🌐 Mailman 3 April 2000 - Python-list - python.org

Namespace Problem with global declaration in module
by spex66＠my-deja.com April 28, 2000

April 28, 2000

Hi, it seemed very simple but don't worked like expected: #FILE: test.py dd = None #INIT a shadow instance for automated access class zz: #ONLY one class will be instantiated def __init__(self): self.name = 'hallo' global dd dd = self #END OF FILE >>> from test import * >>> yy = zz() >>> dd.name ... AttributeError ... ++++++++++++++ the same code interactive at the python console works perfect! >>> ...same as above... >>> dd.name 'hallo' any hints? in use: 1.5.2 / idle0.5 thanks Peter (=PA=) Sent via Deja.com http://www.deja.com/ Before you buy.

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struct, xdrlib and array examples?
by Shaun April 28, 2000

April 28, 2000

where would i find examples of the struct, xdrlib and array modules in action? ===================== Shaun Hogan Interactive Enterprise Ltd. alt. E-mail : shaun_hogan(a)yahoo.com +353 86 8342529

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Re: file open() problem
by Richard Chamberlain April 28, 2000

April 28, 2000

Just to let you know that I'm running win98se and it works fine. Richard <ekw1(a)my-deja.com> wrote in message news:8ebcm3$lo$1@nnrp1.deja.com... > I am using python1.5.2 on windows98se. all of the following gives me > an error. > > f = open('file.txt', 'r') > f = open("file.txt", "r") > f = open('c:/dir/file.txt', 'r') > f = open('c:\dir\file.txt', 'r') > f = open("c:/dir/file.txt", "r") > f = open("c:\dir\file.txt", "r") > f = open("c:\\dir\\file.txt", "r") > > The error from the python shell for any of the above is: > > Traceback (innermost last): > File "<pyshell#17>", line 1, in ? > f = open('file.txt', 'r') > TypeError: illegal argument type for built-in operation > > Can anyone help me? Thanks. > > ekw > > > > > Sent via Deja.com http://www.deja.com/ > Before you buy.

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memory leak debugging in C modules
by clee＠thalamus.wustl.edu April 28, 2000

April 28, 2000

I'm looking for advice on fixing memory leaks in a python C module. How do the C modules gurus out there do it? Thanks in advance for any help, -chris lee P.S. What I've done so far: - working on a linux machine primarily - using gcc with -g flag - debugging with gdb python <testscript.py> - I've done some preliminary experiments with linking my module with a utility called electric fence, and I've tried running my module under the gnome memory checker, memprof. Both of these options show some promise but clearly give problematic results. (I won't go into all the problems---I suspect the cause of many of them may be that my python interpreter is compiled with the --with-threads options. I'm going to recompile python next.) Sent via Deja.com http://www.deja.com/ Before you buy.

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How to use DCOracle and LOBs in Oracle 8i ????
by Andreas Jung April 28, 2000

April 28, 2000

After reading old postings concerning DCOracle and LOBs I can not solve the following problem: I have a table under Oracle 8i with a NCLOB field. The base character set for the complete database it UTF8. My first problem with DCOracle was an ORA-12704 character set mismatch error when I tried to insert an instance of DCOracle.dbi.dbiRaw() in to the database. My current code looks like this (the table contains the NCLOB field 'content'): lob = 'very long text .....' raw = DCOracle.dbi.dbiRaw(lob) com = 'insert into tab (docnum,content) values(:x,translate(:y using nchar_cs))' curs.execute(com,x='1234',y=raw) This works for LOBs with less than 4000 bytes. For longer LOBs I get the following error message: ORA-01461 can bind a LONG value only for insert into a LONG column. Now...how can I store larger LOBs with more than 4000 bytes ? I have read something about a dbms_lob package but I have really no idea how to use it. Has anyone a working solution or a code example ?! Thanks a lot for any hint, Andreas

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Simple list.append() question
by Matthew Hirsch April 28, 2000

April 28, 2000

Hi All, I have this: >>> entire_list=[[]]*3 >>> entire_list [[], [], []] >>> entire_list[0].append(1.23) >>> entire_list [[1.23], [1.23], [1.23]] I only want to append 1.23 to entire_list[0]. Why did it also append it to entire_list[1] and entire_list[2]? Thanks for your help, Matt

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Running shell programs from Python
by seh＠ffi.no April 28, 2000

April 28, 2000

I have just started with Python and have some questions.. I have some compiled c programs that I normally run from the shell. I can use | to pipe the output from one as input to the next. I would like to call the programs from Python. Could someone please indicate how this is done? Any references? Regards Svein-Erik Hamran

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CFV: comp.lang.ruby
by Dave Cornejo April 28, 2000

April 28, 2000

FIRST CALL FOR VOTES (of 2) unmoderated group comp.lang.ruby Newsgroups line: comp.lang.ruby The Ruby dynamic OO programming language. Votes must be received by 23:59:59 UTC, 20 Apr 2000. This vote is being conducted by a neutral third party. Questions about the proposed group should be directed to the proponent. Proponent: Conrad Schneiker <schneiker(a)jump.net> Votetaker: Dave Cornejo <dave(a)dogwood.com> RATIONALE: comp.lang.ruby Ruby is a very-high-level, dynamic object oriented programming language. Ruby provides many of the best-liked power and convenience features of Perl and Python on one hand, with an elegantly simple and powerful syntax that was partly inspired by Eiffel and Ada on the other hand. Ruby is a more thoroughly objected oriented language than Python, and some Ruby features were inspired by Smalltalk. Ruby is an open source language. There are over 1000 members of 4 Japanese Ruby mail lists (general, developers, math, extension writers), with a peak volume topping 100 messages per day. At present, there is one English Ruby mail list with about 175 members, with a recent volume often exceeding 10 messages per day and growing. Many users of the Japanese Ruby mail lists have some understanding of English and are also prospective comp.lang.ruby users as well. Much of 1999's newsgroup discussion of Ruby took place on comp.lang.python, which is not optimal, since comp.lang.python is dedicated to the Python language. For obvious reasons, Ruby users do not post there frequently. In 2000, most Ruby discussion has occurred in comp.lang.misc. This again is not ideal since other comp.lang.misc regulars are typically more interested in issues that transcend Ruby, and have said as much. In Japan, Ruby has overtaken Python in terms of popular usage. During 1999 and into early 2000, Ruby has been featured in several articles in the English language software trade press, indicating it is at the takeoff threshold that Perl and Python attained years ago. (Please see http://www-4.ibm.com/software/developer/library/ruby.html for the latest example.) The English language Ruby home page is http://www.ruby-lang.org/en/, which provides links to documentation and download pages for Ruby. CHARTER: comp.lang.ruby The comp.lang.ruby newsgroup is devoted to discussions of the Ruby programming language and related issues. Examples of relevant postings include, but are not be limited to, the following subjects: - Bug reports - Announcements of software written with Ruby - Examples of Ruby code - Suggestions for Ruby developers - Requests for help from new Ruby programmers The newsgroup is not moderated. Binaries are prohibited (except the small PGP type). Advertising is prohibited (except for announcements of new Ruby-related products). END CHARTER. HOW TO VOTE: Follow these instructions *exactly*! Votes are counted by computer. You should send E-MAIL (posts to a newsgroup are invalid) to: vote(a)dogwood.com Please do not assume that just replying to this message will work. Check the address before you mail your vote. Your mail message should contain one and only one of the following vote statements: I vote YES on comp.lang.ruby I vote NO on comp.lang.ruby Voter name: If your mail software does not indicate your real name (for example, AOL does not), include _exactly_ the statement above on a _separate_ line and add your name after the colon. Having your name in your signature line is NOT enough! Do NOT join the lines together or remove the words "Voter name"! You may also vote ABSTAIN (which records an empty vote) or CANCEL (which removes any earlier votes). ABSTAIN does not affect the final vote count in any way but is listed, whereas CANCEL is not. IMPORTANT VOTING PROCEDURE NOTES: Standard Guidelines for voting apply. One vote per person, one account per voter. Votes must be mailed directly from the voter to the votetaker. Anonymous, forwarded or proxy votes are not valid. Votes mailed by WWW/HTML/CGI forms are considered to be anonymous votes. Votes from non-existent email addresses are not valid. Vote counting is automated. Failure to follow these directions may mean that your vote does not get counted. If you do not receive an acknowledgment of your vote within three days contact the votetaker about the problem. It's your responsibility to make sure your vote is registered correctly. Duplicate votes are resolved in favor of the most recent valid vote. Addresses, names and votes of all voters will be published in the final voting results post. The purpose of a Usenet vote is to determine the genuine interest of persons who would read a proposed newsgroup. Soliciting votes from disinterested parties defeats this purpose. Please do not distribute this CFV. If you must, direct people to the official CFV as posted to news.announce.newgroups. Distributing pre-marked or otherwise edited copies of this CFV is generally considered to be vote fraud. When in doubt, ask the votetaker. -- Voting question & problems: Dave Cornejo <dave(a)dogwood.com> Voting address: vote(a)dogwood.com

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soaplib???
by tiddlerdeja＠my-deja.com April 28, 2000

April 28, 2000

Is anyone working on a soaplib? Just wondering. Sent via Deja.com http://www.deja.com/ Before you buy.

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Another question
by Jeff Massung April 28, 2000

April 28, 2000

Okay, another quick question. If it is quicker to do: import random from random import randint for i in range(1,1000000): print randint(1,10) than this: import random for i in range(1,1000000): print random.randint(1,10) Why would I not do "from <module> import *" with every module I load? Jeff

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