🌐 Mailman 3 September 2004 - Tutor - python.org

Output to a printer
by Bob Fleming Dec. 29, 2004

Dec. 29, 2004

I am learning Python on a Windows system (Win95). All of the tutorials, documentation, and a book that I am studying all assume printing to the console (stdout). I live in the real world and will need to print out to my laser printer or other device. How do I modify the print or write statements, or redirect stdout, to print to a printer? Thank you, Bob Fleming robertf(a)eskimo.com

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visual development environs?
by Thomas Clive Richards Oct. 14, 2004

Oct. 14, 2004

Hi all, I'm looking for a visual development environment (I'm not sure this si the right term) similar to blackadder (http://www.thekompany.com/products/blackadder/). I've seen Boa Constructor, but IMHO it needs a bit more polishing before it's totally usable. I'm not using this for myself, but rather for a friend I've just managed to convince to start learning python; for this reason, additional documentation (tutorials, guides et al) are a huge bonus. Can anyone recommend a good solution? Thanks, -- Thomi Richards, thomi(a)once.net.nz

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List intersect
by Asif Iqbal Oct. 5, 2004

Oct. 5, 2004

Hi All I never wrote a python script. I am looking for a script that I can use to generate a uniq list out of five lists. These lists are bunch of usernames. So one list might look like this list1: usera auser userb buser list2: userc cuser userd duser usera Generated list: usera auser userb buser userc cuser userd duser Thanks for any help -- Asif Iqbal PGP Key: 0xE62693C5 KeyServer: pgp.mit.edu "...it said: Install Windows XP or better...so I installed Solaris..."

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Re: Files and such
by Prospero Oct. 2, 2004

Oct. 2, 2004

Greetings! Still hoping someone can give me an answer on this. (Problem repeated below.) It seems such an obvious thing but neither the online information I have seen nor the one book I own on Python seem to address it. I need to save some numbers in a text file. This bit I can do no problem but then I need a different part of the program to read these numbers one set at a time, starting at the beginning and stopping at the end. For preference the file should be plain text so that I can amend it by hand if necessary. Any clues about how to do this would be much appreciated. The numbers are in groups of six, all single- or double-digit integers. The file would be added to one group at a time. The image I have in mind is of each group occupying one line, separated either by commas or spaces, but this does not matter as long as the format is clear enough to allow human editing. All the best, Prospero.

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python by cgi
by nik Oct. 1, 2004

Oct. 1, 2004

hi all, I'm trying to access my firebird database using python and cgi. I've installed the latest apache web server (on linux), and using a simple script like; #!/usr/local/bin/python def main(): print "Content-type: text/html" print print "<TITLE> Hello, World!</TITLE>" if (__name__ == "__main__"): main() is working just fine. However, if I add an import kinterbasdb at the start, I get an import error. Using the command line interpreter I don't have a problem though. I'm a bit confused by the sys.path a bit, it seems to vary depending on how I start python; in command line iterpreter, it's; '', '/usr/lib/python23.zip', '/usr/lib/python2.3', '/usr/lib/python2.3/plat-linux2', '/usr/lib/python2.3/lib-tk', '/usr/lib/python2.3/lib-dynload', '/usr/lib/python2.3/site-packages', '/usr/lib/python2.3/site-packages/Numeric', '/usr/lib/python2.3/site-packages/gtk-2.0' by cgi it's; '/usr/local/apache2/cgi-bin', '/usr/local/lib/python23.zip', '/usr/local/lib/python2.3', '/usr/local/lib/python2.3/plat-linux2', '/usr/local/lib/python2.3/lib-tk', '/usr/local/lib/python2.3/lib-dynload', '/usr/local/lib/python2.3/site-packages' however, the difference doesn't seem to imply why kinterbasdb can't be imported. I tried doing import sys sys.path.append('/usr/lib/python2.3/site-packages/kinterbasdb') in the script, but it didn't help. Any ideas? Is it a permissions thing perhaps? nik

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invoking system commands from python
by Fulvio Copex Oct. 1, 2004

Oct. 1, 2004

Hello, i'm new to this list and to python too. I'm using active state python 2.3 on win32, my problem is the following: I want learn how to execute system command passing parameters. for example to copy a file I've tried to write this script: ***************************** import os os.chdir(''myDirectory") cmd="copy" parameters="file1 file1_backup" myCmd = os.popen(cmd,'w') myCmd.write(parameters) exitCode = myCmd.close() if exitCode: print '%s failed, this probably says why:\n%s' % (cmd, myCmd) ****************************** the problem is that it doesn't work (the file file1_backup is not created) and it writes the following line: copy failed, this probably says why: <closed file 'copy', mode 'w' at 0x01177660> have tou any idea? thanks, cop --------------------------------- Scopri Mister Yahoo! - il fantatorneo sul calcio di Yahoo! Sport'

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Is there a prettier way to do this?
by Douglas N. Shawhan Oct. 1, 2004

Oct. 1, 2004

I am trying to sort through a list of items, find items that contain the same string fragments and report yea or nay The way I am doing it below (setting a value of 1 and multiplying it by 0 if any of the iterations come up negative) seems to be the easiest for my skull, but I have found over and over that there is usually a more pythonic way of doing things, no matter what I come up with! :-) -------------------------snip------------------------------- import string DB = {"hi":"one, two", "ho":"two, three", "he":"three, one"} search_str='three, one' search_list=string.split(search_str, ",") items = DB.keys() items.sort() search_group=[] for each in items: search_group.append(DB[each]) for each in search_group: count = 1 for item in search_list: if string.find(each, item) == -1: count = count * 0 else: count = count * 1 if count == 0: print 'not found' else: print each

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comp.lang.python
by Ms Soo Chong Sept. 30, 2004

Sept. 30, 2004

Hi, How can I post questions to comp.lang.python? What is the email add for that? Is there an archive of the newsgroup? Sorry, I can't find the information for the above. Thank you for any help. Cheers, Shufen

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anagram solving algorithm
by Max Russell Sept. 30, 2004

Sept. 30, 2004

Hello here is a breakdown of an algorithm I'm using to write my own anagram solver: Prompt for location of dictionary file. take input letters from user. (error check that they are in range A..Z) read total number of input letters (x) read dictionary file for words that contain same number letters (y), as input letters (x) into (array 1) sort input letters & test against words in (array1) print output. My problem is at the sorting bit: what I am thinking of doing is looking first of all for all words in the wordlist of the same length, then eliminating those that do not start with one of the lestters contained within the anagram-word. Next I'd need to look at the second position in my worldlist word; if it is not a letter in my anagram word, then eliminate it, if it is in the anagram-word continue to the next position an check it, until the end position of the anagram word. My problem here is that it how to structure looking at each possibe word in the list: how to set up the loop for that, also how to do the sort/inspection of each word. I'm really only starting out with Python so any help would be appreciated. I've included what I have so far: #!/usr/bin/python import os, sys whichlist = "" whichlist = raw_input("Path to desired wordlist: "\n) file = open(whichlist, "r") wordlist = file.readlines() file.close() ana = "" ana = raw_input("Please enter anagram:") analength = len(ana) ___________________________________________________________ALL-NEW Yahoo! Messenger - all new features - even more fun! http://uk.messenger.yahoo.com

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Please ignore the previous mail on "comp.lang.python"
by Ms Soo Chong Sept. 30, 2004

Sept. 30, 2004

Hi all, Sorry for that, I found the answer. Please ignore my previous msg. Thank you. Shufen

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