Skip to main content

A fast, CFFI-based SkipDict implementation for Python.

SkipDict instances are Skip List-based associative arrays (‘dictionaries’ in Python terms), mapping 64-bit signed integers to arbitrary Python objects. Keys are always stored and returned in order, while maintaining average-case O(log n) search, insert and delete times, and average-case space consumption of O(n).

This libary uses Peter Cannici’s public-domain skiplist.h C library, adapting it slightly for use with Python and CFFI.

Installation

Installation on most systems should be pretty easy:

$ pip install cskipdict

Usage

You can use it just like a normal dict, except that all keys should be integers between -2:sup:63 and +263 - 1 inclusive.

>>> from cskipdict import SkipDict
>>> d = SkipDict()
>>> d
SkipDict({})
>>> len(d)
0
>>> d[123] = 'abc'
>>> d
SkipDict({123: 'abc'})
>>> d[420] = 'def'
>>> d
SkipDict({123: 'abc', 420: 'def'})
>>> d[69] = 'foo'
>>> d
SkipDict({69: 'foo', 123: 'abc', 420: 'def'})

Iteration will always happen in ascending order of the keys:

>>> for k, v in d.iteritems():
...     print((k, v))
(69, 'foo')
(123, 'abc')
(420, 'def')

Unlicense

This is free and unencumbered software released into the public domain.

Anyone is free to copy, modify, publish, use, compile, sell, or distribute this software, either in source code form or as a compiled binary, for any purpose, commercial or non-commercial, and by any means.

In jurisdictions that recognize copyright laws, the author or authors of this software dedicate any and all copyright interest in the software to the public domain. We make this dedication for the benefit of the public at large and to the detriment of our heirs and successors. We intend this dedication to be an overt act of relinquishment in perpetuity of all present and future rights to this software under copyright law.

THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

For more information, please refer to http://unlicense.org/

Metadata

Release files for cskipdict 0.0.4

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for cskipdict 0.0.4
File Size Uploaded Provenance Actions
cskipdict-0.0.4.tar.gz 39.3 kB Without provenance Details for cskipdict-0.0.4.tar.gz

Built distributions (wheels)

Table of built distributions (wheels) for cskipdict 0.0.4
File Interpreter ABI Platform Actions
cskipdict-0.0.4-cp36-cp36m-macosx_10_13_x86_64.whl CPython 3.6 CPython 3.6 pymalloc macOS 10.13+ x86-64 Details for cskipdict-0.0.4-cp36-cp36m-macosx_10_13_x86_64.whl
cskipdict-0.0.4-cp27-cp27m-macosx_10_13_x86_64.whl CPython 2.7 CPython 2.7 pymalloc macOS 10.13+ x86-64 Details for cskipdict-0.0.4-cp27-cp27m-macosx_10_13_x86_64.whl

Total release size: 68.9 kB

Release files / cskipdict-0.0.4.tar.gz

Download URL cskipdict-0.0.4.tar.gz
Size 39.3 kB
Tags Source
SHA-256 checksum
How to use checksums
240d4af0a27fa7342a3d1e321b9f9cfaed4536cbfc602e21d2ce062aa996437d
BLAKE2b-256 checksum
How to use checksums
411d80bf31b67cba5c024f2561eee36183c45161e75cc0ddf46412249fca6f68
Upload date
Uploaded using Trusted Publishing?
What is trusted publishing?
No

Release files / cskipdict-0.0.4-cp36-cp36m-macosx_10_13_x86_64.whl

Download URL cskipdict-0.0.4-cp36-cp36m-macosx_10_13_x86_64.whl
Size 14.9 kB
Tags CPython 3.6 CPython 3.6 pymalloc macOS 10.13+ x86-64
SHA-256 checksum
How to use checksums
6f93a083ee2212cec0bd198e04c65a2dced40d519e1ba997d70e54f472422622
BLAKE2b-256 checksum
How to use checksums
b81dd4665176be9e57921da0dd196fe3349f37659606566058c2c66837ad346a
Upload date
Uploaded using Trusted Publishing?
What is trusted publishing?
No

Release files / cskipdict-0.0.4-cp27-cp27m-macosx_10_13_x86_64.whl

Download URL cskipdict-0.0.4-cp27-cp27m-macosx_10_13_x86_64.whl
Size 14.8 kB
Tags CPython 2.7 CPython 2.7 pymalloc macOS 10.13+ x86-64
SHA-256 checksum
How to use checksums
5f2fcd3ff5902f295b5e36ac70d24179eddecbbe822b367ea1f1ff982a46e237
BLAKE2b-256 checksum
How to use checksums
930530e6db9bc56c752bf2ba57c003885fc42cb978f337747dee3f1e87e74e21
Upload date
Uploaded using Trusted Publishing?
What is trusted publishing?
No

Security for cskipdict 0.0.4

Provenance

Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.

No provenance found

None of the files in this release were uploaded with provenance metadata.

A note on package security

PyPI is a repository for distributing packages, not a service for auditing them. While third-party security researchers and our staff do their best to detect and remove malicious packages, PyPI cannot guarantee the quality, security or suitability of any given package.

To learn more about protecting yourself from malicious actors, visit our package security documentation.

Anthropic, PBC Visionary sponsor Bloomberg Visionary sponsor Hudson River Trading Visionary sponsor Meta Visionary sponsor NVIDIA Visionary sponsor Microsoft Sustainability sponsor Depot Continuous Integration AWS Cloud computing and Security Sponsor Datadog Monitoring Fastly CDN Google Download Analytics Sentry Error logging StatusPage Status page