Hi,
using sage-2.10.1 on a Debian Etch system,
look at the following short file called "example.sage":
class BMV:
def __init__(self):
self.l = range(5)
def write(self):
save(self, 'foo')
M = BMV()
it works as expected:
sage: load "example.sage"
sage: M.write()
sage: M = 0
sage: M = load('foo')
sage: M.l
[0, 1, 2, 3, 4]
but including the line
M.write()
into the script "example.sage":
class BMV:
def __init__(self):
self.l = range(5)
def write(self):
save(self, 'foo')
M = BMV()
M.write()
yields:
sage: load "example.sage"
---------------------------------------------------------------------------
<class 'cPickle.PicklingError'> Traceback (most recent call
last)
/home/georg/.sage/temp/HILBERT/7199/
_home_georg_Daten_Sync_Software_Experimente_sage_save_example_sage_43.py
in <module>()
10
11 M = BMV()
---> 12 M.write() 13
14
/home/georg/.sage/temp/HILBERT/7199/
_home_georg_Daten_Sync_Software_Experimente_sage_save_example_sage_43.py
in write(self)
7
8 def write(self):
----> 9 save(self, 'foo')
10
11 M = BMV()
/home/georg/Daten/Sync/Software/Experimente/sage/save/sage_object.pyx
in sage.structure.sage_object.save()
482
483
--> 484
485
486
<class 'cPickle.PicklingError'>: Can't pickle __main__.BMV: attribute
lookup __main__.BMV failed
WARNING: Failure executing file: </home/georg/.sage/temp/HILBERT/7199/
_home_georg_Daten_Sync_Software_Experimente_sage_save_example_sage_43.py>
Is this a bug or why does it not work?
Thanks for help,
Georg
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