I like 1) as well. However someone needs to test the fixes on ancient RH python.
Matt From the phone On Jul 13, 2009, at 1:15 PM, Lisandro Dalcin <dalcinl at gmail.com> wrote: > Fedora 11 moved to Python 2.6. Now many Python stdlib modules are > deprecated (as part of the transition to Python 3.x series). > > /u/dalcinl/Devel/PETSc/petsc-dev/config/BuildSystem/config/ > compilers.py:7: > DeprecationWarning: the sets module is deprecated > import sets > /u/dalcinl/Devel/PETSc/petsc-dev/config/PETSc/package.py:7: > DeprecationWarning: the md5 module is deprecated; use hashlib instead > import md5 > /u/dalcinl/Devel/PETSc/petsc-dev/config/BuildSystem/script.py:101: > DeprecationWarning: The popen2 module is deprecated. Use the > subprocess module. > import popen2 > > We could take two approaches to remove these warnings (I bet all you > hate warnings as much as me): > > 1) Reimplement things using the modern API's, perhaps by using > conditional code depending on the Python version and/or using import > with try/except blocks. In particular, this will require: > a) use the builtin 'set' type (available since Python 2.4) > b) use the 'hashlib' module (available since Python 2.5) > c) moving from using 'peopen2' to 'subprocess' (BTW, available since > Python2.4) will likely remove the need to use 'select', which I > commented some time ago it is not supported (for pipes) in native > Windows Python (yes, some day I'll have some working code with the > native Windows Python). > > 2) Silent these warnings. I do not think these modules will be ever > removed from 2.x series, and porting the whole BuildSystem beast to > Python 3.0 is not going to be a 10-minutes task anyway. > > > I personally prefer (1) and volunteer to provide the fixes, even if > that is more work than (2). I would like to know your opinions before > start to work on this. > > > -- > Lisandro Dalc?n > --------------- > Centro Internacional de M?todos Computacionales en Ingenier?a (CIME > C) > Instituto de Desarrollo Tecnol?gico para la Industria Qu?mica (INTE > C) > Consejo Nacional de Investigaciones Cient?ficas y T?cnicas (CONICET) > PTLC - G?emes 3450, (3000) Santa Fe, Argentina > Tel/Fax: +54-(0)342-451.1594