sealproxy
polars
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sealproxy
polars
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Why Python's Integer Division Floors (2010)
This is because 0.1 is in actuality the floating point value value 0.1000000000000000055511151231257827021181583404541015625, and thus 1 divided by it is ever so slightly smaller than 10. Nevertheless, fpround(1 / fpround(1 / 10)) = 10 exactly.
I found out about this recently because in Polars I defined a // b for floats to be (a / b).floor(), which does return 10 for this computation. Since Python's correctly-rounded division is rather expensive, I chose to stick to this (more context: https://github.com/pola-rs/polars/issues/14596#issuecomment-...).
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Polars
https://github.com/pola-rs/polars/releases/tag/py-0.19.0
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Stuff I Learned during Hanukkah of Data 2023
That turned out to be related to pola-rs/polars#11912, and this linked comment provided a deceptively simple solution - use PARSE_DECLTYPES when creating the connection:
- Polars 0.20 Released
- Segunda linguagem
- Polars: Dataframes powered by a multithreaded query engine, written in Rust
- Summing columns in remote Parquet files using DuckDB
- Polars 0.34 is released. (A query engine focussing on DataFrame front ends)
What are some alternatives?
askama - Type-safe, compiled Jinja-like templates for Rust
vaex - Out-of-Core hybrid Apache Arrow/NumPy DataFrame for Python, ML, visualization and exploration of big tabular data at a billion rows per second 🚀
okapi - OpenAPI (AKA Swagger) document generation for Rust projects
modin - Modin: Scale your Pandas workflows by changing a single line of code
typed-html - Type checked JSX for Rust
datafusion - Apache DataFusion SQL Query Engine
Ink - 🌈 React for interactive command-line apps
DataFrames.jl - In-memory tabular data in Julia
plotters - A rust drawing library for high quality data plotting for both WASM and native, statically and realtimely 🦀 📈🚀
datatable - A Python package for manipulating 2-dimensional tabular data structures
cloudscraper - A Python module to bypass Cloudflare's anti-bot page.
Apache Arrow - Apache Arrow is a multi-language toolbox for accelerated data interchange and in-memory processing