quickdict
quickdict package.
Quick Python dictionary operations.
Example
>>> from quickdict import qd_neg, qd_ifilter
>>> qd_neg({0: 1, 2: -3})
{0: -1, 2: 3}
>>> d = {0: 1, 1: 0, 2: -3}
>>> qd_ifilter(None, d)
{0: 1, 2: -3}
Installation
pip install git+https://github.com/goessl/quickdict.git
Usage
quickdict is a C extension with automatic pure Python fallback.
mapping
| Function | out-of-place | in-place |
|---|---|---|
| Unary plus | pos |
ipos |
| Negation | neg |
ineg |
filtering
| Function | out-of-place | in-place |
|---|---|---|
| Filter by value | filter |
ifilter |
| Filter by key | kfilter |
ikfilter |
| Filter by item | kvfilter |
ikvfilter |
Performance
All functions are benchmarked with perfplot against the equivalent plain Python dict comprehension.
quickdict is about twice as fast as a dict comprehension.
Roadmap
- Deploy
- Production
- Ballin
License (MIT)
Copyright (c) 2026 Sebastian Gössl
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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 OR COPYRIGHT HOLDERS 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.