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# MacOS | ||
.DS_Store | ||
functionalpy.egg-info | ||
iter.egg-info |
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SRC_PATH = functionalpy | ||
SRC_PATH = iter | ||
MAKEFLAGS = --no-print-directory | ||
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install-dev: | ||
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Metadata-Version: 2.1 | ||
Name: functionalpy | ||
Version: 0.16.0 | ||
Summary: functionalpy | ||
Author-email: Martin Bernstorff <martinbernstorff@gmail.com> | ||
License: MIT License | ||
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Copyright © 2023 Martin Bernstorff | ||
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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: | ||
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The above copyright notice and this permission notice shall be included in all | ||
copies or substantial portions of the Software. | ||
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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. | ||
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Project-URL: homepage, https://github.com/MartinBernstorff/FunctionalPy | ||
Project-URL: repository, https://github.com/MartinBernstorff/FunctionalPy | ||
Project-URL: documentation, https://MartinBernstorff.github.io/FunctionalPy/ | ||
Classifier: Programming Language :: Python :: 3.10 | ||
Classifier: Programming Language :: Python :: 3.11 | ||
Requires-Python: >=3.10 | ||
Description-Content-Type: text/markdown | ||
License-File: LICENSE | ||
Requires-Dist: linetimer | ||
Requires-Dist: polars | ||
Provides-Extra: dev | ||
Requires-Dist: cruft==2.15.0; extra == "dev" | ||
Requires-Dist: pyright==1.1.344; extra == "dev" | ||
Requires-Dist: pytest==7.4.4; extra == "dev" | ||
Requires-Dist: pytest-cov==4.1.0; extra == "dev" | ||
Requires-Dist: pytest-xdist==3.5.0; extra == "dev" | ||
Requires-Dist: pytest-sugar==0.9.7; extra == "dev" | ||
Requires-Dist: diff-cover==8.0.2; extra == "dev" | ||
Requires-Dist: ruff==0.1.9; extra == "dev" | ||
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# FunctionalPy | ||
[][dev container] | ||
[][pypi status] | ||
[][pypi status] | ||
[][tests] | ||
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[pypi status]: https://pypi.org/project/FunctionalPy/ | ||
[tests]: https://github.com/MartinBernstorff/FunctionalPy/actions?workflow=Tests | ||
[dev container]: https://vscode.dev/redirect?url=vscode://ms-vscode-remote.remote-containers/cloneInVolume?url=https://github.com/MartinBernstorff/FunctionalPy/ | ||
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<!-- start short-description --> | ||
**ALPHA**: APIs can change dramatically without notice. | ||
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Python has implemented `map`, `filter` etc. as functions, rather than methods on a sequence. This makes the result harder to read and Iterators less used than they could be. FunctionalPy exists to change that. | ||
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You get this 🔥: | ||
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```python | ||
result = (Seq([1,2,3]) | ||
.map(multiply_by_2) | ||
.filter(is_even)) | ||
``` | ||
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Instead of this: | ||
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```python | ||
sequence = [1,2,3] | ||
multiplied = [multiply_by_2(x) for x in sequence] | ||
result = [x for x in multiplied if is_even(x)] | ||
``` | ||
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Or this: | ||
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```python | ||
result = filter(is_even, map(multiply_by_2, [1,2,3])) | ||
``` | ||
<!-- end short-description --> | ||
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## Install | ||
```bash | ||
pip install functionalpy | ||
``` | ||
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## Usage | ||
```python | ||
from functionalpy import Seq | ||
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result = (Seq([1, 2]) | ||
.filter(lambda x: x % 2 == 0) | ||
.map(lambda x: x * 2) | ||
.to_list() | ||
) | ||
assert result == [4] | ||
``` | ||
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## Prior art | ||
FunctionalPy stands on the shoulders of Scala, Rust etc. | ||
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Other Python projects have had similar ideas: | ||
* [PyFunctional](https://github.com/EntilZha/PyFunctional) has existed for 7+ years with a comprehensive feature set. It is performant, with built-in lineage and caching. Unfortunately, this makes typing [non-trivial, with a 4+ year ongoing effort to add types](https://github.com/EntilZha/PyFunctional/issues/118). | ||
* [flupy](https://github.com/olirice/flupy) is highly similar, well typed, and mature. I had some issues with `.flatten()` not being type-hinted correctly, but at the current level of maturity, `flupy` is likely a better library. | ||
* Your library here? Feel free to make an issue if you have a good alternative! | ||
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## Contributing | ||
### Conventions | ||
#### Philosophy | ||
* Make it work: Concise syntax borrowed from Scala, Rust etc. | ||
* Make it right: Fully typed, no exceptions | ||
* Make it fast: | ||
* Concurrency through `.pmap` | ||
* (Future): Caching | ||
* (Future): Refactor operations to use generators | ||
* Keep it simple: No dependencies | ||
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#### API design | ||
As a heuristic, we follow the APIs of: | ||
* Rust's [std::iter](https://doc.rust-lang.org/stable/std/iter/) | ||
* Rust's [itertools](https://docs.rs/itertools/latest/itertools/index.html) | ||
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In cases where this conflicts with typical python implementations, the API should be as predictable as possible for Python users. | ||
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#### Devcontainer | ||
1. Install [Orbstack](https://orbstack.dev/) or Docker Desktop. Make sure to complete the full install process before continuing. | ||
2. If not installed, install VSCode | ||
3. Press this [link](https://vscode.dev/redirect?url=vscode://ms-vscode-remote.remote-containers/cloneInVolume?url=https://github.com/MartinBernstorff/FunctionalPy/) | ||
4. Complete the setup process | ||
5. Done! Easy as that. | ||
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## 💬 Where to ask questions | ||
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| Type | | | ||
| ------------------------------ | ---------------------- | | ||
| 🚨 **Bug Reports** | [GitHub Issue Tracker] | | ||
| 🎁 **Feature Requests & Ideas** | [GitHub Issue Tracker] | | ||
| 👩💻 **Usage Questions** | [GitHub Discussions] | | ||
| 🗯 **General Discussion** | [GitHub Discussions] | | ||
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[github issue tracker]: https://github.com/MartinBernstorff/FunctionalPy/issues | ||
[github discussions]: https://github.com/MartinBernstorff/FunctionalPy/discussions | ||
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.cookiecutter.json | ||
.cruft.json | ||
.gitignore | ||
.pre-commit-config.yaml | ||
CHANGELOG.md | ||
CODE_OF_CONDUCT.md | ||
CONTRIBUTING.md | ||
Dockerfile | ||
LICENSE | ||
Makefile | ||
README.md | ||
pyproject.toml | ||
.devcontainer/devcontainer.json | ||
.github/dependabot.yml | ||
.github/recommended_repo_setup.md | ||
.github/workflows/check_for_rej.yml | ||
.github/workflows/dependabot.yml | ||
.github/workflows/dependabot_automerge.yml | ||
.github/workflows/release.yml | ||
.github/workflows/stalebot.yml | ||
.github/workflows/tests.yml | ||
functionalpy/__init__.py | ||
functionalpy/_sequence.py | ||
functionalpy/_sequence.pyi | ||
functionalpy/py.typed | ||
functionalpy/test_sequence.py | ||
functionalpy.egg-info/PKG-INFO | ||
functionalpy.egg-info/SOURCES.txt | ||
functionalpy.egg-info/dependency_links.txt | ||
functionalpy.egg-info/requires.txt | ||
functionalpy.egg-info/top_level.txt | ||
functionalpy/benchmark/utils.py | ||
functionalpy/benchmark/query_1/input_data.py | ||
functionalpy/benchmark/query_1/iterators_q1.py | ||
functionalpy/benchmark/query_1/polars_q1.py |
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linetimer | ||
polars | ||
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[dev] | ||
cruft==2.15.0 | ||
pyright==1.1.344 | ||
pytest==7.4.4 | ||
pytest-cov==4.1.0 | ||
pytest-xdist==3.5.0 | ||
pytest-sugar==0.9.7 | ||
diff-cover==8.0.2 | ||
ruff==0.1.9 |
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functionalpy |
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from ._iter import Iter # noqa: F401 # type: ignore |
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