pandas-dev/pandas on Hacker News

It does appear to potentially be possible: https://github.com/pandas-dev/pandas/pull/64585

comment by sco1 · 2026-03-13 · in OVH forgot they donated documentation hosting to Pandas

…bridging components. I built a simple bridge myself and ran some tests using the pandas project ( https://github.com/pandas-dev/pandas ), which has more than 30,000 issues. Even storing only metadata (such as title and type, excluding the…

comment by kwhkim · 2026-02-25 · in Show HN: Git-native-issue – issues stored as commits in refs/issues/

…I wanted an easy weekend project that positively impacts many people this is what I'd work on. [0] https://github.com/pandas-dev/pandas/blob/main/pandas/io/exc...

comment by imtringued · 2026-01-20 · in How we made Python's packaging library 3x faster

…but "BUG: Categorical columns using the PyArrow backend requires 4x more memory" (open) https://github.com/pandas-dev/pandas/issues/58062 : > On disk Parquet appears to store the category data as logical type String which is compressed…

comment by westurner · 2025-07-30 · in Writing memory efficient C structs

https://github.com/pandas-dev/pandas/pull/58623

comment by dkdcio · 2025-06-20 · in Open source can't coordinate?

…install tqdm by default. pandas-dev/pandas//pyproject.toml [project.optional-dependencies] https://github.com/pandas-dev/pandas/blob/8943c97c597677ae98... Dask solves for various adjacent problems; IDK if pandas, dask, or dask-cudf would…

comment by westurner · 2025-03-16 · in Show HN: Aiopandas – Async .apply() and .map() for Pandas, Faster API/LLMs Calls

…backwards compatibility: https://stackoverflow.com/questions/38332787/pandas-to-sql-t... + https://github.com/pandas-dev/pandas/issues/57049#issuecomme...

comment by swaraj · 2025-02-11 · in We are destroying software

…complexity around strings in Pandas. That said there is a branch that gets most of the way there: https://github.com/pandas-dev/pandas/pull/58578 . The remaining challenges are mostly around getting consensus around how to introduce this…

comment by ngoldbaum · 2024-10-24 · in My NumPy year: Creating a DType for the next generation of scientific computing

hm https://github.com/pandas-dev/pandas/blob/main/pandas/io/par... says "fastparquet" engine must be available if no pyarrow https://pypi.org/project/fastparquet/

comment by mistrial9 · 2024-05-08 · in The Birth of Parquet

there is pull request to integrate in both pydantic extra types and into pandas cose [1] [1]: https://github.com/pandas-dev/pandas/issues/53999

comment by dlahoda · 2024-02-20 · in Help Us Build Our Roadmap – Pydantic

And for an example of the practical limits of @overload, take a look at the Pandas type hints: https://github.com/pandas-dev/pandas/blob/dc5586baa9e4731805... Meanwhile it's not even possible to express such things in other static type…

comment by nerdponx · 2024-01-29 · in Python types have an expectations problem

…or intellectual property law to ensure that you're in compliance with all legal requirements. [1] https://github.com/pandas-dev/pandas/blob/main/LICENSE

comment by craigmi · 2023-05-17 · in Pandas AI

…the same URL. They might be updating it... the closest I found was the Sphinx docs source for that: https://github.com/pandas-dev/pandas/blob/main/doc/source/wh...

comment by kinow · 2023-04-03 · in Pandas 2.0

PDEP-8 suggesting various changes regarding the `inplace` and `copy` arguments: https://github.com/pandas-dev/pandas/pull/51466

comment by rekahrv · 2023-03-27 · in When is inplace in Python Pandas faster?

…doing, but not enough to actually memorize all of it. I have this printed off and hung on my wall. https://github.com/pandas-dev/pandas/blob/main/doc/cheatshee...

comment by Awelton · 2023-03-21 · in Ask HN: Resources for Fluency with Pandas?

…be aware that pandas might not be fully compatible with SQLAlchemy 2.0 yet. Some github issues: https://github.com/pandas-dev/pandas/issues/40686 https://github.com/pandas-dev/pandas/issues/40460 I'm not actively following how compatible…

comment by kh1 · 2023-01-27 · in SQLAlchemy 2.0 Released

…1563 open issues labeled with a bug tag [0]. So much for "all the bugs have been ironed out". [0] https://github.com/pandas-dev/pandas/issues?q=is%3Aopen+is%3...

comment by lr1970 · 2023-01-22 · in Replacing Pandas with Polars

Setting Inplace=True is not recommended and should be used with caution https://github.com/pandas-dev/pandas/issues/16529

comment by nojito · 2021-05-03 · in Practical SQL for Data Analysis

Pandas silently converts to different dates within the same column https://github.com/pandas-dev/pandas/issues/12585

comment by nojito · 2021-02-27 · in Arrow v1.0: After 8 years, even better dates and times for Python

Some discussion here, though these people also don't seem to have much info either: https://github.com/pandas-dev/pandas/issues/39862 One person seems to have narrowed the violation down to a zipfile version of the docs available on the…

comment by cromd · 2021-02-19 · in Pandas' reference doc considered unsafe

…provide native support for CSV parsing. For example see docs for Microsoft C# [3]. ---------- [1] https://github.com/pandas-dev/pandas/blob/v1.0.3/pandas/io/p... [2] https://github.com/pandas-dev/pandas/blob/v1.0.3/pandas/io/p... [3]…

comment by valera_rozuvan · 2020-05-15 · in So you want to write your own CSV code (2014)

…verflow.com/questions/56690909/python-is-facin... [2] https://stackoverflow.com/a/56705419/978424 [3] https://github.com/pandas-dev/pandas/blob/761bceb77d44aa63b7...

comment by ololobus · 2020-01-30 · in Pandas 1.0

…that decide what "[d]type" a Block--the most basic thing that stores data in pandas--should be. https://github.com/pandas-dev/pandas/blob/4edcc5541ff3f6470f... And then, for the ubiquitous Object dtype, often figure out which of the many…

comment by closed · 2020-01-30 · in Pandas 1.0

I searched, and this is the closest thing ( https://github.com/pandas-dev/pandas/issues/11503 ) but it is not the issue I experienced. I'm not sure how to submit a bug report, to be honest.

comment by oarabbus_ · 2019-11-15 · in Why Is the Migration to Python 3 Taking So Long?

Another more obscure one: https://github.com/pandas-dev/pandas/issues/27206 All of a sudden, a numpy release pulls in a new version for a pandas build (that incidentally breaks for py2) This without involving a "~=", but rather because…

comment by Chris2048 · 2019-08-12 · in Python Is Eating the World

…engine = "python") 1: https://pandas.pydata.org/pandas-docs/stable/generated/panda... 2: https://github.com/pandas-dev/pandas/issues/22435

comment by closed · 2018-08-29 · in Python Pandas: Tricks and Features

…(for larger sets, since according to pandas authors it is faster after a certain threshold). See https://github.com/pandas-dev/pandas/blob/master/pandas/core...

comment by proto-n · 2018-02-08 · in Python’s Weak Performance Matters

…notebook from .ipynb to LaTeX. The Pandas _repr_latex_() function calls to_latex(escape=True † ). https://github.com/pandas-dev/pandas/blob/master/pandas/core... †* The default value of escape ️ (and a few other presentational parameters)…

comment by westurner · 2018-01-07 · in Show HN: Convert Matlab/NumPy matrices to LaTeX tables

…per-se, but the article made it sounds like he's still dedicated to improvements of pandas). https://github.com/pandas-dev/pandas/graphs/contributors

comment by Bishonen88 · 2017-12-08 · in Wes McKinney, the developer of Pandas

…mention the huge contributions from the wider community toward pandas (shout-out to Jeff Reback!) https://github.com/pandas-dev/pandas/graphs/contributors

comment by aklein · 2017-12-08 · in Wes McKinney, the developer of Pandas

…can be expressed with RDF Data Cubes vocabulary And then SDMX is widely used internationally: https://github.com/pandas-dev/pandas/issues/3402#issuecommen...

comment by westurner · 2017-09-16 · in Ask HN: What can't you do in Excel? (2017)

…are not # authorized) Some pandas function can have issues with read-only buffer though: https://github.com/pandas-dev/pandas/issues/17192 (caused by a currently unsolved bug / limitation of Cython) but it can work for your use case.

comment by ogrisel · 2017-08-16 · in Let's Remove the Global Interpreter Lock

The Pandas library is not written in C at all actually. You can view the source here: https://github.com/pandas-dev/pandas/tree/master/pandas It's mostly Python with a bit of Cython, and pull requests that are not pure Python are more…

comment by jzwinck · 2017-03-28 · in An Introduction to Stock Market Data Analysis with R – Part 1

…are accepted) - Coverage [3] There's also Code Climate [4] for some more introspection. [1]: https://github.com/pydata/pandas [2]: https://travis-ci.org [3]: https://codecov.io/ [4]: https://codeclimate.com/

comment by metakermit · 2016-05-28 · in Ask HN: How do you handle large Python projects?

…Pandas...but was rejected as being unpythonic. Oh and the devs claimed Apache Arrow was vaporware ! https://github.com/pydata/pandas/issues/12381

comment by sandGorgon · 2016-03-30 · in Feather: A Fast On-Disk Format for Data Frames for R and Python

…Can what dask is doing, be adapted to a simple case scenario of saving a workspace snapshot? [1] https://github.com/pydata/pandas/issues/12381#issuecomment-1...

comment by sandGorgon · 2016-02-27 · in Distributed NumPy Arrays

I found the pandas tests to be a great source for implementing robust CSV parsers: https://github.com/pydata/pandas/blob/master/pandas/io/tests...

comment by iampims · 2015-08-16 · in Miller is like sed, awk, cut, join, and sort for name-indexed data such as CSV

Here's the link to the Pandas DataFrame source: https://github.com/pydata/pandas/blob/master/pandas/core/fra... We spent a month of Sundays going through this in the NYC Python office hours. You learn a lot about this object by reading the…

comment by aaronchall · 2015-07-16 · in Ask HN: Good Python codebases to read?

The loading time is probably because of the way they are using the ORM: https://github.com/pydata/pandas/issues/8953 I guess it also isn't a great approach to do row based filtering using a data frame.

comment by maxerickson · 2015-04-11 · in Data analytics with Pandas and SQLite

…clearly being on GitHub, it does not find their place, e.g. http://libraries.io/pypi/pandas vs https://github.com/pydata/pandas (4k+ stars).

comment by stared · 2015-03-16 · in Libraries.io – Open-Source Discovery Service

…pip install pandas' doesn't work (which it didn't for me recently), you'll get no love upstream: https://github.com/pydata/pandas/issues/7517 As @mynegation notes, you can use Anaconda (or virtualenv).

comment by jdf · 2014-10-20 · in Pandas 0.15 has been released

…Oracle, Postgres, SQLite), Google Analytics Projects: - Open Source contributions to pandas ( https://github.com/pydata/pandas ) and tweepy ( https://github.com/tweepy/tweepy ) - My blog ( http://www.gregreda.com ), which has been at the…

comment by gjreda · 2014-07-06 · in Ask HN: Freelancer? Seeking freelancer? (July 2014)

pandas (python data analysis library): https://github.com/pydata/pandas (friendly/helpful devs and easy to contribute)

comment by hayd · 2014-07-01 · in Looking for open source projects in java and python

…for datetime string parsing: They have their own C function which parses ISO-8601 datetime strings: https://github.com/pydata/pandas/blob/2f1a6c412c3d1cbdf56610... They have a version of strptime written in cython:…

comment by birken · 2014-06-10 · in Show HN: A fast ISO8601 date-time parser for Python

…know which issues might be well suited to a new contributor jumping in (see "Good as first PR" in https://github.com/pydata/pandas/issues for an example).

comment by Splendor · 2013-09-30 · in Ask HN: Finding contributors for open source project?