On Thu, Mar 3, 2011 at 2:12 PM, luisfe <lftab...@yahoo.es> wrote: > The difference is with sage.all > > $ sage -ipython > Python 2.6.4 (r264:75706, Jan 15 2011, 11:46:28) > Type "copyright", "credits" or "license" for more information. > > IPython 0.9.1 -- An enhanced Interactive Python. > ? -> Introduction and overview of IPython's features. > %quickref -> Quick reference. > help -> Python's own help system. > object? -> Details about 'object'. ?object also works, ?? prints > more. > > In [1]: import sage.all > > In [2]: dir(sage.rings.integer) > Out[2]: ['CoercionException', 'GCD_list', 'Integer', 'IntegerWrapper', > 'LCM_list', 'MAX_UNSIGNED_LONG', 'ONE', '__builtins__', '__doc__', > '__file__', '__name__', '__package__', '_test_mpz_set_longlong', > 'arith', 'bin_op', 'canonical_coercion', 'clear_mpz_globals', 'doc', > 'free_integer_pool', 'gmp_randrange', 'init_mpz_globals', > 'initialized', 'int_to_Z', 'integer_ring', 'is_Integer', 'long_to_Z', > 'make_integer', 'mpz_t_offset_python', 'operator', 'parent', 'sage', > 'sys', 'the_integer_ring'] > > > > > Without importing sage.all > > > > $ sage -ipython > Python 2.6.4 (r264:75706, Jan 15 2011, 11:46:28) > Type "copyright", "credits" or "license" for more information. > > IPython 0.9.1 -- An enhanced Interactive Python. > ? -> Introduction and overview of IPython's features. > %quickref -> Quick reference. > help -> Python's own help system. > object? -> Details about 'object'. ?object also works, ?? prints > more. > > In [1]: from sage.rings.integer_ring import > IntegerRing clear_mpz_globals factor > init_mpz_globals > IntegerRing_class crt_basis gmp_randrange > is_IntegerRing > > In [1]: from sage.rings.integer_ring import ZZ > --------------------------------------------------------------------------- > ImportError Traceback (most recent call > last) > > /home/rosamari/sage/<ipython console> in <module>() > > ImportError: cannot import name ZZ > > > > I need to do/import something before, I can import ZZ defined in > sage.rings.integer_ring?
All bets are off when you import things in the wrong order--in particular, circular imports may be getting in the way here. There's probably some C-level initialization as well. - Robert -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
