[issue19053] read1() from zipfile returns empty data

2013-09-30 Thread Jesús Cea Avión 

Changes by Jesús Cea Avión j...@jcea.es:


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nosy: +jcea

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[issue19053] read1() from zipfile returns empty data

2013-09-27 Thread Roundup Robot 

Roundup Robot added the comment:

New changeset 460b0ccbab7f by Serhiy Storchaka in branch '3.3':
Issue #19053: ZipExtFile.read1() with non-zero argument no more returns empty
http://hg.python.org/cpython/rev/460b0ccbab7f

New changeset f1c6e7f86bbc by Serhiy Storchaka in branch 'default':
Issue #19053: ZipExtFile.read1() with non-zero argument no more returns empty
http://hg.python.org/cpython/rev/f1c6e7f86bbc

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nosy: +python-dev

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[issue19053] read1() from zipfile returns empty data

2013-09-27 Thread Serhiy Storchaka 

Changes by Serhiy Storchaka storch...@gmail.com:


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resolution:  - fixed
stage: patch review - committed/rejected
status: open - closed

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[issue19053] read1() from zipfile returns empty data

2013-09-19 Thread Serhiy Storchaka 

New submission from Serhiy Storchaka:

Bzip2 is block-based compression with large (up to 800 Kb) size of block. It 
means that while decompressor not read enough data it can't produce any output 
(actually this issue exists for other compression algorithms too, but less 
frequent). And the read1() method which makes only one low-level read can 
return empty bytes when there is still data available. This issue was fixed for 
gzip, bz2, and lzma modules in issue15546, but left in the zipfile module. In 
zipfile this bug less catastrophic because other read functions do not use 
read1() directly, but use lower level internal function.

--
assignee: serhiy.storchaka
components: Library (Lib)
messages: 198085
nosy: serhiy.storchaka
priority: normal
severity: normal
stage: needs patch
status: open
title: read1() from zipfile returns empty data
type: behavior
versions: Python 3.3, Python 3.4

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[issue19053] read1() from zipfile returns empty data

2013-09-19 Thread Serhiy Storchaka 

Changes by Serhiy Storchaka storch...@gmail.com:


--
stage: needs patch - patch review

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[issue19053] read1() from zipfile returns empty data

2013-09-19 Thread Serhiy Storchaka 

Serhiy Storchaka added the comment:

Here is a patch.

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keywords: +patch
Added file: http://bugs.python.org/file31819/zipfile_read1.patch

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