pyo3-polars
qsv
| pyo3-polars | qsv | |
|---|---|---|
| 3 | 13 | |
| 201 | 2,241 | |
| 7.0% | - | |
| 7.3 | 9.9 | |
| about 1 month ago | 4 days ago | |
| Rust | Rust | |
| MIT License | The Unlicense |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
pyo3-polars
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Introducing polars expression plugins for python
See the full examples here: https://github.com/pola-rs/pyo3-polars/tree/main/example/derive_expression
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Polars query engine 0.29.0 released
Something like this? https://github.com/pola-rs/pyo3-polars
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Easiest way to get a pandas dataframe from python to rust?
If you use polars, you can go between rust and python for free within the same process. I have made pyo3 extensions to make this easier: https://github.com/pola-rs/pyo3-polars
qsv
- FLaNK Weekly 31 December 2023
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Qsv: Efficient CSV CLI Toolkit
Thanks for the detailed feedback @snidane!
As maintainer of qsv, here's my reply:
- Given qsv's rapid release cycle (173 releases over three years), the auto-update check is essential at the moment. Once we reach 1.0, I'll turn it off. For now, given your feedback, I've only made it check 10% of the time.
- Pivot is in the backlog and I'll be sure to add unpivot when I implement it. (https://github.com/jqnatividad/qsv/issues/799)
- I'll add a dedicated summing command with the group by (-by) and window by (-over) capability (https://github.com/jqnatividad/qsv/issues/1514). Do note that `stats` has basic sum as @ezequiel-garzon pointed out.
- With the `enum` command, qsv can achieve what you proposed with `laminate`. E.g. qsv enum --new-column newcol --constant newconstant mydata.csv --output laminated-data.csv
- With the cat rowskey command, qsv can already concatenate files with mismatched headers.
- other file formats. qsv supports parquet, csv, tsv, excel, ods, datapackage, sqlite and more (see https://github.com/jqnatividad/qsv/tree/master#file-formats). Fixed-format though is not supported yet and quite interesting, and have added it to the backlog (https://github.com/jqnatividad/qsv/issues/1515)
- as to "enable embedding outputs of commands", qsv is composable by design, so you can use standard stdin/stdout redirection/piping techniques to have it work with other CLI tools like jq, awk, etc.
Finally, just released v0.120.0 that already incorporates the less aggressive self-update check. https://github.com/jqnatividad/qsv/releases/tag/0.120.0
- Joining CSV Data Without SQL: An IP Geolocation Use Case
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Why my favourite API is a zipfile on the European Central Bank's website
qsv [1] also has a sqlp command which lets you run Polars SQL queries (even on multiple files). Here I'll send the csv data from stdin (represented by -) and then (optionally) pipe the output to the table command for formatting. The shape of the result is also printed to stderr (the (4, 2) below).
[1] https://github.com/jqnatividad/qsv
$ echo 'Name,Department,Salary
- Qsv: Ultra-fast CSV data-wrangling toolkit
- Qsv: CSVs sliced, diced and analyzed (fork of xsv)
- Nushell.sh ls – where size > 10mb – –sort-by modified
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Do Rust and Lua work well together?
It works quite well IMHO. Using the mlua crate, I’ve managed to integrate Luau as a very powerful data-wrangling DSL for qsv (https://github.com/jqnatividad/qsv)
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How manipulate this CSV in Python?
Maybe this might be better done using this? https://github.com/jqnatividad/qsv
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How to convert xslx to csv using Rust?
https://github.com/jqnatividad/qsv is another option.
What are some alternatives?
ZenithTA - A high performance python technical analysis library written in Rust and the Numpy C API.
miller - Miller is like awk, sed, cut, join, and sort for name-indexed data such as CSV, TSV, and tabular JSON
delta-rs - A native Rust library for Delta Lake, with bindings into Python
calamine - A pure Rust Excel/OpenDocument SpreadSheets file reader: rust on metal sheets
polars - Dataframes powered by a multithreaded, vectorized query engine, written in Rust
fortune-sheet - A drop-in javascript spreadsheet library that provides rich features like Excel and Google Sheets
tsv-utils - eBay's TSV Utilities: Command line tools for large, tabular data files. Filtering, statistics, sampling, joins and more.
csvquote
goawk - A POSIX-compliant AWK interpreter written in Go, with CSV support
ess-view-data - View data support for ESS
usv - Unicode Separated Values (USV) data markup for units, records, groups, files, streaming, and more.
zsv - zsv+lib: tabular data swiss-army knife CLI + world's fastest (simd) CSV parser