[Numpy-discussion] Changes to `np.loadtxt`

[Sebastian Berg]

Hi all,

just a brief heads up that:

https://github.com/numpy/numpy/pull/20580

is now merged.  This moves `np.loadtxt` to C.  Mainly making it much
faster.  There are also some other improvements and changes though:

* It now supports `quotechar='"'` to support Excel dialect CSV.
* Parsing some numbers is stricter (e.g. removed support for `_`
  or hex float parsing by default).
* `max_rows` now actually counts rows and not lines.  A warning
  is given if this makes a difference (blank lines).
* Some exception will change, parsing failures now (almost) always
  give an informative `ValueError`.
* `converters=callable` is now valid to provide a single converter
  for all columns.

Please test, and let us know if there is any issue or followup you
would like to see.  

We do have possible followups planned
* Consider deprecating the `encoding="bytes"` default which exists
  for Python 2 compatibility.
* Consider renaming `skip_rows` to the more precise `skip_lines`.

Moving to C unlocks possible further improvement, such as full
`csv.Dialect` support.  We do not have this on the roadmap, but such
contributions are possible now.
Similarly, it should be possible to rewrite `genfromtxt` based on this
work.

Cheers,

Sebastian


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[Numpy-discussion] SciPy 2022 - Call for Proposals

[Melissa Mendonça]

Hello, folks - the following text is shared by request of the organizers
for the 2022 SciPy Conference.

---

Hello Everyone,


We are reaching out to you about the 21st annual Scientific Computing with
Python Conference — also known as *SciPy 2022*
 — that will be held July 11-17, 2022 in
Austin, Texas.


The *call for submissions*  is
now open, and we would love to receive proposals from folks in your
organization. We seek submissions for *talks and posters*
 by *February 11*.
This year, in addition to the general conference track and domain
mini-symposia, we are accepting submissions for two specialized tracks: (1)
Machine Learning and Data Science, and (2) Data Life Cycle. We are also
seeking *tutorial*  submissions
by *February 15.*


This year's conference will be held in-person in Austin, Texas.
*Registration*  opens February 3
and early bird rates end May 1. Scholarships are available this year – if
you’d like to apply for a scholarship to attend, please fill out this *form*
.
The deadline for *scholarships*
 is *March 13*.


The conference will conclude with two days of *Sprints*
 focused on developing and
maintaining open source Python scientific software. In addition we are
proud to offer again our Mentorship Program and networking events with
focused topics like “Careers in Data Science.”


You can find out more about our programming at
*https://www.scipy2022.scipy.org/about*
. The full schedule will be
published later in May. In the meantime, please check out *last year’s
schedule*  and *videos of last
year’s talks and events*

to get a better idea of what SciPy conferences are like.


SciPy 2022 is shaping up to be a fantastic conference. We hope you'll join
us in July!


SciPy Organizers
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[Numpy-discussion] NumPy Development Meeting Wednesday - Triage Focus

[Sebastian Berg]

Hi all,

Our bi-weekly triage-focused NumPy development meeting is Wednesday,
Feburary 9th at 17:00 UTC (9:00am Pacific Time).
Everyone is invited to join in and edit the work-in-progress meeting
topics and notes:
https://hackmd.io/68i_JvOYQfy9ERiHgXMPvg

I encourage everyone to notify us of issues or PRs that you feel should
be prioritized, discussed, or reviewed.

Best regards

Sebastian


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