Cannot store Sequences in Numeric arrays of Objects
Stuart I Reynolds
S.I.Reynolds at cs.bham.ac.uk
Tue Jun 1 17:42:38 EDT 1999
Hi,
I don't seem to be able to store a whole range of different type in
Numeric's PyObject arrays:
>>> from Numeric import *
>>> a = array( [None,]*9 , PyObject)
>>> b = array( [None,]*9 , PyObject)
>>> a.shape = 3,3
>>> a
array([[None , None , None ],
[None , None , None ],
[None , None , None ]],'O')
>>> #Storing ints works fine
>>> a[0,0] = 123
>>> a
array([[123 , None , None ],
[None , None , None ],
[None , None , None ]],'O')
>>>#Cannot store an array
>>> a[0,0] = b
Traceback (innermost last):
File "<stdin>", line 1, in ?
ValueError: array too large for destination
In fact, trying to store any sequence causes the error:
a[0,0] = []
a[0,0] = (None, None)
a[0,0] = UserList()
... whereas storing these works fine:
a[0,0] = Pickler(file)
a[0,0] = 'hello' #Also a sequence?
What's going on?
Cheers,
Stuart
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