Aquileo | Recent changes to feature-requests

Aquileo | Passing file objects to idlsave.read

2010-09-09T11:41:41Z

Currently, it is possible to read files saved to disk but not file-like objects (like StringIO) with idlsave.read. A nice addition would be to have two parameters to specify the SAV file: "file_name" and "file_obj" (see the gzip.GzipFile constructor in the standard Python library for an example).

It would be nice to have such a feature, as I often have to read gzipped SAV files downloaded from a FTP server: I can download and decompress them only using StringIO objects, but then I must save the result in a temporary file before calling idlsave.read.

I am attaching here a possible patch which implements what I described. There should be no change required for existing code. The following snippet illustrates the new feature:

import idlsave
from gzip import GzipFile

d = idlsave.read (file_obj = GzipFile ('foo.sav.gz'))

Aquileo | Support for 32-bit complex

2010-09-02T14:52:56Z

Just got this message so I guess I need it.

Exception: 32-bit complex type not implemented

Thanks.

Aquileo | Support for IDL pointers

2009-11-28T23:42:43Z

It would be great if the next release supported reading save files with pointers in them. The example I am trying is a save file with a coyote library linked list of structures saved in it (http://www.dfanning.com/programs/linkedlist__define.pro)

The error given is:
In [7]: s=idlsave.read('thd_2008101000000-2008201000000_vpp.sav')
---------------------------------------------------------------------------
KeyError Traceback (most recent call last)

/Users/balarsen/Desktop/<ipython console> in <module>()

/Library/Frameworks/Python.framework/Versions/5.1.1/lib/python2.5/site-packages/IDLSave-0.9.2-py2.5.egg/idlsave/idlsave.pyc in read(filename, verbose)
589
590 def read(filename, verbose=True):
591 s = IDLSaveFile(filename)
--> 592 s.parse(verbose=verbose)
593 return s

/Library/Frameworks/Python.framework/Versions/5.1.1/lib/python2.5/site-packages/IDLSave-0.9.2-py2.5.egg/idlsave/idlsave.pyc in parse(self, verbose)
537 rectypes = []
538 while True:
--> 539 r = Record().read(f)
540 self.records.append(r)
541 rectypes.append(r.rectype)

/Library/Frameworks/Python.framework/Versions/5.1.1/lib/python2.5/site-packages/IDLSave-0.9.2-py2.5.egg/idlsave/idlsave.pyc in read(self, f)
340
341 raise Exception("RECTYPE=%s not implemented" % \ --> 342 rectype_dict[self.rectype])
343
344 f.seek(self.nextrec)

KeyError: 'HEAP_DATA'