SortedContainers

SortedContainers is an Apache2 licensed containers library, written in pure-Python, and fast as C-extensions.

Python’s standard library is great until you need a sorted container type. Many will attest that you can get really far without one, but the moment you really need a sorted list, dict, or set, you’re faced with a dozen different implementations, most using C-extensions without great documentation and benchmarking.

Things shouldn’t be this way. Not in Python.

>>> sl = sortedcontainers.SortedList(xrange(10000000))
>>> 1234567 in sl
True
>>> sl[7654321]
7654321
>>> sl.add(1234567)
>>> sl.count(1234567)
2
>>> sl *= 3
>>> len(sl)
30000003

Note: don’t try this at home without at least a gigabyte of memory. In Python an integer requires at least 12 bytes. SortedList will add about 4 bytes per object stored in the container. That’s pretty hard to beat as it’s the cost of a pointer to each object. It’s also 66% less overhead than a typical binary tree implementation for which every node must also store two pointers to children nodes.

SortedContainers takes all of the work out of Python sorted types - making your deployment and use of Python easy. There’s no need to install a C compiler or pre-build and distribute custom extensions. Performance is a feature and testing has 100% coverage with unit tests and hours of stress.

Features

Pure-Python
Fully documented
Benchmark comparison
100% test coverage
Hours of stress testing
Performance matters (often faster than C implementations)
Compatible API (nearly identical to popular blist and rbtree modules)
Feature-rich (e.g. get the five largest keys in a sorted dict: d.iloc(-5:))
Pragmatic design (e.g. SortedSet is mostly a Python set with a SortedList index)
Developed on Python 2.7
Tested on Python 2.6, 2.7, 3.2, 3.3, and 3.4

Quickstart

Installing SortedContainers is simple with pip:

> pip install sortedcontainers

You can access documentation in the interpreter with Python’s built-in help function:

>>> from sortedcontainers import SortedList, SortedSet, SortedDict
>>> help(SortedList)

Documentation

Complete documentation including performance comparisons is available at http://www.grantjenks.com/docs/sortedcontainers/ .

Contribute

Collaborators are welcome!

Check for open issues or open a fresh issue to start a discussion around a bug. There is a Contributor Friendly tag for issues that should be used by people who are not very familiar with the codebase yet.
Fork the repository on GitHub and start making your changes to a new branch.
Write a test which shows that the bug was fixed.
Send a pull request and bug the maintainer until it gets merged and published. :)

Useful Links

SortedContainers License

Licensed under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Metadata

Release files for sortedcontainers 0.7.0

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

Source distribution (sdist)

Source distribution for sortedcontainers 0.7.0
File	Size	Uploaded
sortedcontainers-0.7.0.zip	22.5 kB	Apr 4, 2014	Details

Release files / sortedcontainers-0.7.0.zip

Download URL	sortedcontainers-0.7.0.zip
Size	22.5 kB
Tags	Source
SHA-256 checksum How to use checksums	`3b7b1df352ee808c2ca9e80d67889c6f40e93b263e8c03cfc6527c22b5799a89`
BLAKE2b-256 checksum How to use checksums	`3d8793906e88ba4ff71bbbd02831e0cdabe1e8eed89ec96d6d1d3c8c344f31db`
Upload date	Apr 4, 2014
Uploaded using Trusted Publishing? What is trusted publishing?	No