[AstroPy] Practical Python for Astronomers web tutorial
Dr. Juan E Cabanela Ph.D.
cabanela at mnstate.edu
Thu May 26 09:40:29 EDT 2011
On May 26, 2011, at 2:20 AM, Frederic Grollier wrote:
> On Wed, May 25, 2011 at 02:29:09PM -0500, Dr. Juan E Cabanela Ph.D. wrote:
>>
>> t5 = atpy.Table(raw,type='ascii', fill_values=fill_values)
>>
>> fails for me. In fact, there appears to be no way to get atpy.Table to fill
>> values automatically as it triggers an error
>>
>> TypeError: read() got an unexpected keyword argument 'fill_values'
>>
>> I hope this can be fixed and if someone can tell me how to use fill_values
>> within ATpy that would be appreciated.
>
> This code snippet works for me here, using ATpy.0.9.5.1 and
> asciitable.0.5.2. In the case of type='asciitable', the read() method
> delegates most of its work to asciitable, and so 'fill_values' should
> be a feature of this module. As far as I can tell, the 'fill_values'
> parameter was introduced in version 0.4.0 of asciitable, can you check
> your version info for this ?
I am running ATpy 0.9.5.1 and asciitable 0.5.2 as well, running on Python 2.7.1 -- EPD 7.0-2 (64-bit) on MacOS 10.6.7.
In my script test.py I do the following:
===========================================================================
import numpy
import pylab
import atpy
filler = [('null',numpy.nan),('null',-999,'cntr_u','nb','na','ext_flg','w1nm','w1m','w2nm','w2m','w3nm','w3m','w4nm','w4m','tmass_key')]
data = atpy.Table('wise_matches.tbl',fill_values=filler)
===========================================================================
and that last line triggers the following error (with traceback):
Traceback (most recent call last):
File "test.py", line 14, in <module>
data = atpy.Table('wise_matches.tbl',fill_values=filler)
File "/Users/juan/Library/Python/2.7/lib/python/site-packages/ATpy-0.9.5.1-py2.7.egg/atpy/basetable.py", line 167, in __init__
self.read(*args, **kwargs)
File "/Users/juan/Library/Python/2.7/lib/python/site-packages/ATpy-0.9.5.1-py2.7.egg/atpy/basetable.py", line 213, in read
atpy._readers[table_type](self, *args, **kwargs)
TypeError: read() got an unexpected keyword argument 'fill_values'
And so I have the same modules, but a different result.
Juan
--
Dr. Juan Cabanela 218-477-2453 (V) 218-477-2290 (F)
Minnesota State University Moorhead WWW: http://www.cabanela.com/
Dept. of Physics and Astronomy Twitter: Juan_Kinda_Guy
1104 Seventh Ave South, Hagen 307B IM: AstroJuanCab (AIM)
Moorhead, MN 56563 cabanela at mnstate.edu (MSN)
juancab at gmail.com (GTalk)
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