genetic algorithms package for python ?

2006-08-31 Thread Xiao Jianfeng
Hi all, I am looking for a genetic algorithms package for Python. I have googled the web before posting and found some links. The link of pygene(http://www.freenet.org.nz/python/pygene) cannot be opened. I also tried the recipe on ASPN, but it is too simple for my application, and the ga mode

Re: How can I do this with python ?

2006-05-08 Thread Xiao Jianfeng
Tim N. van der Leeuw wrote: > Your question is insufficiently clear for me to answer. > > Do you want to know how to read from standard-input in a Python > program? > > Do you want to know how to start an external program from Python, and > then connect something to that programs standard input? >

How can I do this with python ?

2006-05-07 Thread Xiao Jianfeng
Dear all, In a shell script, I can run a command which need interactive input like this, #!/bin/sh A_Command<<-EOF a b c EOF But, how can I do this with python ? Thanks in advance. -- http://mail.python.org/mailman/listinfo/python-list

The difference between "import package.module" and "from package import module"(about pymol)

2005-12-15 Thread Xiao Jianfeng
Hello, In pymol I can use "from chempy import Atom" but "import chempy.Atom" doesn't work. It says,"ImportError: No module named Atom". What is going wrong ? Thanks -- http://mail.python.org/mailman/listinfo/python-list

Has this problem been fiexed ?

2005-11-27 Thread Xiao Jianfeng
Hello, I'm trying to build python2.4.2 on IRIX6.5(cc version MIPSpro Compilers: Version 7.3.1.3m). But the socket module failed to compile. I found this in ./Modules/socketmodule.c, line 193: /* XXX Using _SGIAPI is the wrong thing, 194 but

python2.4.2 test_fpformat and test_locale failed on IRIX6.5

2005-11-23 Thread Xiao Jianfeng
Hello, I am trying to install python2.4.2 on IRIX6.5, but test_fpformat and test_locale failed when I ran "smake test". The following is the detailed error message: prompt:\> ./python ./Lib/t

How to install python2.4.2 on IRIX6.5 ?

2005-11-20 Thread Xiao Jianfeng
Hello, I am trying to install python2.4.2 on a SGI origin3200 machine running IRIX6.5. The native c compiler was used to compile python. "./configure --prefix=/my/path/to/install" runs ok, then, "smake OPT= " runs ok but "smake test" gets errors, here is the output: --

Re: what happens when the file begin read is too big for all lines to be read with "readlines()"

2005-11-20 Thread Xiao Jianfeng
[EMAIL PROTECTED] wrote: >Xiao Jianfeng wrote: > > >> I have compared the two methods, >> (1). "for x in fh:" >> (2). read all the file into memory firstly. >> >> I have tested the two methods on two files, one is 80M and the second >&g

Re: what happens when the file begin read is too big for all lines to be read with "readlines()"

2005-11-20 Thread Xiao Jianfeng
[EMAIL PROTECTED] wrote: >Xiao Jianfeng wrote: > > >> First, I must say thanks to all of you. And I'm really sorry that I >>didn't >> describe my problem clearly. >> >> There are many tokens in the file, every time I find a token, I have &

Re: what happens when the file begin read is too big for all lines to be read with "readlines()"

2005-11-20 Thread Xiao Jianfeng
Steve Holden wrote: >Xiao Jianfeng wrote: > > >>Steven D'Aprano wrote: >> >> >> >> >>>On Sun, 20 Nov 2005 11:05:53 +0800, Xiao Jianfeng wrote: >>> >>> >>> >>> >>> >>> &g

Re: what happens when the file begin read is too big for all lines to be read with "readlines()"

2005-11-19 Thread Xiao Jianfeng
Steven D'Aprano wrote: >On Sun, 20 Nov 2005 11:05:53 +0800, Xiao Jianfeng wrote: > > > >> I have some other questions: >> >> when "fh" will be closed? >> >> > >When all references to the file are no longer in scope: > >

Re: what happens when the file begin read is too big for all lines to be read with "readlines()"

2005-11-19 Thread Xiao Jianfeng
[EMAIL PROTECTED] wrote: >newer python should use "for x in fh:", according to the doc : > >fh = open("your file") >for x in fh: print x > >which would only read one line at a time. > > > I have some other questions: when "fh" will be closed? And what shoud I do if I want to explicitly clos

Re: install python2.4 on FreeBSD and keep using python2.3

2005-11-17 Thread Xiao Jianfeng
Andrew MacIntyre wrote: >[posted & mailed] >Ksenia Marasanova wrote: > > > >>I have python2.3, installed from port /lang/python long time ago. The >>current version is 2.4, but I'd rather have two python versions, >>instead of upgrading. >>Is there maybe a way to somehow link installed python to

Re: Hot to split string literals that will across two or more lines ?

2005-11-17 Thread Xiao Jianfeng
Lars Kellogg-Stedman wrote: >>print "a string whcih is very very looo\ >>ng." >> >> > >print "a string which is very loo" \ > + "ong." > >-- Lars > > > Oh, Thank you! -- http://mail.python.org/mailman/listinfo/python-list

Re: Hot to split string literals that will across two or more lines ?

2005-11-17 Thread Xiao Jianfeng
[EMAIL PROTECTED] wrote: >Xiao Jianfeng wrote: > > >>Hi, >> >>I need to print a long sting, which is two long so it must expand two >>lines. >>I know that we can use backslash(\) to explicitly join two lines into a >>logical line, >>but th

Hot to split string literals that will across two or more lines ?

2005-11-17 Thread Xiao Jianfeng
Hi, I need to print a long sting, which is two long so it must expand two lines. I know that we can use backslash(\) to explicitly join two lines into a logical line, but this doesn't work for string literals :( my code:

Re: Proposal: add sys to __builtins__

2005-09-04 Thread Xiao Jianfeng
Paul Watson wrote: >This sounds pretty interesting. How about a switch to invoke this >handling for the one-liner crowd and those who wish to use it? > > > >Somehow, I never heard any C programmers suggest that the default >processing not include the need for: > >#include > > I think it

Are there free molecular libraries written in python ?

2005-09-01 Thread Xiao Jianfeng
Hi, Are there any free libraries for the analysis and manipulation of molecular structural models, implemented in the Python programming language ? Thanks. -- http://mail.python.org/mailman/listinfo/python-list