happened... I never pretended to be a programmer. I was trained to do public health research. But, the tight job market of recent years forced me to take on various computer tasks in the course of my research. It started with WordPerfect. I was something of a WordPerfect wonder kid. I could somehow do anything in WordPerfect. Looking back, I guess this was my first programming - WordPerfect macros. I just grokked other macros and read the help files. Massively complicated mail merges, text manipulation, complex and tedious tasks rendered trivial in the wake of my macros. I began to build solutions for the secretaries, co-workers, people on the street. Then M$ began pushing that third-rate wannabe word processor of theirs and nothing was ever the same. So, I sorta learned MS Access the same way. Of course I knew Access was just a desktop database. But it was fine around the office. I wrote a few simple applications, and that was fine; after all, I'm a researcher not a programmer. But guess what? People started coming to be with requests for Access applications. And before I knew it, I was writing a very complex accounting system for my employer. I was being labeled, and I knew it. I tried to resist but it was futile. I thought long and hard about going back to school for a PhD in epidemiology; I was trying to escape becoming a programmer. All the while there were bills to pay and groceries to buy and mouths to feed. I didn't have time go back to school. I couldn't afford it. And then one day I was offered a real job as a programmer... Some folks in the private research world had decided to build a large system in Access. I was doing some part time work for this company because as a university employee, I couldn't make ends meet. They knew me as a WordPerfect and Access guy, and asked me to join the project full time. I was flattered but declined; after all, I'm a researcher not a programmer. I told them repeatedly "I'm not a programmer". But they were desperate. I knew they were desperate. I was the only person they could find. And even though the university didn't pay very well, I still loved my job there. So one day they asked, "What would it take?". Have you ever been asked that question? I was 29 years old and driving a worn out car I paid 450 dollars for. Three kids. Working a full time job and a part time job. So, I told them what it would take and they said ok. Of course my wife was happy. This meant financial freedom. Perhaps we could have a normal life. But I was afraid. The day would come when they would learn the truth and I would be thrown out like the pitiful code I write. Well, it's been nearly four years and I haven't been thrown out yet. I was assigned the title systems analyst by the people who were in charge of making up the business cards. I guess I've fooled them so far. But I haven't fooled myself. Sure I can get by in Access/VB. But I know Access is kid stuff compared to Oracle and MySQL. I want to write solutions for non-MS platforms; I want to understand the difference between bound and unbound methods; I want to understand other people's code; I want to be Danny Yoo!!! So that's why I'm trying to learn Python. To bring legitimacy to an otherwise illegitimate career. Some of my Python scripts seem ok. They do useful work on a daily basis. And yet, even a blind squirrel finds a nut sometimes. I'm plagued by the feeling that I am a blind squirrel. Thanks folks. This has been therapeutic. Python people are the best and this list is fantastic. Today I'm going to make one of my useful scripts run from a Tk button widget. And I'll stumble through. Perhaps I'll get lucky and find a nut. Bill

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Pythonica (symbolic algebra)
by Christopher Smith Sept. 1, 2001

Sept. 1, 2001

joe(a)strout.net writes: >At 9:29 AM -0500 8/30/01, Christopher Smith wrote: > >>I've been looking for something like Pythonica...glad I found it! >>Thanks for the work that you've done on this. A few comments >>about it and some bugs have been made on the tutor list: >> >>http://mail.python.org/pipermail/tutor/2001-August/subject.html >> >>Look for the subject line containing "algebraic". > >OK. Please feel free to add to this discussion that I don't use >Python much any more, and am looking for someone to take over >maintenance of Pythonica (including fixing those known bugs). It looks like you had made some significant progress on Python and provided some useful tools (I am using the patched editor, for example). Thank you. Do you have a list of errors that have been reported for Pythonica? I passed along your comments to the tutor and mac lists. /c

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help with web programming
by Daniel Coughlin Sept. 1, 2001

Sept. 1, 2001

Hello Pythoneers, I am writing a script which grabs a webpage and then returns a list of a certain type of link. The each link is then appended to my main url to collect the associated pages. It works fine for the first 10 or so links and then it breaks. (The list of valid links has about 85 items in it.) Here is the script: import urllib import re sUrl = 'http://mydomain.com/' sCmd = 'cmd' sUrlcmd = sUrl+sCmd lCmds = [] tupU = urllib.urlretrieve(sUrlcmd) #get main page fTmp = open(tupU[0]) #open source file for main page sTmp = fTmp.read() lTmpHrefs = re.findall(r'href="(.*?)"', sTmp) #filter source for hrefs for item in lTmpHrefs: if item[0:3] == sCmd: lCmds.append(item) #make list of special hrefs for cmd in lCmds: tupTmp = urllib.urlretrieve(sUrl+cmd) #retrieve source of special links print tupTmp[0] #print location of source files ----------------------------------------------------- Here is the result: C:\DOCUME~1\DANIEL~1.SEA\LOCALS~1\Temp\~1204-21 C:\DOCUME~1\DANIEL~1.SEA\LOCALS~1\Temp\~1204-22 C:\DOCUME~1\DANIEL~1.SEA\LOCALS~1\Temp\~1204-24 C:\DOCUME~1\DANIEL~1.SEA\LOCALS~1\Temp\~1204-25 C:\DOCUME~1\DANIEL~1.SEA\LOCALS~1\Temp\~1204-26 C:\DOCUME~1\DANIEL~1.SEA\LOCALS~1\Temp\~1204-27 C:\DOCUME~1\DANIEL~1.SEA\LOCALS~1\Temp\~1204-28 C:\DOCUME~1\DANIEL~1.SEA\LOCALS~1\Temp\~1204-29 C:\DOCUME~1\DANIEL~1.SEA\LOCALS~1\Temp\~1204-30 C:\DOCUME~1\DANIEL~1.SEA\LOCALS~1\Temp\~1204-31 C:\DOCUME~1\DANIEL~1.SEA\LOCALS~1\Temp\~1204-32 C:\DOCUME~1\DANIEL~1.SEA\LOCALS~1\Temp\~1204-33 Traceback (most recent call last): File "C:\Python21\Pythonwin\pywin\framework\scriptutils.py", line 301, in RunScript exec codeObject in __main__.__dict__ File "C:\daniel\test.py", line 28, in ? File "C:\Python21\lib\urllib.py", line 78, in urlretrieve return _urlopener.retrieve(url, filename, reporthook, data) File "C:\Python21\lib\urllib.py", line 208, in retrieve fp = self.open(url, data) File "C:\Python21\lib\urllib.py", line 176, in open return getattr(self, name)(url) File "C:\Python21\lib\urllib.py", line 290, in open_http errcode, errmsg, headers = h.getreply() File "C:\Python21\lib\httplib.py", line 705, in getreply response = self._conn.getresponse() File "C:\Python21\lib\httplib.py", line 559, in getresponse response.begin() File "C:\Python21\lib\httplib.py", line 117, in begin line = self.fp.readline() File "C:\Python21\lib\socket.py", line 233, in readline new = self._sock.recv(self._rbufsize) IOError: [Errno socket error] (10054, 'Connection reset by peer') ------ Can anyone out there help me interprit this error? Any help at all will be appreciated! Thanks, Daniel

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[OT? -URGENT] how to tell a tcl/tk prog abt the installed tcl/tk8 .3 in python2.0 on windowsNT ?
by GADGIL PRASAD /INFRA/INFOTECH Aug. 31, 2001

Aug. 31, 2001

hi, Need to get a visual regex builder working... it's written tcl/tk. It's a single 50k tcl prog file. I need to pass it to 'wish'. There is no wish or any other interpreter exe in tcl or tk subdirectory of python 2.0 install on windows. what should I do? do I need to download and install the entire tcl ? /prasad . -- "This e-mail message may contain confidential, proprietary or legally privileged information. It should not be used by anyone who is not the original intended recipient. If you have erroneously received this message, please delete it immediately and notify the sender. The recipient acknowledges that ICICI or its subsidiaries and associated companies (including ICICI Bank) "ICICI Group", are unable to exercise control or ensure or guarantee the integrity of/over the contents of the information contained in e-mail transmissions and further acknowledges that any views expressed in this message are those of the individual sender and no binding nature of the message shall be implied or assumed unless the sender does so expressly with due authority of ICICI Group. Before opening any attachments please check them for viruses and defects."

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Re: [Tutor] Apache (was MySQL) for Windows
by Sheila King Aug. 31, 2001

Aug. 31, 2001

u> In-Reply-To: <20010831131041.B10781(a)harmony.cs.rit.edu> X-Mailer: Forte Agent 1.8/32.548 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <7337DE4933(a)kserver.org> On Fri, 31 Aug 2001 13:10:41 -0400, dman <dsh8290(a)rit.edu> wrote about Re: [Tutor] Apache (was MySQL) for Windows: :FWIW Apache is also available for windows. I had set it up once :(win98) but didn't do much with it. I think it may require cygwin, :but I'm not sure (it can be run from inetd if you do have cygwin :though). Apache for windows does not require cygwin. I have it set up on my Win98 machine (I use it for testing my website before I FTP it over to my web host--especially the cgi scripts). It comes with the usual windows installer and everything is pretty easy. -- Sheila King http://www.thinkspot.net/sheila/ http://www.k12groups.org/

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RE: [Tutor] MySQL for Windows
by Schmidt, Allen J. Aug. 31, 2001

Aug. 31, 2001

A great PC based tool I found for MySQL is called mysqlfront. Wonderful! ...and free! And if you use the MyODBC part also, another very handy ODBC-anything tool is called AQT - Advanced Query Tool. It costs a few bucks but WELL worth it. The combo of the two tools makes working with MySQL a pleasure. MySQL plays very nicely with Zope too. $.02 Allen -----Original Message----- From: Kirby Urner [mailto:urnerk@qwest.net] Sent: Friday, August 31, 2001 12:52 PM To: tutor(a)python.org Subject: [Tutor] MySQL for Windows >If you want to learn SQL, get a Linux sytem and try >out PostgreSQL or MySQL. (I don't think they are availble for >Windows, but they are Free). Note: MySQL *is* available for Windows, including 95/98/Me (i.e. not just NT). I have MySQL on my Windows box and have successfully used in with Python. Windows 95/98/Me users might also want to check out Savant as a personal web server (free), for playing around with Python cgi etc. (I don't recommend serving on the open internet with these insecure OSes). I find Savant cleaner and easier the PWS 4.0 (personal web server), which 95/98/Me users can extract from one of the NT service packs (see MSFT website) for free (and IIS costs of course). PWS has some install glitches in ME especially. SQL by itself doesn't require Python of course and many MSFT/Windows products use it in some way, often a variant or dialect. Kirby _______________________________________________ Tutor maillist - Tutor(a)python.org http://mail.python.org/mailman/listinfo/tutor

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Thank you for all your help.
by epoch7 Aug. 31, 2001

Aug. 31, 2001

I thought it would be nice of me to post my program that all of you helped me write. Maybe you won't have to write one now! I'm a big believer in doing something right once, so other don't have to :) I added comments in it for all the other newbies out there like me :) ---------------------------- ###################### # URL Smasher # # by # # Will Olbrys # # completed 8/29/2001 # #This program eats up #urls out of html source(or anywhere #for that matter and spits them #back out with a specific port #attached if you want. ###################### import re import string import os file1 = raw_input("Name of file to convert: ") file2 = raw_input("Name of file to output to: ") in_file = open(file1, "r") out_file = open(file2, "w") temp_file = open("temp", "w") file_text = in_file.read() regex = re.compile('url=(.*)&') #This line tells how to find the url. in this case, in between 'url=' and &' matches = regex.findall(file_text) temp_file.write(string.join(matches,"\n")) in_file.close() temp_file.close() temp_file = open("temp", "r") file_text = temp_file.read() out_file.write(string.replace(file_text,'com','com:8045')) #the previous lineadds a port to it, if you dont want to add a port then change com:8045 to com #or whatever depending on how the name address ends. temp_file.close() out_file.close() os.remove("temp")

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Fwd: Re: [Tutor] Why I'm learning Python (OT and long)
by curtis horn Aug. 31, 2001

Aug. 31, 2001

Ooops sent this to author and not list: >2 things helped me allot in the beginning: > >http://www.amazon.com/exec/obidos/ASIN/0201709384/qid%3D999222727/102-24761… > >and: > >http://www.amazon.com/exec/obidos/ASIN/0672318539/qid=999222803/sr=2-1/102-… > >Once I "got" object oriented programming I reread Alan's book then started >over with all the rest (about 5 also) and felt I understood MUCH >better. Don't know if this is a common sticking point, but understanding >what OO is really about helped me tremendously. Now I'm looking for a >cheap laptop so I can practice coding wherever I am :) > > >..................Curtis > > > >At 10:27 AM 8/30/01 -0400, you wrote: >>I spent some time reading Useless Python last night and went to bed >>totally depressed. I feel that even Useless is above my skill level. So, >>what follows is the story of why I'm trying to learn Python. Perhaps some >>will understand; some may be in a similar situation; some may want to send >>me money. Maybe it can become an installment for the soapbox on Useless. >> >>====================================================== >> >>So here I sit, pretending that I know a little something about >>Python. I own 5 Python books; I have been attempting to program in Python >>for over a year; my title is something like "systems analyst"; I have a >>wife, many children and a dog. Allow me to explain how this >>all happened... >> >>I never pretended to be a programmer. I was trained to do public health >>research. But, the tight job market of recent years forced me to take on >>various computer tasks in the course of my research. It started with >>WordPerfect. I was something of a WordPerfect wonder kid. I could somehow >>do anything in WordPerfect. Looking back, I guess this was my first >>programming - WordPerfect macros. I just grokked other macros and read the >>help files. Massively complicated mail merges, text manipulation, complex >>and tedious tasks rendered trivial in the wake of my macros. I began to >>build solutions for the secretaries, co-workers, people on the street. >>Then M$ began pushing that third-rate wannabe word processor of theirs and >>nothing was ever the same. >> >>So, I sorta learned MS Access the same way. Of course I knew Access was >>just a desktop database. But it was fine around the office. I wrote a few >>simple applications, and that was fine; after all, I'm a researcher not a >>programmer. But guess what? People started coming to be with requests for >>Access applications. And before I knew it, I was writing a very complex >>accounting system for my employer. I was being labeled, and I knew it. I >>tried to resist but it was futile. I thought long and hard about going >>back to school for a PhD in epidemiology; I was trying to escape becoming >>a programmer. All the while there were bills to pay and groceries to buy >>and mouths to feed. I didn't have time go back to school. I couldn't afford >>it. And then one day I was offered a real job as a programmer... >> >>Some folks in the private research world had decided to build a large >>system in Access. I was doing some part time work for this company because >>as a university employee, I couldn't make ends meet. They knew me as a >>WordPerfect and Access guy, and asked me to join the project full time. I >>was flattered but declined; after all, I'm a researcher not a >>programmer. I told them repeatedly "I'm not a programmer". But they >>were desperate. I knew they were desperate. I was the only person >>they could find. And even though the university didn't pay very >>well, I still loved my job there. So one day they asked, "What >>would it take?". Have you ever been asked that question? I was 29 >>years old and driving a worn out car I paid 450 dollars for. Three >>kids. Working a full time job and a part time job. So, I told them >>what it would take and they said ok. Of course my wife was >>happy. This meant financial freedom. Perhaps we could have a >>normal life. But I was afraid. The day would come when they would >>learn the truth and I would be thrown out like the pitiful code I >>write. >> >>Well, it's been nearly four years and I haven't been thrown out yet. I was >>assigned the title systems analyst by the people who were in charge of >>making up the business cards. I guess I've fooled them so far. But I >>haven't fooled myself. Sure I can get by in Access/VB. But I know >>Access is kid stuff compared to Oracle and MySQL. I want to write >>solutions for non-MS platforms; I want to understand the difference between >>bound and unbound methods; I want to understand other people's code; I >>want to be Danny Yoo!!! >> >>So that's why I'm trying to learn Python. To bring legitimacy to an >>otherwise illegitimate career. >> >>Some of my Python scripts seem ok. They do useful work on a daily basis. >>And yet, even a blind squirrel finds a nut sometimes. I'm plagued by the >>feeling that I am a blind squirrel. >> >>Thanks folks. This has been therapeutic. Python people are the best and >>this list is fantastic. Today I'm going to make one of my useful scripts >>run from a Tk button widget. And I'll stumble through. Perhaps I'll get >>lucky and find a nut. >> >>Bill >> >> >>_______________________________________________ >>Tutor maillist - Tutor(a)python.org >>http://mail.python.org/mailman/listinfo/tutor

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Help with cgi
by Charlie Clark Aug. 31, 2001

Aug. 31, 2001

Dear all, is there a quick and easy way to deal with *all* the name/value pairs in a form? Charlie

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