On Tue, Aug 9, 2016 at 2:31 PM Juan Pablo Romero Méndez <
jpablo.rom...@gmail.com> wrote:
> Hello,
>
> In online forums sometimes people complain that they end up having to test
> constantly for None, or that a function's argument has a specific type /
> shape (which immediately brings the followi
On Tue, Aug 9, 2016 at 2:59 PM Chris Angelico wrote:
> On Wed, Aug 10, 2016 at 4:51 AM, Michael Selik
> wrote:
> > "File-like" is a good example. Rather than go through the frustration of
> a
> > formal definition for what is file-like, stay productive and
On Tue, Aug 9, 2016 at 3:22 PM Juan Pablo Romero Méndez <
jpablo.rom...@gmail.com> wrote:
> I'm actually looking for ways to minimize run time errors, so that would
> include TypeError and AttributeError.
>
> In your "File-like" example having type information would prevent me from
> even passing
On Wed, Aug 10, 2016 at 1:22 AM Juan Pablo Romero Méndez <
jpablo.rom...@gmail.com> wrote:
> 1) catching exceptions at the point where you care, 2)
> preemptively check for certain runtime conditions to avoid exceptions 3)
> write as many tests as possible 4) learn to live with runtime errors.
>
On Tue, Aug 9, 2016 at 9:31 PM Steven D'Aprano
wrote:
>
> http://steve-yegge.blogspot.com.au/2008/05/dynamic-languages-strike-back.html
Great link. I enjoyed the video, too.
https://www.youtube.com/watch?v=tz-Bb-D6teE
Buried deep in the QA section, there's a comment from the audience (I'll
par
On Wed, Aug 10, 2016 at 1:41 PM Cai Gengyang wrote:
> I managed to get this piece of code to work :
>
> >>> print("This program calculates mpg.")
> This program calculates mpg.
> >>> milesdriven = input("Enter miles driven:")
> Enter miles driven: 50
> >>> milesdriven = float(milesdriven)
> >>> g
On Wed, Aug 10, 2016, 4:34 PM Juan Pablo Romero Méndez <
jpablo.rom...@gmail.com> wrote:
>
> I've been trying to find (without success so far) an example of a situation
> where the dynamic features of a language like Python provides a clear
> advantage over languages with more than one type.
>
On
On Wed, Aug 10, 2016, 6:44 PM Juan Pablo Romero Méndez <
jpablo.rom...@gmail.com> wrote:
> As to why I asked that, there are several reasons: I have a very concrete
> need right now to find pragmatic ways to increase code quality, reduce
> number of defects, etc. in a Python code base. But also I
On Thu, Aug 11, 2016 at 10:57 AM Malcolm Greene wrote:
> Background: I'm building a rules engine for transforming rows of data
> being returned by csv DictReader, eg. each row of data is a dict of column
> name to value mappings. My rules are a list of rule objects whose
> attributes get referen
On Thu, Aug 11, 2016 at 11:01 AM Steven D'Aprano
wrote:
> That ... looks wrong. You're taking something which looks like a procedure
> in the first case (trn.execute), so it probably returns None, and yielding
> over it. Even it that's not wrong, and it actually returned something which
> you ign
On Thu, Aug 11, 2016 at 11:46 AM Michael Selik
wrote:
> On Thu, Aug 11, 2016 at 11:01 AM Steven D'Aprano <
> steve+pyt...@pearwood.info> wrote:
>
>> That ... looks wrong. You're taking something which looks like a procedure
>> in the first case (trn.execu
On Thu, Aug 11, 2016 at 1:38 PM MRAB wrote:
> On 2016-08-11 18:18, Chris Angelico wrote:
> > On Fri, Aug 12, 2016 at 3:03 AM, Atri Mahapatra
> > wrote:
> >> I have installed IDLE 3.5.1 and wrote the following to check if print
> is working. When it runs, I do not see anything is printed:
> >>
>
On Fri, Aug 12, 2016, 7:11 AM Steven D'Aprano
wrote:
>
> [1] Are there programming language aware spell checkers? If not, there
> should be.
>
A good autocomplete is much like a spell-checker. I have far fewer spelling
errors when using an editor with autocomplete.
>
--
https://mail.python.org
On Sat, Aug 13, 2016 at 12:46 PM Atri Mahapatra
wrote:
> I am trying to create a following dictionary. I am reading data from excel
>
Rather than using xlrd or other tools to read from excel, can you save the
file as CSV (comma-separated values)? I think you'll find Python's csv
module is very p
On Sun, Aug 14, 2016 at 2:21 PM Atri Mahapatra
wrote:
> I have a list of dictionaries which look like this:
> [{'Width': 100, 'Length': 20.0, 'Object': 'Object1'}, {'Width': 12.0,
> 'Length': 40.0, 'Object': 'Object2'}.. so on till 10]
>
> I would like to find the first index in the list of d
On Mon, Aug 15, 2016 at 2:01 AM Jussi Piitulainen <
jussi.piitulai...@helsinki.fi> wrote:
> There is a tradition of returning -1 when no valid index is found.
>
Sometimes it's better to break with tradition. Raise a ValueError. No
silent errors, and all that Zen.
--
https://mail.python.org/mailm
On Sun, Aug 14, 2016 at 11:01 AM wrote:
> On Sunday, August 14, 2016 at 7:09:47 AM UTC+1, Paul Rubin wrote:
> > Steven D'Aprano writes:
> > > If the Python community rallies around this "record" functionality and
> > > takes to it like they took too namedtuple
> >
> > I like namedtuple and I thin
On Fri, Aug 19, 2016 at 5:01 AM Lawrence D’Oliveiro
wrote:
> It is handy to be able to keep complex expressions together sometimes,
> when breaking them up would simply obscure their structure. To avoid lines
> getting long, why not take advantage of the two available screen/page
> dimensions to
On Sat, Aug 20, 2016 at 6:21 PM Lawrence D’Oliveiro
wrote:
> > p0 = (0, 0)
> > p1 = (major_dim, 0)
> > colour_stops = (0, rect_1_colour), (1, complement(rect_1_colour))
> > rect_1_pattern = qah.Pattern.create_linear(p0, p1, colour_stops)
>
> That’s an example of what I mean about
On Sat, Aug 20, 2016 at 8:43 PM Michael Selik
wrote:
> On Sat, Aug 20, 2016 at 6:21 PM Lawrence D’Oliveiro <
> lawrenced...@gmail.com> wrote:
>
>> > p0 = (0, 0)
>> > p1 = (major_dim, 0)
>> > colour_stops = (0, rect_1_colour), (1, compleme
On Sun, Aug 21, 2016 at 12:31 AM Lawrence D’Oliveiro
wrote:
> On Sunday, August 21, 2016 at 12:44:21 PM UTC+12, Michael Selik wrote:
> >
> > On Sat, Aug 20, 2016 at 6:21 PM Lawrence D’Oliveiro wrote:
> >
> >>> if any(not isinstance(obj, I
On Sun, Aug 21, 2016, 3:06 AM Lawrence D’Oliveiro
wrote:
> On Sunday, August 21, 2016 at 6:49:19 PM UTC+12, Michael Selik wrote:
>
> > Indeed it is, not sure why.
>
> Moral: It helps to understand the code you’re criticizing, before you
> start criticizing, not after.
>
I prefer itertools.chain.from_iterable to the sum trick.
>>> from itertools import chain
>>> lst = list('abc')
>>> list(chain.from_iterable([s]*3 for s in lst))
['a', 'a', 'a', 'b', 'b', 'b', 'c', 'c', 'c']
On Tue, Mar 29, 2016 at 5:28 PM Vito De Tullio
wrote:
> Random832 wrote:
>
> > How do
> On Mar 31, 2016, at 10:02 AM, Marko Rauhamaa wrote:
>
> However, weirdly, dicts have get but lists don't.
Read PEP 463 for discussion on this topic.
https://www.python.org/dev/peps/pep-0463/
--
https://mail.python.org/mailman/listinfo/python-list
It suddenly occurred to me that if Microsoft announced it's
Ubuntu-in-Windows feature today, no one would believe it.
On Thu, Mar 31, 2016 at 11:55 PM Steven D'Aprano
wrote:
> On Fri, 1 Apr 2016 11:13 am, Chris Angelico wrote:
>
> > Now's the time to get in with the ideas. My proposal is that Py
On Fri, Apr 1, 2016 at 1:32 AM Nagy László Zsolt
wrote:
> Does anyone know a library that already implements these functions?
>
What do you not like about the ones on PyPI?
https://pypi.python.org/pypi?%3Aaction=search&term=interval&submit=search
Depending on the resolution you want, you might
Whoops, I mixed up tasks. Here's what I meant:
def interval(start, stop, precision=60):
a, b = start.timestamp(), stop.timestamp()
return set(range(a, b, precision))
On Fri, Apr 1, 2016 at 4:31 PM Michael Selik
wrote:
> On Fri, Apr 1, 2016 at 1:32 AM Nagy Lász
Give this a shot
def snap(keyword, words):
matches = [i for i, s in enumerate(words) if s.startswith(keyword)]
for i in matches:
lst.insert(0, lst.pop(i))
Your current implementation is reassigning the local variable ``mylist`` to
a new list inside the function.
O
Humans have always had trouble with this, in many contexts. I remember
being annoyed at folks saying the year 2000 was the first year of the new
millennium, rather than 2001. They'd forgotten the Gregorian calendar
starts from AD 1.
On Fri, Apr 1, 2016, 6:58 PM Mark Lawrence via Python-list <
pyth
On Sat, Apr 2, 2016, 12:28 AM Random832 wrote:
> On Fri, Apr 1, 2016, at 19:29, Michael Selik wrote:
> > Humans have always had trouble with this, in many contexts. I remember
> > being annoyed at folks saying the year 2000 was the first year of the new
> > millennium, rat
On Sat, Apr 2, 2016, 1:46 AM Vito De Tullio wrote:
> Fillmore wrote:
>
> > I need to scan a list of strings. If one of the elements matches the
> > beginning of a search keyword, that element needs to snap to the front
> > of the list.
>
> I know this post regards the function passing, but, on yo
On Sat, Apr 2, 2016 at 6:32 AM Peter Otten <__pete...@web.de> wrote:
> Vito De Tullio wrote:
>
> > Michael Selik wrote:
> >
> >>> > I need to scan a list of strings. If one of the elements matches the
> >>> > beginning of a search keyword, th
On Sat, Apr 2, 2016 at 4:16 AM Chris Angelico wrote:
> On Sat, Apr 2, 2016 at 3:27 PM, Random832 wrote:
> > On Fri, Apr 1, 2016, at 19:29, Michael Selik wrote:
> >> Humans have always had trouble with this, in many contexts. I remember
> >> being annoyed at folks s
On Sat, Apr 2, 2016, 3:40 PM Marko Rauhamaa wrote:
> Terry Reedy :
>
> > On 4/2/2016 12:44 PM, Marko Rauhamaa wrote:
> >
> >> Nowadays software companies and communities are international.
> >
> > Grade school classrooms, especially pre-high school, are not.
>
> Parenthetically, English teachers
I might be overlooking something, but raw_input (Python 2) and input
(Python 3) won't return the input from sys.stdin until you type ENTER. Or
did I misunderstand the question?
On Sat, Apr 2, 2016 at 6:30 PM BartC wrote:
> On 02/04/2016 23:16, Ned Batchelder wrote:
> > On Saturday, April 2, 2016
How do you know when you're done typing the name of the file?
It's hard to get tone right on the internet, so I'll clarify: this is not a
rhetorical question and I mean you, LoopIO, not a generic person.
On Sun, Apr 3, 2016, 8:40 PM Loop.IO wrote:
> On Sunday, April 3, 2016 at 8:32:06 PM UTC+1,
Indeed there is. Every example in the gallery shows the code to produce it.
http://matplotlib.org/gallery.html
On Sun, Apr 3, 2016, 8:05 PM Muhammad Ali
wrote:
>
> Hi,
>
> Could anybody tell me that how can I plot graphs by matplotlib and get
> expertise in a short time? I have to plot 2D plots
On Mon, Apr 4, 2016 at 6:04 PM Sven R. Kunze wrote:
> Hi Josh,
>
> good question.
>
> On 04.04.2016 18:47, Josh B. wrote:
> > My package, available at https://github.com/jab/bidict, is currently
> laid out like this:
> >
> > bidict/
> > ├── __init__.py
> > ├── _bidict.py
> > ├── _common.py
> > ├─
> On Apr 5, 2016, at 7:49 PM, Sven R. Kunze wrote:
>
>> On 05.04.2016 19:59, Chris Angelico wrote:
>> On Wed, Apr 6, 2016 at 3:38 AM, Sven R. Kunze wrote:
Your package is currently under 500 lines. As it stands now, you could
easily flatten it to a single module:
bidict.py
It seems coding a generic interval and intervalset will bring a variety of
difficult design choices. If I were you, I'd forget making it generic and build
one specifically for the application you have in mind. That way you can ignore
most of these feature discussions.
> On Apr 5, 2016, at 2:59
> On Apr 5, 2016, at 5:17 PM, Nicolae Morkov wrote:
>
> I copied the code from Python from everyone page 67.
> Following the instructions The graphic modules by John Zelle I copied into
> the python lacation ,to be easier to find the path .
Please be more specific. What is the python
What code have you written so far?
> On Apr 5, 2016, at 5:27 PM, Muhammad Ali wrote:
>
>> On Tuesday, April 5, 2016 at 9:07:54 AM UTC-7, Oscar Benjamin wrote:
>>> On 5 April 2016 at 16:44, Muhammad Ali wrote:
On Tuesday, April 5, 2016 at 8:30:27 AM UTC-7, Joel Goldstick wrote:
On Tue,
On Wed, Apr 6, 2016, 2:51 AM Steven D'Aprano wrote:
> On Wed, 6 Apr 2016 05:56 am, Michael Selik wrote:
>
> [Sven R. Kunze]
> >> If you work like in the 80's, maybe. Instead of scrolling, (un)setting
> >> jumppoints, or use splitview of the same file, i
On Tue, Apr 5, 2016, 10:46 PM Nagy László Zsolt
wrote:
>
> >> How about creating two classes for this? One that supports zero sized
> >> intervals, and another that doesn't?
> > If you don't want zero sized intervals, just don't put any in it. You
> > don't have a separate list type to support ev
On Wed, Apr 6, 2016, 12:51 PM Marko Rauhamaa wrote:
> BartC :
> Really, there's only one high-level construct you can't live without:
> the "while" statement. Virtually every Python program has at least one
> "while" statement, and in general, it is unavoidable.
>
> Basic programs, on the other h
> On Apr 6, 2016, at 2:07 PM, ast wrote:
>
> I would like to know if it is advised or not to test
> a function's parameters before running it, e.g
> for functions stored on a public library ?
>
> def to_base(nber, base=16, use_af=True, sep=''):
> assert isinstance(nber, int) and nber >= 0
>
> On Apr 6, 2016, at 6:57 PM, George Trojan - NOAA Federal
> wrote:
>
> The module functools has partial() defined as above, then overrides the
> definition by importing partial from _functools. That would explain the
> above behaviour. My question is why?
A couple speculations why an author m
On Wed, Apr 6, 2016 at 8:16 PM George Trojan - NOAA Federal <
george.tro...@noaa.gov> wrote:
> My basic question is how to document functions created by
> functools.partial, such that the documentation can be viewed not only by
> reading the code. Of course, as the last resort, I could create my o
On Thu, Apr 7, 2016, 7:51 AM Charles T. Smith
wrote:
> On Wed, 06 Apr 2016 20:28:47 +, Rob Gaddi wrote:
>
> > Charles T. Smith wrote:
> >
> >> I just tried to write a recursive method in python - am I right that
> local
> >> variables are only lexically local scoped, so sub-instances have the
On Wed, Apr 13, 2016, 12:14 PM Antoon Pardon
wrote:
> I have been looking at the enum documentation and it
> seems enums are missing two features I rather find
> important.
>
> 1) Given an Enum value, someway to get the next/previous
>one
>
> 2) Given two Enum values, iterate over the values
On Thu, Apr 14, 2016, 7:37 PM justin walters
wrote:
> On Apr 14, 2016 9:41 AM, "Martin A. Brown" wrote:
> >
> >
> > Greetings Justin,
> >
> > >score = sum_of_votes/num_of_votes
> >
> > >votes = [(72, 4), (96, 3), (48, 2), (53, 1), (26, 4), (31, 3), (68, 2),
> (91, 1)]
> >
> > >Specifically,
On Fri, Apr 15, 2016, 11:16 AM Steven D'Aprano wrote:
> On Fri, 15 Apr 2016 06:20 pm, Antoon Pardon wrote:
>
> >>> I see, that's going to be a lot of cut & pastes.
>
> (3) In your editor, run a global Find and Replace "avltree -> self.tree".
> You will need to inspect each one rather than do it a
On Fri, Apr 15, 2016, 7:56 PM wrote:
> On Thursday, April 14, 2016 at 1:48:40 PM UTC-7, Michael Selik wrote:
> > I suggest not worrying about sanitizing inputs. If someone provides bad
> > data, Python will do the right thing: stop the program and print an
> > explanati
On Sat, Apr 16, 2016, 9:41 AM durgadevi1 <
srirajarajeswaridevikr...@gmail.com> wrote:
> what does dynamic inputs mean and how is it implemented in python
> programming?
>
In what context did you hear or read the phrase "dynamic inputs"?
>
--
https://mail.python.org/mailman/listinfo/python-list
On Sat, Apr 16, 2016, 10:56 AM Marko Rauhamaa wrote:
> Chris Angelico :
>
> > On Sat, Apr 16, 2016 at 6:06 PM, Marko Rauhamaa
> wrote:
> >> It doesn't really matter one way or another. The true WTF is that it's
> >> been changed.
> >
> > Why? Was PEP 8 inscribed on stone tablets carried down fro
On Sun, Apr 17, 2016, 7:01 AM durgadevi1 <
srirajarajeswaridevikr...@gmail.com> wrote:
> On Saturday, April 16, 2016 at 5:31:39 PM UTC+8, Michael Selik wrote:
> > On Sat, Apr 16, 2016, 9:41 AM durgadevi1 <
> > srirajarajeswaridevikr...@gmail.com> wrote:
> >
> &
On Sun, Apr 17, 2016, 4:35 PM Christopher Reimer <
christopher_rei...@icloud.com> wrote:
> Greetings,
>
> I'm currently building a chess engine to learn the finer details of
> Python. When I learned all flavors of Java in community college a decade
> ago, we had to sanity check the hell out of the
On Mon, Apr 18, 2016 at 1:05 AM Christopher Reimer <
christopher_rei...@icloud.com> wrote:
> On 4/17/2016 3:18 PM, Michael Selik wrote:
>
> > I'd rather turn the question around: how much sanity checking is
> > necessary or useful? You'll find the answer is &qu
On Tue, Apr 19, 2016 at 2:21 AM Xristos Xristoou wrote:
> I want to ask for hydrology python packages with complete function to
> calculate hydrology tasks like fill,flow direction,flow accumulator and
> more?or how can i find genetic algorithms for to do this tasks to finaly
> create a complete
On Tue, Apr 19, 2016 at 11:23 PM Christopher Reimer <
christopher_rei...@icloud.com> wrote:
> On 4/19/2016 1:02 AM, Michael Selik wrote:
>
> > Why relocate rather than remove? What message would you provide that's
> > better than ``KeyError: 42`` with a trace
On Wed, Apr 20, 2016 at 10:50 AM Sims, David (NIH/NCI) [C] <
david.si...@nih.gov> wrote:
> Hi,
>
> Cross posted at
> http://stackoverflow.com/questions/36726024/creating-dict-of-dicts-with-joblib-and-multiprocessing,
> but thought I'd try here too as no responses there so far.
>
> A bit new to pyt
On Wed, Apr 20, 2016 at 11:11 PM Steven D'Aprano
wrote:
> I want to group [repeated] subsequences. For example, I have:
> "ABCABCABCDEABCDEFABCABCABCB"
> and I want to group it into repeating subsequences. I can see two
> ways... How can I do this? Does this problem have a standard name and/or
>
On Thu, Apr 21, 2016 at 2:35 AM Michael Selik
wrote:
> On Wed, Apr 20, 2016 at 11:11 PM Steven D'Aprano
> wrote:
>
>> I want to group [repeated] subsequences. For example, I have:
>> "ABCABCABCDEABCDEFABCABCABCB"
>> and I want to group it into rep
On Thu, Apr 21, 2016 at 2:55 AM Vlastimil Brom
wrote:
> 2016-04-21 5:07 GMT+02:00 Steven D'Aprano :
> > I want to group subsequences.
> > "ABCABCABCDEABCDEFABCABCABCB"
> > ABC ABC ABCDE ABCDE F ABC ABC ABC B
> > or:
> > ABC ABC ABC D E A B C D E F ABC ABC ABC B
>
> if I am not missing something,
On Fri, Apr 22, 2016, 1:26 AM Stephen Hansen wrote:
> On Thu, Apr 21, 2016, at 08:33 PM, Christopher Reimer wrote:
> > On 4/21/2016 7:20 PM, Stephen Hansen wrote:
> > > I... that... what... I'd forget that link and pretend you never went
> > > there. Its not helpful.
> >
> > I found it on the Int
On Sat, Apr 23, 2016 at 9:01 PM Christopher Reimer <
christopher_rei...@icloud.com> wrote:
> On 4/21/2016 9:46 PM, Ethan Furman wrote:
> > Oh! and Enum!!! ;)
>
> OMG! I totally forgot about Enum. Oh, look. Python supports Enum. Now I
> don't have to roll my own!
>
> Hmm... What do we use Enum for
On Sat, Apr 23, 2016 at 9:31 PM Christopher Reimer <
christopher_rei...@icloud.com> wrote:
> On 4/21/2016 10:25 PM, Stephen Hansen wrote:
> >
> > Why not, 'color in ("black", "white")'?
>
> Checkers seems popular around here. What if I want to change "white" to
> "red," as red and black is a commo
On Sun, Apr 24, 2016, 1:51 AM Steven D'Aprano wrote:
> On Sun, 24 Apr 2016 12:34 pm, Michael Torrie wrote:
>
> > There are many aspects to Pythonic programming, not just OOP. For
> > example using modules to store shared state for your program components
> > is very pythonic, rather than using c
On Sun, Apr 24, 2016 at 2:08 PM Steven D'Aprano wrote:
> On Sun, 24 Apr 2016 04:40 pm, Michael Selik wrote:
> > I think we're giving mixed messages because we're conflating
> "constants" and globals that are expected to change.
>
> When you talk abo
>From searching bugs.python.org, I see that issues referencing CVE-2014-7185,
CVE-2013-1752, and CVE-2014-1912 have all been marked as closed. I don't
see any issues referencing CVE-2014-4650 via Python's bug tracker, but did
spot it on Red Hat's. It appears to be related to issue 21766 (
http://b
On Wed, May 4, 2016 at 10:46 AM Cai Gengyang wrote:
> I am trying to understand the boolean operator "and" in Python. It is
> supposed to return "True" when the expression on both sides of "and" are
> true
>
Not exactly, because they will short-circuit. Take a look at the docs. (
https://docs.py
On Wed, May 4, 2016, 6:51 PM DFS wrote:
> Both of the following python commands successfully create a SQLite3
> datafile which crashes Access 2003 immediately upon trying to open it
> (via an ODBC linked table).
>
Have you tried using Access 2013?
On the other hand, a SQLite3 file created in VB
On Sat, May 7, 2016 at 12:56 PM DFS wrote:
> |mixed-indentation|186 | I always use tab
>
Don't mix tabs and spaces. I suggest selecting all lines and using your
editor to convert spaces to tabs. Usually there's a feature to "tabify".
> +-++
>
On Fri, May 6, 2016 at 3:01 AM wrote:
> The PDF is generated through an external API. Since currently is generated
> on demand, this is handled synchronously via an HTTP request/response.
Are you sending the request or are you receiving the request?
If you are sending, you can just use threads
You're saying that wasn't a coded message?
On Sun, May 8, 2016, 10:44 PM srinivas devaki
wrote:
> I'm so sorry, forgot to lock my phone.
> On May 9, 2016 9:01 AM, "srinivas devaki"
> wrote:
>
> > f be gfdnbh be b GB GB BH GB vbjfhjb GB bffbbubbv GB hbu hbu
> > fjbjfbbbufhbvh VB have fqb
On Tue, May 10, 2016 at 11:48 AM Peter Otten <__pete...@web.de> wrote:
> Steven D'Aprano wrote:
> > I have a decorator that adds an attribute to the decorated function:
> >inner.instrument = instrument
> >return inner
>
> the original instrument is still accessible as f.__wrapped__.instr
On Sat, May 7, 2016 at 4:46 PM wrote:
> Il giorno sabato 7 maggio 2016 21:04:47 UTC+2, Michael Selik ha scritto:
> > On Fri, May 6, 2016 at 3:01 AM wrote:
> >
> > > The PDF is generated through an external API. Since currently is
> generated
> > > on demand,
On Fri, May 13, 2016 at 12:27 PM David Shi via Python-list <
python-list@python.org> wrote:
> I lost my indexes after grouping in Pandas.
> I managed to rest_index and got back the index column.
> But How can I get back a index row?
>
Was the grouping an aggregation? If so, the original indexes a
On Fri, May 13, 2016 at 1:10 AM Ben Finney
wrote:
> Howdy all,
>
> Ever since Python's much-celebrated Grand Unification of classes and
> types, I have used those terms interchangeably: every class is a type,
> and every type is a class.
>
> That may be an unwise conflation. With the recent rise
grouping?
>
> Regards.
>
> David
>
>
> On Friday, 13 May 2016, 17:57, Michael Selik
> wrote:
>
>
>
>
> On Fri, May 13, 2016 at 12:27 PM David Shi via Python-list <
> python-list@python.org> wrote:
>
> I lost my indexes after grouping in Pandas.
Just in case I misunderstood, why don't you make a little example of before
and after the grouping? This mailing list does not accept attachments, so
you'll have to make do with pasting a few rows of comma-separated or
tab-separated values.
On Fri, May 13, 2016 at 3:56 PM Michael Se
On Fri, May 13, 2016 at 2:41 AM Gregory Ewing
wrote:
> Dirk Bächle wrote:
> > I'm currently following the "Factory" pattern (more or less) as I know
> > it from C++ and similar languages.
>
> This statement sets off alarm bells for me. If you're using some
> design pattern in Python just because
u'KY', u'LA', u'MA', u'MD', u'ME', u'MI',
> u'MN', u'MO', u'MS', u'MT', u'NC', u'ND', u'NE', u'NH', u'NJ', u'NM', u'NV',
>
39.0, 40.0, 41.0, 42.0, 44.0, 45.0, 46.0, 47.0, 48.0, 49.0,
> 50.0,
> 51.0, 53.0, 54.0, 55.0, 56.0],
> dtype='float64', name=u'StateFIPS')
>
>
> Regards.
>
>
> David
>
>
>
> On Friday, 13 May 2016, 21:43,
What have code you tried? What error message are you receiving?
On Fri, May 13, 2016, 5:54 PM David Shi wrote:
> Hello, Michael,
>
> How to convert a float type column into an integer or label or string type?
>
>
> On Friday, 13 May 2016, 22:02, Michael Selik
> wrote:
to a dictionary, so that I
> can put values back properly.
>
>
> I like to use sid as index, some way.
>
>
> Regards.
>
>
> David
>
>
>
> On Friday, 13 May 2016, 22:58, Michael Selik
> wrote:
>
>
> What have code you tried? What error message
It looks like you're getting a Series. Apparently more that one row has the
same index.
On Fri, May 13, 2016 at 11:30 PM Michael Selik
wrote:
> What were you hoping to get from ``df[0]``?
> When you say it "yields nothing" do you mean it raised an error? What was
> the
ct. Are there anything to be
> typed in Python, to reveal objects.
>
> Regards.
>
> David
>
>
> On Saturday, 14 May 2016, 4:30, Michael Selik
> wrote:
>
>
> What were you hoping to get from ``df[0]``?
> When you say it "yields nothing" do you mean
You might also be interested in "Python for Data Analysis" for a thorough
discussion of Pandas.
http://shop.oreilly.com/product/0636920023784.do
On Sat, May 14, 2016 at 10:29 AM Michael Selik
wrote:
> David, it sounds like you'll need a thorough introduction to the basics of
On Sat, May 14, 2016 at 8:57 AM Ben Finney
wrote:
> If you dislike someone's behaviour, consider that they may not have a
> well-thought-out or coherent rason for it; and, if pressed to come up
> with a reason, we will employ all our faculties to *make up* a reason
> (typically without be
On Sun, May 15, 2016, 10:37 AM Grant Edwards
wrote:
> On 2016-05-15, Tim Chase wrote:
> > On 2016-05-15 11:46, Peter Otten wrote:
> >> def sorted_dir(folder):
> >> def getmtime(name):
> >> path = os.path.join(folder, name)
> >> return os.path.getmtime(path)
> >>
> >> retu
On Sun, May 15, 2016 at 7:07 AM David Shi wrote:
> Hello, Michael,
>
> Pandas GroupBy does not behave consistently.
>
> Last time, when we had conversation, I used grouby. It works well.
>
> Now, I thought to re-write the program, so that I can end up with a clean
> script.
>
> But, the problem
On Mon, May 16, 2016 at 5:31 PM wrote:
> After considering your guidance I think what I will do is install
> virtualenv using apt-get and then use that to create a dev environment. Is
> it ok to run get-pip.py in a virtual environment?
>
Recent versions of the virtualenv application create virtu
On Tue, May 17, 2016 at 11:18 AM Dirk Bächle wrote:
>
> > It's not so great to require
> > that the user must explicitly ``add`` their derived class after defining
> > it. Perhaps that add function could be a decorator?
>
> Our current API doesn't use decorators at all, since it's also aimed at
>
On Thu, May 19, 2016 at 1:04 PM Ian Kelly wrote:
> On Thu, May 19, 2016 at 10:31 AM, Herkermer Sherwood
> wrote:
> > Most keywords in Python make linguistic sense, but using "else" in for
> and
> > while structures is kludgy and misleading. I am under the assumption that
> > this was just utiliz
On Sat, May 21, 2016, 4:52 PM Erik wrote:
> So I guess my question is perhaps whether Python compilers should start
> to go down the same path that C compilers did 30 years ago (by starting
> to include some linter functionality)
>
Well, there's that whole optional type hints thing. You should b
On Mon, May 23, 2016 at 9:12 AM wrote:
> > On 23 mei 2016, at 14:19, Peter Otten <__pete...@web.de> wrote:
> > li...@onemanifest.net wrote:
> >
> >> I've got a 2D array
> >> And an array of indexes that for shows which row to keep for each column
> >> of values:
> >>
> >> keep = np.array([2, 3, 1
On Thu, Jun 2, 2016 at 10:06 AM Makoto Kuwata wrote:
> os.mkdir(name)
> with open(name + "/__init__.py", 'w') as f:
> f.write("X=1")
> f.flush()
>
> Please give me any advices or hints.
>
This wasn't your question, but you don't need to flu
On Thu, Jun 2, 2016 at 4:57 AM Anup reni wrote:
> i would like to transform this:
>
> -1 0-0.8 0.64 -0.36-0.4 0.16 -0.84
> 0.0 0 -1.00
> 0.4 0.16 -0.84
> 0.8 0.64 -0.36
>
> to something like this:
>
> x y result
> id1 -0.8 -10.642 -0.8 0 -0.363
On Thu, Jun 2, 2016 at 4:26 AM Lawrence D’Oliveiro
wrote:
> On Wednesday, June 1, 2016 at 8:02:14 AM UTC+12, Ben Finney wrote:
> > (Note that ‘__init__’ is not a constructor, because it operates on the
> > *already constructed* instance, and does not return anything.
>
> Believe it or not, that *
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