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A sorted mapping object

Project description

A sorted mapping object.

sortedmap is a python dict api interface to the C++ std::map type. sortedmap implements the full dict object interface with a few differences:

  1. Objects are stored in a red black tree. All keys must be comparable to eachother though they do not need to be hashable. This means all keys must implement at least __lt__ and __eq__.
  2. O(log(n)) lookup, insert, and deletes because of the red- black tree backing. This is worse than dict which offers O(1) lookup, insert, and delete. The C++ implementation offers low constants
  3. popitem accepts a first=True argument which says to pop from the front or the back. dict.popitem pops an abitrary item; however sortedmap pops the first or the last item.

Dependencies

sortedmap has no python package depencencies but requires CPython 2.7 or >=3.4. sortedmap depends on CPython 2 or 3 and some means of compiling C++14. We recommend using g++ to compile sortedmap. Compilation and testing was done with gcc 5.3.0

License

sortedmap is free software, licensed under the GNU Lesser General Public License, version 2.1. For more information see the LICENSE file.

Source

Source code is hosted on github at https://github.com/llllllllll/sortedmap.

Project details


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This version
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0.1.0

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