kai zhu <[EMAIL PROTECTED]> added the comment: import/reload now works. accomplished by adding 5 lines in parse_source_module (import.c) to 1st check for the hook __builtins__.parse_source_module_py3k. the hook will automatically compile in py3k format if it finds the magic comment: "# import as py3k\n"
* below is a working python 3.0 script integrated w/ numpy. also added: pep3102 Keyword-Only Arguments pep3112 Bytes literals in Python 3000 download: http://www-rcf.usc.edu/~kaizhu/work/py3to2/current/ patched files: ceval.c (unchanged from last) bltinmodule.c (unchanged from last) import.c (added 5 continuous lines to parse_source_module) there r 7 unimplemented pep's remaining: any suggested solutions? pep3107 Function Annotations (easy, just haven't gotten around yet) pep3109/3110 Exceptions in Python 3000 (hard?) pep3120 Using UTF-8 as the default source encoding pep3123 Making PyObject_HEAD conform to C (hard/who cares for 2.x?) pep3131 Supporting Non-ASCII Identifiers (looks emulable) pep3138 String representation in Python 3000 @ any rate, i think its feature complete enough to b useful in certain areas (for me its scientific computing). ################################################################################ """ numpy_py3k.py this is a py3to2 demo showing a python3.0 script being run under python 2.5 & utilizing numpy, a python2.5 extension module. add the magic comment '# import as py3k\n' to import / reload a script in py3k format interactive usage: >>> import py3to2 >>> import numpy_py3k >>> reload(numpy_py3k) commandline usage: python -c 'import py3to2; import numpy_py3k' """ # import as py3k import numpy print('pep3102 Keyword-Only Arguments') # nth order polynomial fit of multiple y data def polyfits(nth, x, *ys, rcond = None, full = False): return [numpy.polyfit(x, y, nth, rcond, full) for y in ys] fits = polyfits(2, # 2nd order fit numpy.arange(16), # x data numpy.random.rand(16), numpy.random.rand(16), # multiple y data rcond = numpy.MachAr().eps, # precision full = False, # return only coeffs ) print('fits', fits); print('#'*64) print('pep3112 Bytes literals in Python 3000') x = bytes( numpy.arange(256, dtype = numpy.int8).tostring() ) print('bytes', x); print('#'*64) print('pep3114 Renaming iterator.next() to .__next__()') x = (x for x in numpy.arange(16)) print('x.__next__()', x.__next__(), x.__next__(), x.__next__()); print('#'*64) print('pep3132 Extended Iterable Unpacking') a,b,*c = numpy.random.rand(4) print('a = %s, b = %s, c = %s'%(a,b,c)); print('#'*64) ################################################################################ ---------- assignee: -> collinwinter components: +2to3 (2.x to 3.0 conversion tool), Demos and Tools, Interpreter Core, Tests -None _______________________________________ Python tracker <[EMAIL PROTECTED]> <http://bugs.python.org/issue3238> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
