Hi Vince That's terrific! Once a string is compressed with gzip.zlib does it make a difference whether it is stored it in a TEXT or BLOB column?
Dinesh From: vince spicer Sent: Wednesday, June 24, 2009 10:49 AM To: Dinesh B Vadhia Cc: tutor@python.org Subject: Re: [Tutor] string pickling and sqlite blob'ing Pickle is more for storing complex objects (arrays, dict, etc). pickling a string makes it bigger. I have stored large text chunks in text and/or blob columns compressed with gzip.zlib.compress and extracted with gzip.zlib.decompress Comparison: import cPickle as Pickle import gzip x = "asdfasdfasdfasdfasdfasdfasdfasdfasdf" print len(x) >> 36 print len(Pickle.dumps(x)) >> 44 print len(gzip.zlib.compress(x)) >> 14 Vince On Wed, Jun 24, 2009 at 11:17 AM, Dinesh B Vadhia <dineshbvad...@hotmail.com> wrote: I want to pickle (very long) strings and save them in a sqlite db. The plan is to use pickle dumps() to turn a string into a pickle object and store it in sqlite. After reading the string back from the sqlite db, use pickle loads() to turn back into original string. - Is this a good approach for storing very long strings? - Are the pickle'd strings stored in the sqlite db as a STRING or BLOB? Cheers. Dinesh _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
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