[Numpy-tickets] [NumPy] #342: Inconsistent behavior of string array constructors

NumPy numpy-tickets at scipy.net
Fri Oct 13 00:48:55 CDT 2006

#342: Inconsistent behavior of string array constructors
 Reporter:  gkoczyk  |       Owner:  somebody
     Type:  defect   |      Status:  new     
 Priority:  normal   |   Milestone:          
Component:  Other    |     Version:  devel   
 Severity:  normal   |    Keywords:          
 If a single string is given as one of the columns of an n x m array, it
 seems to be silently used to construct the remainder of entries along the
 same dimension.

 >>> numpy.array([ ['X'], ['X', 'X', 'X'] ], '|S1')
 array([['X', 'X', 'X'],
        ['X', 'X', 'X']],

 If more strings are supplied, but still not enough to match dimension
 length, ValueError is raised correctly.

 >>> numpy.array([ ['X', 'X'], ['X', 'X', 'X'] ], '|S1')
 Traceback (most recent call last):
   File "<stdin>", line 1, in ?
 ValueError: setting an array element with a sequence

Ticket URL: <http://projects.scipy.org/scipy/numpy/ticket/342>
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