python-indexed-gzip - fast random access of gzip files in Python

Property Value
Distribution Debian 10 (Buster)
Repository Debian Main amd64
Package filename python-indexed-gzip_0.8.6-1+b1_amd64.deb
Package name python-indexed-gzip
Package version 0.8.6
Package release 1+b1
Package architecture amd64
Package type deb
Category python
License -
Maintainer NeuroDebian Team <>
Download size 326.88 KB
Installed size 1.12 MB
Drop-in replacement `IndexedGzipFile` for the built-in Python `gzip.GzipFile`
class that does not need to start decompressing from the beginning of the
file when for every `seek()`. It gets around this performance limitation by
building an index, which contains *seek points*, mappings between
corresponding locations in the compressed and uncompressed data streams. Each
seek point is accompanied by a chunk (32KB) of uncompressed data which is
used to initialise the decompression algorithm, allowing to start reading
from any seek point. If the index is built with a seek point spacing of 1MB,
only 512KB (on average) of data have to be decompressed to read from any
location in the file.
This package provides the Python 2 module.


Package Version Architecture Repository
python-indexed-gzip_0.8.6-1~nd100+1_amd64.deb 0.8.6 amd64 NeuroDebian Main
python-indexed-gzip_0.8.6-1~nd100+1_i386.deb 0.8.6 i386 NeuroDebian Main
python-indexed-gzip_0.8.6-1+b1_i386.deb 0.8.6 i386 Debian Main
python-indexed-gzip - - -


Name Value
cython -
libc6 >= 2.14
python << 2.8
python >= 2.7~
python-numpy >= 1:1.14.3
python-numpy-abi9 -
python:any >= 2.7.5-5~
python:any << 2.8
zlib1g >= 1:


Name Value
python2.7-indexed-gzip -


Type URL
Binary Package python-indexed-gzip_0.8.6-1+b1_amd64.deb
Source Package indexed-gzip

Install Howto

  1. Update the package index:
    # sudo apt-get update
  2. Install python-indexed-gzip deb package:
    # sudo apt-get install python-indexed-gzip




2018-06-27 - Yaroslav Halchenko <>
indexed-gzip (0.8.6-1) unstable; urgency=medium
* Fresh upstream version, dropping CPed patches
2018-06-26 - Yaroslav Halchenko <>
indexed-gzip (0.8.5-2) unstable; urgency=medium
* debian/patches/0001-BF-Workaround-issue-with-contextlib-older-cython.patch
for compatibility with older cython
* debian/patches/control
- added  Restrictions: allow-stderr  to allow stderr output in the tests.
Kudos to Paul Gevers for the detailed bug report!  (Closes: #901764)
2018-06-18 - Yaroslav Halchenko <>
indexed-gzip (0.8.5-1) unstable; urgency=medium
* New upstream release
* debian/control
- Added Vcs fields pointing to github fork/repository
* debian/patches/deb_nocov_tests
- disabled coverage during tests, no need and this way lightens up
2017-10-21 - Michael Hanke <>
indexed-gzip (0.6.1-1) unstable; urgency=medium
* New upstream release (missed several intermediate ones).
* Switch from seemingly fragile pybuild-directed test invocation
to directly running the tests via distutils.
* Call dh_numpy to get correct ABI dependency.
2017-04-05 - Michael Hanke <>
indexed-gzip (0.3.1-1) unstable; urgency=low
* Initial release (Closes: #835493).

See Also

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