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Issue3488

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classification
Title:Provide compress/uncompress functions on the gzip module
Type:enhancementStage:resolved
Components:Library (Lib)Versions:Python 3.2
process
Status:closedResolution:fixed
Dependencies:Superseder:
Assigned To:Nosy List: BreamoreBoy, gregory.p.smith, jcea, pitrou, pythonhacker
Priority:normalKeywords:patch

Created on2008-08-01 17:56 bypythonhacker, last changed2022-04-11 14:56 byadmin. This issue is nowclosed.

Files
File nameUploadedDescriptionEdit
test_gzip_svn_diff.patchpythonhacker,2008-08-04 04:29
gzip.py.svndiffpythonhacker,2009-11-07 17:41
gzip.rst.svndiffpythonhacker,2009-11-07 17:41
Messages (16)
msg70578 -(view)Author: Anand B Pillai (pythonhacker)*Date: 2008-08-01 17:56
Python has great in-built support for all sorts of text compressionincluding bzip, gzip, tarfile and other general purpose modules likezlib etc.Of these, I have a gripe with gzip - it does not provide a simpleway of compressing/uncompressing a string like the other modulesto (namely bzip, zlib) at the module level.It is relatively easy to perform gzip de-compression using theGzipFile class and StringIO objects, but compression is notthat straight-forward.It would be great for the gzip module to have "compress"and "uncompress" functions at the module level without havingto go through GzipFile every-time.I think being able to send gzip compressed strings directly would beuseful for applications which require to send gzip data over the wirewithout having to write to files and read-back.
msg70594 -(view)Author: Anand B Pillai (pythonhacker)*Date: 2008-08-01 21:23
Uploading a file containing two functions which can be used to providecompress/uncompress on gzip.This is not a patch to gzip.py, but a stand-alone file. It this looksfine, I will make a patch.
msg70646 -(view)Author: Antoine Pitrou (pitrou)*(Python committer)Date: 2008-08-02 23:14
I think the functionality is useful, although it may be too late to makeit into 2.6/3.0. Some comments:- the functions should have docstrings- there should be unit tests- style nit: named parameters in function calls (and default values infunction declarations) shouldn't have spaces around the '=' sign
msg70650 -(view)Author: Anand B Pillai (pythonhacker)*Date: 2008-08-03 06:08
Thanks. The file I uploaded was not an actual patch but just how thefunctions would appear in the gzip module, to illustrate the code.I can make an actual patch to gzip.py with docstrings, unit-tests andtaking care of your other comments. Do you think this will be in timefor Python 3.0 ? I can do this right away.
msg70657 -(view)Author: Anand B Pillai (pythonhacker)*Date: 2008-08-03 19:21
I have uploaded the actual patch file which can be applied against thegzip.py module. I did not modify the _test() function since it iswritten for testing file compression. I can modify test_gzip.py if thispatch is accepted.
msg70684 -(view)Author: Anand B Pillai (pythonhacker)*Date: 2008-08-04 04:10
Uploading the svn diff.
msg70686 -(view)Author: Anand B Pillai (pythonhacker)*Date: 2008-08-04 04:29
Added test case in test_gzip.py. Attaching svn diff of the same.
msg94382 -(view)Author: Anand B Pillai (pythonhacker)*Date: 2009-10-23 12:51
Can we include this for the next release ?
msg94432 -(view)Author: Gregory P. Smith (gregory.p.smith)*(Python committer)Date: 2009-10-24 18:21
Seems simple enough, I don't see why not.
msg94683 -(view)Author: Antoine Pitrou (pitrou)*(Python committer)Date: 2009-10-29 19:47
The patch lacks a documentation update, though.(seeDoc/library/gzip.rst)
msg94693 -(view)Author: Anand B Pillai (pythonhacker)*Date: 2009-10-30 03:59
Ok, I will add this.
msg95020 -(view)Author: Anand B Pillai (pythonhacker)*Date: 2009-11-07 17:41
Uploading fresh gzip.py SVN diff with a minor change, i.e accepting aregular string as argument, aka zlib.compress.
msg95021 -(view)Author: Anand B Pillai (pythonhacker)*Date: 2009-11-07 17:41
Uploading rst documentation svn diff for module.
msg110680 -(view)Author: Mark Lawrence (BreamoreBoy)*Date: 2010-07-18 20:13
This appears to have slipped under the radar,msg94432 seems to sum it up.  Could someone please take this forward.
msg114170 -(view)Author: Antoine Pitrou (pitrou)*(Python committer)Date: 2010-08-17 21:13
Modified patch committed inr84155 (py3k). Thanks for your contribution!
msg117797 -(view)Author: Anand B Pillai (pythonhacker)*Date: 2010-10-01 13:23
Okay. Verified as working. Thank you!
History
DateUserActionArgs
2022-04-11 14:56:37adminsetgithub: 47738
2010-10-01 13:23:52pythonhackersetmessages: +msg117797
2010-08-17 21:13:39pitrousetstatus: open -> closed
resolution: fixed
messages: +msg114170

stage: patch review -> resolved
2010-07-18 20:13:06BreamoreBoysetnosy: +BreamoreBoy
messages: +msg110680
2009-11-07 17:41:43pythonhackersetfiles: +gzip.rst.svndiff

messages: +msg95021
2009-11-07 17:41:04pythonhackersetfiles: +gzip.py.svndiff

messages: +msg95020
2009-11-07 17:39:18pythonhackersetfiles: -gzip_svn_diff.patch
2009-11-07 17:39:13pythonhackersetfiles: -gzip.patch
2009-11-07 17:39:06pythonhackersetfiles: -gzip_patch.py
2009-10-30 03:59:01pythonhackersetmessages: +msg94693
2009-10-29 19:47:16pitrousetmessages: +msg94683
2009-10-24 18:21:31gregory.p.smithsetnosy: +gregory.p.smith
messages: +msg94432
2009-10-23 12:57:01pitrousetpriority: normal
stage: patch review
versions: + Python 3.2, - Python 3.0
2009-10-23 12:51:52pythonhackersetmessages: +msg94382
2008-08-14 04:25:55jceasetnosy: +jcea
2008-08-04 04:29:58pythonhackersetfiles: +test_gzip_svn_diff.patch
messages: +msg70686
2008-08-04 04:10:17pythonhackersetfiles: +gzip_svn_diff.patch
messages: +msg70684
2008-08-03 19:21:38pythonhackersetfiles: +gzip.patch
keywords: +patch
messages: +msg70657
2008-08-03 06:08:02pythonhackersetmessages: +msg70650
2008-08-02 23:14:25pitrousetnosy: +pitrou
messages: +msg70646
2008-08-01 21:23:40pythonhackersetfiles: +gzip_patch.py
messages: +msg70594
2008-08-01 17:56:55pythonhackercreate
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