New Python website

[Maurice LING]

lpe wrote:

> http://www.pycode.com
> 
> I was kinda suprised when I could not find any good sites with 3rd
> party modules (other than the Vaults of Parnassus, where you must host
> files elsewhere), so I decided to write one myself :)
> It is brand new and might still be buggy, but hopefully it will be
> usefull to some people.  Feel free to join and upload any of your code.
> thanks
> 

Hi,

Just yesterday, I was frustrated waiting for replies from Catelog-SIG 
about the possibilities of a package management system that works like 
Fink (fink.sf.net). Basically, the problems I see is that C extension 
modules aren't portable across major Python revisions and there is no 
easy way to maintain the installed packages in site-packages directory. 
My scenario is that a system admin has to maintain 50 different 
libraries and their dependencies...

So I've decided to write something myself... and call it 'centipyde'.

Modelled against Fink and Darwinports (darwinports.opendarwin.org) 
(obviously I'm a Mac user), information (in text file) are in a folder 
(centipyde/pkginfo/) as .info files. Each package will have a .info file 
which tells the system (centipyde) where to download the source tar (or 
zip) and how to install the package, as well as the dependecies, 
maintaining the installed packages etc etc. No difference from other 
package managers (a goal)...

It is still very rough at this moment, so please bear with me. 
Basically, the user will have to cvs checkout the system and just run it.

I've checked it into Sourceforge, under IB-DWB project (which is 
abandoned) as 'centipyde'. But for some reason, I still can't view it in 
  ViewCVS yet. Anyway, the directory layout is

../centipyde
../centipyde/centipyde.py
../centipyde/pgkinfo
../centipyde/pgkinfo/ply15.info


ply15.info contains the following text (pretty much modelled against Fink):

package=ply15
maintainer=.
dependencies=.
downloadurl=http://systems.cs.uchicago.edu/ply/ply-1.5.tar.gz
prebuildscript=tar zxvf ply-1.5.tar.gz
sourcedir=ply-1.5
buildscript=python setup.py build
installscript=sudo python setup.py install


centipyde.py is the following:
=====================================================

"""
Author: Maurice H.T. Ling <mauriceling at acm.org>
Copyright (c) 2005 Maurice H.T. Ling
Date created : 28th April 2005
"""

PKGINFOPATH = 'pkginfo'
INSTALL_LOG = 'install.log'

import os
import string
import sys

def install_package(package_name):
     f = open(os.getcwd() + os.sep + PKGINFOPATH + os.sep + package_name 
+ '.info', 'r')
     install_info = {}
     for line in f.readlines():
         line = string.split(line, '=')
         if line[1][-1] == os.linesep:
             install_info[line[0]] = string.strip(line[1][:-1])
         else: install_info[line[0]] = string.strip(line[1])
     f.close()
     print "Package Installation Information: " + str(install_info)

     os.system('curl -O ' + str(install_info['downloadurl']))

     preinstall = []
     preinstall = string.split(install_info['prebuildscript'], ';')
     for cmd in preinstall: os.system(cmd)

     cwd = os.getcwd()
     print cwd
     os.chdir(os.path.join(os.getcwd(), install_info['sourcedir']))
     print os.getcwd()

     buildscript = []
     buildscript = string.split(install_info['buildscript'], ';')
     for cmd in buildscript: os.system(cmd)

     installscript = []
     installscript = string.split(install_info['installscript'], ';')
     for cmd in installscript: os.system(cmd)


if sys.argv[1] == 'install':
     install_package(sys.argv[2])

=====================================================

When I run "python centipyde.py install ply15", PLY1.5 gets downloaded 
from David Beazley's website, uncompressed and installed into the 
site-package as shown here:


znichols-maurice:~/MyProjects/ib-dwb/centipyde mauriceling$ ls -alltotal 8
drwxr-xr-x   5 mauricel  mauricel   170 28 Apr 17:37 .
drwxr-xr-x  10 mauricel  mauricel   340 28 Apr 16:21 ..
drwxr-xr-x   5 mauricel  mauricel   170 28 Apr 17:33 CVS
-rw-r--r--   1 mauricel  mauricel  1385 28 Apr 23:47 centipyde.py
drwxr-xr-x   4 mauricel  mauricel   136 28 Apr 17:36 pkginfo
znichols-maurice:~/MyProjects/ib-dwb/centipyde mauriceling$ sudo python 
centipyde.py install ply15
Package Installation Information: {'maintainer': '.', 'sourcedir': 
'ply-1.5', 'package': 'ply15', 'downloadurl': 
'http://systems.cs.uchicago.edu/ply/ply-1.5.tar.gz', 'installscript': 
'sudo python setup.py install', 'dependencies': '.', 'buildscript': 
'python setup.py build', 'prebuildscript': 'tar zxvf ply-1.5.tar.gz'}
   % Total    % Received % Xferd  Average Speed          Time 
   Curr.
                                  Dload  Upload Total    Current  Left 
   Speed
100 69278  100 69278    0     0   7746      0  0:00:08  0:00:08  0:00:00 
31811
ply-1.5/
ply-1.5/doc/
ply-1.5/doc/ply.html
ply-1.5/CHANGES
ply-1.5/COPYING

..... [snipped] .....

ply-1.5/test/yacc_uprec.exp
ply-1.5/test/yacc_uprec.py
/sw/lib/python2.3/distutils/dist.py:213: UserWarning: 'licence' 
distribution option is deprecated; use 'license'
   warnings.warn(msg)
running build
running build_py
creating build
creating build/lib
copying lex.py -> build/lib
copying yacc.py -> build/lib
/sw/lib/python2.3/distutils/dist.py:213: UserWarning: 'licence' 
distribution option is deprecated; use 'license'
   warnings.warn(msg)
running install
running build
running build_py
running install_lib
znichols-maurice:~/MyProjects/ib-dwb/centipyde mauriceling$
================================

I think there are some obvious ways that we might work together...

Cheers
Maurice