[NeXus-code-tickets] [NeXusCode] #156: python: support '|S1' for string data

[NeXus Data Format Library and Applications]

#156: python: support '|S1' for string data
------------------------------+---------------------------------------------
 Reporter:  Cpascual          |       Owner:  Unassigned
     Type:  defect            |      Status:  new       
 Priority:  minor             |   Milestone:            
Component:  bindings          |     Version:  4.2rc2    
 Keywords:  numpy dtype char  |  
------------------------------+---------------------------------------------
 It would be nice if '|S1' was accepted as a synonym of 'char' when passing
 dtype to napi functions.
 See attached patch to 4.2rc2 napi.py

 Rationale:
 Currently one can use numpy.dtype objects wherever a napi function
 requires dtype **except** for the case of string data.
 This is because the numpy-->nexus data type conversion is done through
 {{{
 _nxtype_code[str(type)]
 }}}

 In the case of numpy 1-character arrays, str(dtype) returns '|S1', so at
 least this case can be covered pretty easily by using the proposed patch.

 Note that this only works for numpy 1-character arrays, not for python
 strings. But at least one can convert to an array using:
 {{{
 numpy.array(tuple(string))
 }}}

-- 
Ticket URL: <http://trac.nexusformat.org/code/ticket/156>
NeXus Data Format Library and Applications <http://www.nexusformat.org/>
NeXus Data Format Library and Applications