[AstroPy] Help with WindowsError: [Error 8]

[Zachary Robinson]

Perry,

The FITS file is 3.66MB. The dimensions of the table are 892800Rx4C

Zach

Sent from my iPhone

> On Mar 11, 2014, at 1:09 PM, Perry Greenfield <stsci.perry at gmail.com> wrote:
> 
> How big is the table?
> 
> It's quite possible you are running into a 32-bit limitation, particularly if the table is 2GB or bigger.
> 
> Perry
> 
> 
>> On Mar 11, 2014, at 2:06 PM, Zachary Robinson wrote:
>> 
>> Hello,
>> 
>> I'm currently a graduate student working on a project for my adviser. The data we are using has always been in CSV format and we have a bunch of python programs using these CSV formatted files.  However, a small portion of the oldest data we have is in FITS formatted files.  I've been put in charge of extracting the data from these FITS files and putting them into CSV files so we can use our programs we wrote. I read online that astropy has the ability to do this so I've downloaded it and have started to learn it using the documentation center. 
>> 
>> However, I have experienced an issue while trying to learn the basics commands of the table data portion of FITS file handling.  My code so far is (infil is the location of the FITS files on my computer):
>> 
>> HDUlist = fits.open(infil)
>> HDUlist.info()
>> tbdata = HDUlist[1].data
>> print(tbdata[1])
>> 
>> When I try to run the program, I get this error message:
>> 
>> Traceback (most recent call last):
>>  File "C:\Documents and Settings\zach\Desktop\Dropbox\Probabilistic SPE Model\GOES\Python Programs\Astropy and FIT Files Tutorial\Reading FITS Files.py", line 52, in <module>
>>    tbdata = HDUlist[1].data
>>  File "C:\Program Files\Python27\lib\site-packages\astropy\utils\misc.py", line 279, in __get__
>>    val = self._fget(obj)
>>  File "C:\Program Files\Python27\lib\site-packages\astropy\io\fits\hdu\table.py", line 285, in data
>>    data = self._get_tbdata()
>>  File "C:\Program Files\Python27\lib\site-packages\astropy\io\fits\hdu\table.py", line 93, in _get_tbdata
>>    self._data_offset)
>>  File "C:\Program Files\Python27\lib\site-packages\astropy\io\fits\hdu\base.py", line 509, in _get_raw_data
>>    return self._file.readarray(offset=offset, dtype=code, shape=shape)
>>  File "C:\Program Files\Python27\lib\site-packages\astropy\io\fits\file.py", line 257, in readarray
>>    shape=shape).view(np.ndarray)
>>  File "C:\Program Files\Python27\lib\site-packages\numpy\core\memmap.py", line 237, in __new__
>>    mm = mmap.mmap(fid.fileno(), bytes, access=acc, offset=start)
>> WindowsError: [Error 8] Not enough storage is available to process this command
>> 
>> Can anyone explain to me what this error is and how I can go about fixing it? From what I've read online so far, I'm thinking it has something to do with the mmap but I don't know what that is.
>> 
>> I'm running this code in Python 2.7 on a 32-bit WinXP machine.
>> 
>> Thanks a lot for the help,
>> Zach
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>