From econdr at googlemail.com  Thu May  2 16:31:49 2019
From: econdr at googlemail.com (Eoin C)
Date: Thu, 2 May 2019 21:31:49 +0100
Subject: [Pandas-dev] Submitting PR for the first time
Message-ID: <51E8A655-0588-4356-8842-24AE83FA22FA@googlemail.com>

Hi, 

I would like to submit my first PR for the Pandas project. My Github user name is eoincondron and the PR is related to issue #26210. 
How do I get started?

Regards, 

Eoin 



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From william.ayd at icloud.com  Thu May  2 16:42:56 2019
From: william.ayd at icloud.com (William Ayd)
Date: Thu, 2 May 2019 13:42:56 -0700
Subject: [Pandas-dev] Submitting PR for the first time
In-Reply-To: <51E8A655-0588-4356-8842-24AE83FA22FA@googlemail.com>
References: <51E8A655-0588-4356-8842-24AE83FA22FA@googlemail.com>
Message-ID: <2EB06DF6-A86F-4473-A186-DEE38F18A65A@icloud.com>

Hi Eoin,

Thanks for the interest in contributing! The documentation houses a contributing guide which is pretty thoroughly documented; I?d suggest giving that a look:

https://pandas.pydata.org/pandas-docs/stable/development/contributing.html <https://pandas.pydata.org/pandas-docs/stable/development/contributing.html>

If you have one-off questions from there feel free to reach out via Gitter.

- Will

> On May 2, 2019, at 1:31 PM, Eoin C via Pandas-dev <pandas-dev at python.org> wrote:
> 
> Hi, 
> 
> I would like to submit my first PR for the Pandas project. My Github user name is eoincondron and the PR is related to issue #26210. 
> How do I get started?
> 
> Regards, 
> 
> Eoin 
> 
> 
> 
> _______________________________________________
> Pandas-dev mailing list
> Pandas-dev at python.org
> https://mail.python.org/mailman/listinfo/pandas-dev

William Ayd
william.ayd at icloud.com



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From jorisvandenbossche at gmail.com  Tue May 14 07:27:39 2019
From: jorisvandenbossche at gmail.com (Joris Van den Bossche)
Date: Tue, 14 May 2019 13:27:39 +0200
Subject: [Pandas-dev] Pandas development hangout - Thursday May 16 at 16:30
 UTC
Message-ID: <CALQtMBbRFk=Up6DMm0dNb=X29D3YBdjpUef=Xx-LOJQ0NXcXdg@mail.gmail.com>

Hi everyone,

We're having a dev chat this week Thursday to check the status of the
coming releases and other discussion items. It takes place Thursday (May
16) at 16:30 UTC (I *think* this is 9:30 Pacific / 12:30 Eastern / 17:30
UTC / 18:30 central Europe).
All are welcome to attend!

Calendar invite:
https://calendar.google.com/event?action=TEMPLATE&tmeid=N2VscjBkZnA2OWtmMzlzMHVramVkZ25rcTkgam9yaXN2YW5kZW5ib3NzY2hlQG0&tmsrc=jorisvandenbossche%40gmail.com
<https://calendar.google.com/event?action=TEMPLATE&tmeid=N2Z0ODh0NzdyMG1mMTFhZDJrYXFubTBydTYgam9yaXN2YW5kZW5ib3NzY2hlQG0&tmsrc=jorisvandenbossche%40gmail.com>
(will update later with video meeting link)

Agenda/Minutes:
https://docs.google.com/document/d/1tGbTiYORHiSPgVMXawiweGJlBw5dOkVJLY-licoBmBU/edit?usp=sharing

Joris
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From jorisvandenbossche at gmail.com  Tue May 14 07:50:26 2019
From: jorisvandenbossche at gmail.com (Joris Van den Bossche)
Date: Tue, 14 May 2019 13:50:26 +0200
Subject: [Pandas-dev] Pandas dev sprint June 27-30 @ Nashville
Message-ID: <CALQtMBaqrwUG_mS32obsAWeYUMac9WPH+TEbG11ZoAhXqSaFwQ@mail.gmail.com>

Dear all,

We are planning to do a pandas sprint end of June in Nashville (Tennessee,
USA): June 27-30. We will be meeting with some of the core devs (so not a
sprint to jump-start newcomers in this case), but sending this to the
mailing list to invite other pandas (or related libraries) contributors.
The exact planning of the sprint still needs to be discussed, but we will
probably be hacking and discussing on pandas, extension arrays, next
versions of pandas, etc.

*So if you are interested, let me know something! *We want to keep the
number of participants somewhat limited, and also need to plan the location
and funding, so please state your interest *before May 30*.
If you would like to participate, but not sure if you would fit at such a
sprint, don't hesitate to mail me personally.

Best,
Joris
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From changshe at gmail.com  Tue May 14 16:59:11 2019
From: changshe at gmail.com (Chang She)
Date: Tue, 14 May 2019 13:59:11 -0700
Subject: [Pandas-dev] Pandas dev sprint June 27-30 @ Nashville
In-Reply-To: <CALQtMBaqrwUG_mS32obsAWeYUMac9WPH+TEbG11ZoAhXqSaFwQ@mail.gmail.com>
References: <CALQtMBaqrwUG_mS32obsAWeYUMac9WPH+TEbG11ZoAhXqSaFwQ@mail.gmail.com>
Message-ID: <CADwh0WNn6OzsDdTMO0+cg=ivKV6d09mAYRv6Tart16v+XbVT0A@mail.gmail.com>

I'll be out of the country during those dates. Can I still join in remotely?

Here's what I'd be interested in working on if there's appetite for these
to be part of pandas and friends:

1. A stale PR on Series.explode I haven't had any time to finish up (
https://github.com/pandas-dev/pandas/pull/24366).
2. Open sourcing an improvement to the pandas-redshift connector that
speeds up the ingestion of medium amounts of data using a combination of
unload + read_csv + multiprocessing.
3. A minor improvement to allow read_parquet to work with globs directly.
This makes it a lot easier for pandas to read parquet generated by Spark.



On Tue, May 14, 2019 at 4:50 AM Joris Van den Bossche <
jorisvandenbossche at gmail.com> wrote:

> Dear all,
>
> We are planning to do a pandas sprint end of June in Nashville (Tennessee,
> USA): June 27-30. We will be meeting with some of the core devs (so not a
> sprint to jump-start newcomers in this case), but sending this to the
> mailing list to invite other pandas (or related libraries) contributors.
> The exact planning of the sprint still needs to be discussed, but we will
> probably be hacking and discussing on pandas, extension arrays, next
> versions of pandas, etc.
>
> *So if you are interested, let me know something! *We want to keep the
> number of participants somewhat limited, and also need to plan the location
> and funding, so please state your interest *before May 30*.
> If you would like to participate, but not sure if you would fit at such a
> sprint, don't hesitate to mail me personally.
>
> Best,
> Joris
>
>
> _______________________________________________
> Pandas-dev mailing list
> Pandas-dev at python.org
> https://mail.python.org/mailman/listinfo/pandas-dev
>
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From jorisvandenbossche at gmail.com  Thu May 16 12:30:53 2019
From: jorisvandenbossche at gmail.com (Joris Van den Bossche)
Date: Thu, 16 May 2019 18:30:53 +0200
Subject: [Pandas-dev] Pandas development hangout - Thursday May 16 at
 16:30 UTC
In-Reply-To: <CALQtMBbRFk=Up6DMm0dNb=X29D3YBdjpUef=Xx-LOJQ0NXcXdg@mail.gmail.com>
References: <CALQtMBbRFk=Up6DMm0dNb=X29D3YBdjpUef=Xx-LOJQ0NXcXdg@mail.gmail.com>
Message-ID: <CALQtMBZpY=XbcDu4dQe+MBjBHXcZeAQ40i4qEn2EUw5iJQUqKQ@mail.gmail.com>

I updated the event with the video link:
Hangout: https://meet.google.com/cmr-mtsx-khs
Phone: ?+1 727-258-2318? PIN: ?701 610 593?#

Op di 14 mei 2019 om 13:27 schreef Joris Van den Bossche <
jorisvandenbossche at gmail.com>:

> Hi everyone,
>
> We're having a dev chat this week Thursday to check the status of the
> coming releases and other discussion items. It takes place Thursday (May
> 16) at 16:30 UTC (I *think* this is 9:30 Pacific / 12:30 Eastern / 17:30
> UTC / 18:30 central Europe).
> All are welcome to attend!
>
> Calendar invite:
> https://calendar.google.com/event?action=TEMPLATE&tmeid=N2VscjBkZnA2OWtmMzlzMHVramVkZ25rcTkgam9yaXN2YW5kZW5ib3NzY2hlQG0&tmsrc=jorisvandenbossche%40gmail.com
> <https://calendar.google.com/event?action=TEMPLATE&tmeid=N2Z0ODh0NzdyMG1mMTFhZDJrYXFubTBydTYgam9yaXN2YW5kZW5ib3NzY2hlQG0&tmsrc=jorisvandenbossche%40gmail.com>
> (will update later with video meeting link)
>
> Agenda/Minutes:
> https://docs.google.com/document/d/1tGbTiYORHiSPgVMXawiweGJlBw5dOkVJLY-licoBmBU/edit?usp=sharing
>
> Joris
>
>
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From maxhalford25 at gmail.com  Tue May 21 12:15:50 2019
From: maxhalford25 at gmail.com (Max Halford)
Date: Tue, 21 May 2019 18:15:50 +0200
Subject: [Pandas-dev] Skyline queries
Message-ID: <CAPyoE90kLoEtN_gJ9pPesON4mJ6EX-Tsx5KxSROSB9f2fFt2uw@mail.gmail.com>

Hello everyone,

I was wondering if there was any interest to code a skyline operator
<https://www.wikiwand.com/en/Skyline_operator> in pandas? I just wrote a short
blog post <https://maxhalford.github.io/blog/skyline-queries-in-python/> on
the subject. I can't decide if this is part of pandas' scope, hence the
email. However skyline are useful for many data mining applications. The
idea would be to have .skyline(to_minimize, to_maximize) function where a
user could specify which attributes he wishes to minimize and maximize. The
function would return the subset of rows that belong to the skyline (which
is slightly different from what I did in my blog post).

Kind regards.

-- 
Max Halford
+336 28 25 13 38
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From tom.augspurger88 at gmail.com  Tue May 21 14:20:05 2019
From: tom.augspurger88 at gmail.com (Tom Augspurger)
Date: Tue, 21 May 2019 13:20:05 -0500
Subject: [Pandas-dev] Skyline queries
In-Reply-To: <CAPyoE90kLoEtN_gJ9pPesON4mJ6EX-Tsx5KxSROSB9f2fFt2uw@mail.gmail.com>
References: <CAPyoE90kLoEtN_gJ9pPesON4mJ6EX-Tsx5KxSROSB9f2fFt2uw@mail.gmail.com>
Message-ID: <CAE1aY-kCvzsrRVRBG_12Z_ci_HaRfzedp+=TjTYb_UTvRtOPKQ@mail.gmail.com>

That seems like it's a bit out of pandas' scope. But if that gets added to
another package then a PR adding it to pandas' ecosystem
page would certainly be welcome.

Tom

On Tue, May 21, 2019 at 11:33 AM Max Halford <maxhalford25 at gmail.com> wrote:

> Hello everyone,
>
> I was wondering if there was any interest to code a skyline operator
> <https://www.wikiwand.com/en/Skyline_operator> in pandas? I just wrote a short
> blog post <https://maxhalford.github.io/blog/skyline-queries-in-python/>
> on the subject. I can't decide if this is part of pandas' scope, hence the
> email. However skyline are useful for many data mining applications. The
> idea would be to have .skyline(to_minimize, to_maximize) function where a
> user could specify which attributes he wishes to minimize and maximize. The
> function would return the subset of rows that belong to the skyline (which
> is slightly different from what I did in my blog post).
>
> Kind regards.
>
> --
> Max Halford
> +336 28 25 13 38
> _______________________________________________
> Pandas-dev mailing list
> Pandas-dev at python.org
> https://mail.python.org/mailman/listinfo/pandas-dev
>
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From tmrsg11 at gmail.com  Sat May 25 00:37:26 2019
From: tmrsg11 at gmail.com (C W)
Date: Sat, 25 May 2019 00:37:26 -0400
Subject: [Pandas-dev] Was the range() function ever created in Pandas?
Message-ID: <CAE2FW2=v4HXDDWK_oHmc9TBrw2NmXG2eGDDaGrFcP6GC6LZuEw@mail.gmail.com>

Hello all,

I am want to calculate the range of a vector. I saw that someone asked for
range() in 2011, but was it ever created?
https://github.com/pandas-dev/pandas/issues/288

Response at the time was to use df.describe(). But df.describe() gives all
the 5-number summary statistics, but I DON'T WANT wall the extra stuff I
didn't ask for. I was expecting a numerical number. I can use that to feed
into another function.

It exists in Matlab and R, why not in Python? I'm quite frustrated every
time I need to calculate the range.

Thanks in advance.
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From jorisvandenbossche at gmail.com  Sat May 25 08:41:59 2019
From: jorisvandenbossche at gmail.com (Joris Van den Bossche)
Date: Sat, 25 May 2019 14:41:59 +0200
Subject: [Pandas-dev] Was the range() function ever created in Pandas?
In-Reply-To: <CAE2FW2=v4HXDDWK_oHmc9TBrw2NmXG2eGDDaGrFcP6GC6LZuEw@mail.gmail.com>
References: <CAE2FW2=v4HXDDWK_oHmc9TBrw2NmXG2eGDDaGrFcP6GC6LZuEw@mail.gmail.com>
Message-ID: <CALQtMBYR8hsNPqm+iyMPSeE4kOs3ZVBWVt2+zxEufvAJsVUL3Q@mail.gmail.com>

The issue you mention was actually closed by a commit adding a value_range
function, but it was later deprecated and removed again.

If you don't want everything that describe() gives, you can calculate
(series.min(),
series.max()) both manually.
If you regularly need this, I would recommend writing a small function
yourself that you can easily reuse.

What is and what is not included in pandas is always a trade-off: a balance
between more functionality out of the box vs an overload of functionality
(and especially an too many methods on the Series/DataFrame objects) in
which many users get lost.
Currently, we already have a lot of methods on Series/DataFrame, and adding
an extra needs a very good justification. Personally, I don't think that a
range function is worth it.

Best,
Joris

Op za 25 mei 2019 om 09:15 schreef C W <tmrsg11 at gmail.com>:

> Hello all,
>
> I am want to calculate the range of a vector. I saw that someone asked for
> range() in 2011, but was it ever created?
> https://github.com/pandas-dev/pandas/issues/288
>
> Response at the time was to use df.describe(). But df.describe() gives all
> the 5-number summary statistics, but I DON'T WANT wall the extra stuff I
> didn't ask for. I was expecting a numerical number. I can use that to feed
> into another function.
>
> It exists in Matlab and R, why not in Python? I'm quite frustrated every
> time I need to calculate the range.
>
> Thanks in advance.
> _______________________________________________
> Pandas-dev mailing list
> Pandas-dev at python.org
> https://mail.python.org/mailman/listinfo/pandas-dev
>
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From jorisvandenbossche at gmail.com  Sat May 25 08:54:26 2019
From: jorisvandenbossche at gmail.com (Joris Van den Bossche)
Date: Sat, 25 May 2019 14:54:26 +0200
Subject: [Pandas-dev] Pandas dev sprint June 27-30 @ Nashville
In-Reply-To: <CADwh0WNn6OzsDdTMO0+cg=ivKV6d09mAYRv6Tart16v+XbVT0A@mail.gmail.com>
References: <CALQtMBaqrwUG_mS32obsAWeYUMac9WPH+TEbG11ZoAhXqSaFwQ@mail.gmail.com>
 <CADwh0WNn6OzsDdTMO0+cg=ivKV6d09mAYRv6Tart16v+XbVT0A@mail.gmail.com>
Message-ID: <CALQtMBZAQDfNhD1U4Ur_4fA8SpFFi5JOv2dusoETYV1yDnL9gA@mail.gmail.com>

You are certainly welcome to sprint those days as well. I only can't
promise that we can do any things to improve remote participation such as
video meetings (but there should be a bunch of core devs active, which
might give faster feedback on PRs if needed).

Op di 14 mei 2019 om 22:59 schreef Chang She <changshe at gmail.com>:

> I'll be out of the country during those dates. Can I still join in
> remotely?
>
> Here's what I'd be interested in working on if there's appetite for these
> to be part of pandas and friends:
>
> 1. A stale PR on Series.explode I haven't had any time to finish up (
> https://github.com/pandas-dev/pandas/pull/24366).
>

I think there is still certainly interest in such a function (I have
regularly needed something like that myself).


> 2. Open sourcing an improvement to the pandas-redshift connector that
> speeds up the ingestion of medium amounts of data using a combination of
> unload + read_csv + multiprocessing.
>

That reminds me: it might be good to mention the pandas-redshift packages
somewhere in the docs (in the ecosystem page or in the sql docs).


> 3. A minor improvement to allow read_parquet to work with globs directly.
> This makes it a lot easier for pandas to read parquet generated by Spark.
>
> Do you know if there is already an open issue about this?

Best,
Joris


>
>
> On Tue, May 14, 2019 at 4:50 AM Joris Van den Bossche <
> jorisvandenbossche at gmail.com> wrote:
>
>> Dear all,
>>
>> We are planning to do a pandas sprint end of June in Nashville
>> (Tennessee, USA): June 27-30. We will be meeting with some of the core devs
>> (so not a sprint to jump-start newcomers in this case), but sending this to
>> the mailing list to invite other pandas (or related libraries) contributors.
>> The exact planning of the sprint still needs to be discussed, but we will
>> probably be hacking and discussing on pandas, extension arrays, next
>> versions of pandas, etc.
>>
>> *So if you are interested, let me know something! *We want to keep the
>> number of participants somewhat limited, and also need to plan the location
>> and funding, so please state your interest *before May 30*.
>> If you would like to participate, but not sure if you would fit at such a
>> sprint, don't hesitate to mail me personally.
>>
>> Best,
>> Joris
>>
>>
>> _______________________________________________
>> Pandas-dev mailing list
>> Pandas-dev at python.org
>> https://mail.python.org/mailman/listinfo/pandas-dev
>>
>
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From changshe at gmail.com  Sat May 25 16:43:45 2019
From: changshe at gmail.com (Chang She)
Date: Sat, 25 May 2019 13:43:45 -0700
Subject: [Pandas-dev] Pandas dev sprint June 27-30 @ Nashville
In-Reply-To: <CALQtMBZAQDfNhD1U4Ur_4fA8SpFFi5JOv2dusoETYV1yDnL9gA@mail.gmail.com>
References: <CALQtMBaqrwUG_mS32obsAWeYUMac9WPH+TEbG11ZoAhXqSaFwQ@mail.gmail.com>
 <CADwh0WNn6OzsDdTMO0+cg=ivKV6d09mAYRv6Tart16v+XbVT0A@mail.gmail.com>
 <CALQtMBZAQDfNhD1U4Ur_4fA8SpFFi5JOv2dusoETYV1yDnL9gA@mail.gmail.com>
Message-ID: <CADwh0WOE460D-emoCaV4en_8_tTrTf_yW4S4UO+QBxc8PLR1_w@mail.gmail.com>

Oh this was more me just carving time out as a forcing function for myself.
I?ll be +13 hour ahead so certainly not expecting video conferences. Code
reviews would be appreciated.

As for the read_parquet item, I will either attach to an existing issue or
open a new one so discussion can happen on github.

Thanks.

On Saturday, May 25, 2019, Joris Van den Bossche <
jorisvandenbossche at gmail.com> wrote:

> You are certainly welcome to sprint those days as well. I only can't
> promise that we can do any things to improve remote participation such as
> video meetings (but there should be a bunch of core devs active, which
> might give faster feedback on PRs if needed).
>
> Op di 14 mei 2019 om 22:59 schreef Chang She <changshe at gmail.com>:
>
>> I'll be out of the country during those dates. Can I still join in
>> remotely?
>>
>> Here's what I'd be interested in working on if there's appetite for these
>> to be part of pandas and friends:
>>
>> 1. A stale PR on Series.explode I haven't had any time to finish up (
>> https://github.com/pandas-dev/pandas/pull/24366).
>>
>
> I think there is still certainly interest in such a function (I have
> regularly needed something like that myself).
>
>
>> 2. Open sourcing an improvement to the pandas-redshift connector that
>> speeds up the ingestion of medium amounts of data using a combination of
>> unload + read_csv + multiprocessing.
>>
>
> That reminds me: it might be good to mention the pandas-redshift packages
> somewhere in the docs (in the ecosystem page or in the sql docs).
>
>
>> 3. A minor improvement to allow read_parquet to work with globs directly.
>> This makes it a lot easier for pandas to read parquet generated by Spark.
>>
>> Do you know if there is already an open issue about this?
>
> Best,
> Joris
>
>
>>
>>
>> On Tue, May 14, 2019 at 4:50 AM Joris Van den Bossche <
>> jorisvandenbossche at gmail.com> wrote:
>>
>>> Dear all,
>>>
>>> We are planning to do a pandas sprint end of June in Nashville
>>> (Tennessee, USA): June 27-30. We will be meeting with some of the core devs
>>> (so not a sprint to jump-start newcomers in this case), but sending this to
>>> the mailing list to invite other pandas (or related libraries) contributors.
>>> The exact planning of the sprint still needs to be discussed, but we
>>> will probably be hacking and discussing on pandas, extension arrays, next
>>> versions of pandas, etc.
>>>
>>> *So if you are interested, let me know something! *We want to keep the
>>> number of participants somewhat limited, and also need to plan the location
>>> and funding, so please state your interest *before May 30*.
>>> If you would like to participate, but not sure if you would fit at such
>>> a sprint, don't hesitate to mail me personally.
>>>
>>> Best,
>>> Joris
>>>
>>>
>>> _______________________________________________
>>> Pandas-dev mailing list
>>> Pandas-dev at python.org
>>> https://mail.python.org/mailman/listinfo/pandas-dev
>>>
>>
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From tmrsg11 at gmail.com  Sat May 25 14:41:40 2019
From: tmrsg11 at gmail.com (C W)
Date: Sat, 25 May 2019 14:41:40 -0400
Subject: [Pandas-dev] Was the range() function ever created in Pandas?
In-Reply-To: <CALQtMBYR8hsNPqm+iyMPSeE4kOs3ZVBWVt2+zxEufvAJsVUL3Q@mail.gmail.com>
References: <CAE2FW2=v4HXDDWK_oHmc9TBrw2NmXG2eGDDaGrFcP6GC6LZuEw@mail.gmail.com>
 <CALQtMBYR8hsNPqm+iyMPSeE4kOs3ZVBWVt2+zxEufvAJsVUL3Q@mail.gmail.com>
Message-ID: <CAE2FW2mUZe0gMu6CWHQ0uO123FMqXDjwCaW2ijhbqWCtbEGzqg@mail.gmail.com>

Thanks Joris.

I'm from the statistical side, not cs. Range is very fundamental --- part
of the 5-summary statistics.

My understanding is that Pandas is the R equivalent. Even the documentation
on github claims some methods are just R function written in Python.

Best!

On Sat, May 25, 2019 at 8:42 AM Joris Van den Bossche <
jorisvandenbossche at gmail.com> wrote:

> The issue you mention was actually closed by a commit adding a value_range
> function, but it was later deprecated and removed again.
>
> If you don't want everything that describe() gives, you can calculate (series.min(),
> series.max()) both manually.
> If you regularly need this, I would recommend writing a small function
> yourself that you can easily reuse.
>
> What is and what is not included in pandas is always a trade-off: a
> balance between more functionality out of the box vs an overload of
> functionality (and especially an too many methods on the Series/DataFrame
> objects) in which many users get lost.
> Currently, we already have a lot of methods on Series/DataFrame, and
> adding an extra needs a very good justification. Personally, I don't think
> that a range function is worth it.
>
> Best,
> Joris
>
> Op za 25 mei 2019 om 09:15 schreef C W <tmrsg11 at gmail.com>:
>
>> Hello all,
>>
>> I am want to calculate the range of a vector. I saw that someone asked
>> for range() in 2011, but was it ever created?
>> https://github.com/pandas-dev/pandas/issues/288
>>
>> Response at the time was to use df.describe(). But df.describe() gives
>> all the 5-number summary statistics, but I DON'T WANT wall the extra stuff
>> I didn't ask for. I was expecting a numerical number. I can use that to
>> feed into another function.
>>
>> It exists in Matlab and R, why not in Python? I'm quite frustrated every
>> time I need to calculate the range.
>>
>> Thanks in advance.
>> _______________________________________________
>> Pandas-dev mailing list
>> Pandas-dev at python.org
>> https://mail.python.org/mailman/listinfo/pandas-dev
>>
>
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From tmrsg11 at gmail.com  Sun May 26 23:51:16 2019
From: tmrsg11 at gmail.com (C W)
Date: Sun, 26 May 2019 23:51:16 -0400
Subject: [Pandas-dev] Was the range() function ever created in Pandas?
In-Reply-To: <CALQtMBYR8hsNPqm+iyMPSeE4kOs3ZVBWVt2+zxEufvAJsVUL3Q@mail.gmail.com>
References: <CAE2FW2=v4HXDDWK_oHmc9TBrw2NmXG2eGDDaGrFcP6GC6LZuEw@mail.gmail.com>
 <CALQtMBYR8hsNPqm+iyMPSeE4kOs3ZVBWVt2+zxEufvAJsVUL3Q@mail.gmail.com>
Message-ID: <CAE2FW2mBso=sPDFJNSQYJPu-odphEQ7RjrswY_zGg=Xk2FQHJQ@mail.gmail.com>

C W <tmrsg11 at gmail.com>
Sat, May 25, 2:41 PM (1 day ago)
to Joris, pandas-dev
Why is my reply not getting posted? I am posting again below.

Thanks Joris.

I'm from the statistical side, not cs. Range is very fundamental --- part
of the 5-summary statistics.

My understanding is that Pandas is the R equivalent. Even the documentation
on github claims some methods are just R function written in Python.

Best!

On Sat, May 25, 2019 at 8:42 AM Joris Van den Bossche <
jorisvandenbossche at gmail.com> wrote:

> The issue you mention was actually closed by a commit adding a value_range
> function, but it was later deprecated and removed again.
>
> If you don't want everything that describe() gives, you can calculate (series.min(),
> series.max()) both manually.
> If you regularly need this, I would recommend writing a small function
> yourself that you can easily reuse.
>
> What is and what is not included in pandas is always a trade-off: a
> balance between more functionality out of the box vs an overload of
> functionality (and especially an too many methods on the Series/DataFrame
> objects) in which many users get lost.
> Currently, we already have a lot of methods on Series/DataFrame, and
> adding an extra needs a very good justification. Personally, I don't think
> that a range function is worth it.
>
> Best,
> Joris
>
> Op za 25 mei 2019 om 09:15 schreef C W <tmrsg11 at gmail.com>:
>
>> Hello all,
>>
>> I am want to calculate the range of a vector. I saw that someone asked
>> for range() in 2011, but was it ever created?
>> https://github.com/pandas-dev/pandas/issues/288
>>
>> Response at the time was to use df.describe(). But df.describe() gives
>> all the 5-number summary statistics, but I DON'T WANT wall the extra stuff
>> I didn't ask for. I was expecting a numerical number. I can use that to
>> feed into another function.
>>
>> It exists in Matlab and R, why not in Python? I'm quite frustrated every
>> time I need to calculate the range.
>>
>> Thanks in advance.
>> _______________________________________________
>> Pandas-dev mailing list
>> Pandas-dev at python.org
>> https://mail.python.org/mailman/listinfo/pandas-dev
>>
>
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From jreback at yahoo.com  Wed May 29 17:59:20 2019
From: jreback at yahoo.com (Jeff Reback)
Date: Wed, 29 May 2019 17:59:20 -0400
Subject: [Pandas-dev] welcome to new committers
Message-ID: <F4FD8B6C-A6F1-4335-AE47-D0E8369D6B37@yahoo.com>

I would like to warmly welcome 2 new committees to the pandas core team:

Simon Hawkins (simonjayhawkins)
Terji Peterson (topper-123)

They have consistently pushed quality PRs and have helped out other contributors. We hope that they can help make pandas even better going forward.

Welcome and thanks
Jeff 

From jorisvandenbossche at gmail.com  Thu May 30 12:43:19 2019
From: jorisvandenbossche at gmail.com (Joris Van den Bossche)
Date: Thu, 30 May 2019 18:43:19 +0200
Subject: [Pandas-dev] welcome to new committers
In-Reply-To: <F4FD8B6C-A6F1-4335-AE47-D0E8369D6B37@yahoo.com>
References: <F4FD8B6C-A6F1-4335-AE47-D0E8369D6B37@yahoo.com>
Message-ID: <CALQtMBbgiwCknR93bz0yKKfpU0Vk=EZ=8SPnxPj49M4H=5Q7wA@mail.gmail.com>

Congratulations Simon and Terji, and thanks for all your contributions!

Op wo 29 mei 2019 om 23:59 schreef Jeff Reback via Pandas-dev <
pandas-dev at python.org>:

> I would like to warmly welcome 2 new committees to the pandas core team:
>
> Simon Hawkins (simonjayhawkins)
> Terji Peterson (topper-123)
>
> They have consistently pushed quality PRs and have helped out other
> contributors. We hope that they can help make pandas even better going
> forward.
>
> Welcome and thanks
> Jeff
> _______________________________________________
> Pandas-dev mailing list
> Pandas-dev at python.org
> https://mail.python.org/mailman/listinfo/pandas-dev
>
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From wesmckinn at gmail.com  Thu May 30 13:03:29 2019
From: wesmckinn at gmail.com (Wes McKinney)
Date: Thu, 30 May 2019 12:03:29 -0500
Subject: [Pandas-dev] welcome to new committers
In-Reply-To: <CALQtMBbgiwCknR93bz0yKKfpU0Vk=EZ=8SPnxPj49M4H=5Q7wA@mail.gmail.com>
References: <F4FD8B6C-A6F1-4335-AE47-D0E8369D6B37@yahoo.com>
 <CALQtMBbgiwCknR93bz0yKKfpU0Vk=EZ=8SPnxPj49M4H=5Q7wA@mail.gmail.com>
Message-ID: <CAJPUwMAxTx-=YBfJARSX-1BL2GwGG9H+NCwURMjpS6YWt4-aJA@mail.gmail.com>

Welcome to the team, and thank you for being involved with the project!

On Thu, May 30, 2019 at 11:43 AM Joris Van den Bossche
<jorisvandenbossche at gmail.com> wrote:
>
> Congratulations Simon and Terji, and thanks for all your contributions!
>
> Op wo 29 mei 2019 om 23:59 schreef Jeff Reback via Pandas-dev <pandas-dev at python.org>:
>>
>> I would like to warmly welcome 2 new committees to the pandas core team:
>>
>> Simon Hawkins (simonjayhawkins)
>> Terji Peterson (topper-123)
>>
>> They have consistently pushed quality PRs and have helped out other contributors. We hope that they can help make pandas even better going forward.
>>
>> Welcome and thanks
>> Jeff
>> _______________________________________________
>> Pandas-dev mailing list
>> Pandas-dev at python.org
>> https://mail.python.org/mailman/listinfo/pandas-dev
>
> _______________________________________________
> Pandas-dev mailing list
> Pandas-dev at python.org
> https://mail.python.org/mailman/listinfo/pandas-dev

From wesmckinn at gmail.com  Thu May 30 13:56:27 2019
From: wesmckinn at gmail.com (Wes McKinney)
Date: Thu, 30 May 2019 12:56:27 -0500
Subject: [Pandas-dev] Pandas dev sprint June 27-30 @ Nashville
In-Reply-To: <CADwh0WOE460D-emoCaV4en_8_tTrTf_yW4S4UO+QBxc8PLR1_w@mail.gmail.com>
References: <CALQtMBaqrwUG_mS32obsAWeYUMac9WPH+TEbG11ZoAhXqSaFwQ@mail.gmail.com>
 <CADwh0WNn6OzsDdTMO0+cg=ivKV6d09mAYRv6Tart16v+XbVT0A@mail.gmail.com>
 <CALQtMBZAQDfNhD1U4Ur_4fA8SpFFi5JOv2dusoETYV1yDnL9gA@mail.gmail.com>
 <CADwh0WOE460D-emoCaV4en_8_tTrTf_yW4S4UO+QBxc8PLR1_w@mail.gmail.com>
Message-ID: <CAJPUwMDE33_=8qZSc4g_vT9xKrbp8076F8hOaF0HjccuOLBzcA@mail.gmail.com>

@Joris if you have a complete headcount for the meeting please let me
know so I can work on securing a space for us to work. Just to confirm
it's the 27th through the 30th inclusive, so 4 full days of workspace
required?

Thanks

On Sat, May 25, 2019 at 3:44 PM Chang She <changshe at gmail.com> wrote:
>
> Oh this was more me just carving time out as a forcing function for myself. I?ll be +13 hour ahead so certainly not expecting video conferences. Code reviews would be appreciated.
>
> As for the read_parquet item, I will either attach to an existing issue or open a new one so discussion can happen on github.
>
> Thanks.
>
> On Saturday, May 25, 2019, Joris Van den Bossche <jorisvandenbossche at gmail.com> wrote:
>>
>> You are certainly welcome to sprint those days as well. I only can't promise that we can do any things to improve remote participation such as video meetings (but there should be a bunch of core devs active, which might give faster feedback on PRs if needed).
>>
>> Op di 14 mei 2019 om 22:59 schreef Chang She <changshe at gmail.com>:
>>>
>>> I'll be out of the country during those dates. Can I still join in remotely?
>>>
>>> Here's what I'd be interested in working on if there's appetite for these to be part of pandas and friends:
>>>
>>> 1. A stale PR on Series.explode I haven't had any time to finish up (https://github.com/pandas-dev/pandas/pull/24366).
>>
>>
>> I think there is still certainly interest in such a function (I have regularly needed something like that myself).
>>
>>>
>>> 2. Open sourcing an improvement to the pandas-redshift connector that speeds up the ingestion of medium amounts of data using a combination of unload + read_csv + multiprocessing.
>>
>>
>> That reminds me: it might be good to mention the pandas-redshift packages somewhere in the docs (in the ecosystem page or in the sql docs).
>>
>>>
>>> 3. A minor improvement to allow read_parquet to work with globs directly. This makes it a lot easier for pandas to read parquet generated by Spark.
>>>
>> Do you know if there is already an open issue about this?
>>
>> Best,
>> Joris
>>
>>>
>>>
>>>
>>> On Tue, May 14, 2019 at 4:50 AM Joris Van den Bossche <jorisvandenbossche at gmail.com> wrote:
>>>>
>>>> Dear all,
>>>>
>>>> We are planning to do a pandas sprint end of June in Nashville (Tennessee, USA): June 27-30. We will be meeting with some of the core devs (so not a sprint to jump-start newcomers in this case), but sending this to the mailing list to invite other pandas (or related libraries) contributors.
>>>> The exact planning of the sprint still needs to be discussed, but we will probably be hacking and discussing on pandas, extension arrays, next versions of pandas, etc.
>>>>
>>>> So if you are interested, let me know something! We want to keep the number of participants somewhat limited, and also need to plan the location and funding, so please state your interest before May 30.
>>>> If you would like to participate, but not sure if you would fit at such a sprint, don't hesitate to mail me personally.
>>>>
>>>> Best,
>>>> Joris
>>>>
>>>>
>>>> _______________________________________________
>>>> Pandas-dev mailing list
>>>> Pandas-dev at python.org
>>>> https://mail.python.org/mailman/listinfo/pandas-dev
>
> _______________________________________________
> Pandas-dev mailing list
> Pandas-dev at python.org
> https://mail.python.org/mailman/listinfo/pandas-dev