Re: Lies in education [was Re: The "loop and a half"]

On 10/5/17, Steve D'Aprano wrote: > The A and E in the word "are" are not vowels, since they are silent. Interesting! :) Is then R (half?) silent in word "Brazil"? -- https://mail.python.org/mailman/listinfo/python-list

Re: Creating a Dictionary

On 10/5/17, Chris Angelico wrote: > On Thu, Oct 5, 2017 at 12:24 PM, Stefan Ram wrote: >> One might wish to implement a small language with these commands: >> >> F - move forward >> B - move backward >> L - larger stepsize >> S - smaller stepsize >>

Re: Line terminators in Python?

On 9/29/17, Rob Gaddi wrote: > On 09/29/2017 10:54 AM, Stefan Ram wrote: >>In some languages, printing »'\n'«, the Unicode code point 10, >>will have the effect of printing a line terminator, which might >>mean that the output device actually

Re: How to share class relationship representations?

On 9/23/17, Stephan Houben <stephan...@gmail.com.invalid> wrote: > Op 2017-09-22, Pavol Lisy schreef <pavol.l...@gmail.com>: >> On 9/19/17, leam hall <leamh...@gmail.com> wrote: >>> I'm working on designing the classes, sub-classes, and relationships in >&g

Re: what is happening in panda "where" clause

On 9/22/17, Peter Otten <__pete...@web.de> wrote: > Exposito, Pedro (RIS-MDW) wrote: > >> This code does a "where" clause on a panda data frame... >> >> Code: >> import pandas as pd; >> col_names = ['Name', 'Age', 'Weight', "Education"]; >> # create panda dataframe >> x = pd.read_csv('test.dat',

Re: How to share class relationship representations?

On 9/19/17, leam hall wrote: > I'm working on designing the classes, sub-classes, and relationships in my > code. What is a good visual way to represent it so it can be stored in git > and shared on the list without large images or attachments? > > Thanks! > > Leam

Re: Convert pandas series to string and datetime object

On 9/21/17, Peter Otten <__pete...@web.de> wrote: > zljubi...@gmail.com wrote: > >> I have sliced the pandas dataframe >> >> end_date = df[-1:]['end'] >> >> type(end_date) >> Out[4]: pandas.core.series.Series >> >> end_date >> Out[3]: >> 48173 2017-09-20 04:47:59 >> Name: end, dtype:

Re: iPython ? magic

On 9/21/17, Steve D'Aprano wrote: > In the iPython interactive interpreter, obj? prints information about the > given > object. For example: > > > In [11]: None? > Type: NoneType > Base Class: > String Form:None > Namespace: Python builtin > Docstring: > > >

Re: Old Man Yells At Cloud

On 9/20/17, Steve D'Aprano <steve+pyt...@pearwood.info> wrote: > On Wed, 20 Sep 2017 02:55 pm, Pavol Lisy wrote: Thanks Steve, I agree with most of your mail and really appreciate interesting reading! :) > (a) "you save one character (two keystrokes)"; and First I have

Re: Old Man Yells At Cloud

On 9/19/17, Steve D'Aprano wrote: [...] > The point is, we all make the occasional silly error. Doesn't mean we should > cripple our functions and fill the language with special cases like the > print > statement to avoid such rare errors. If print had always been a

Re: People choosing Python 3

On 9/11/17, Thomas Jollans wrote: > On 2017-09-10 09:05, INADA Naoki wrote: >> I saw encouraging tweet from Kenneth Reitz. >> >> https://twitter.com/kennethreitz/status/902028601893294081/photo/1 >> >> On Heroku, most people choose Python 3! >> I know, it's because Python 3 is the

Re: A question on modification of a list via a function invocation

On 9/8/17, Gregory Ewing wrote: > Steve D'Aprano wrote: >> A harder question is, what if you take a random number from the Integers? >> How >> many digits will it have in (say) base 10? I don't have a good answer to >> that. >> I think it may be ill-defined. > > I

Re: Case-insensitive string equality

On 9/3/17, Steve D'Aprano wrote: > On Sun, 3 Sep 2017 05:17 pm, Stephan Houben wrote: > >> Generally speaking, the more you learn about case normalization, >> the more attractive case sensitivity looks > > Just because something is hard doesn't mean its not worth

Re: Case-insensitive string equality

On 9/2/17 at 4:21, Steve D'Aprano wrote: > If regular case-sensitive string comparisons don't support the locale, why > should case-insensitive comparisons be required to? I think that Chris answered very good before: On 9/2/17 at 2:53 AM, Chris Angelico

Re: If you are running 32-bit 3.6 on Windows, please test this

On 9/2/17, eryk sun wrote: > On Fri, Sep 1, 2017 at 3:23 AM, Peter Otten <__pete...@web.de> wrote: >> >> I think you have to specify the types yourself: >> > import ctypes > libm = ctypes.cdll.LoadLibrary("libm.so") > libm.sqrt(42) >> 0 > libm.sqrt.argtypes =

Re: If you are running 32-bit 3.6 on Windows, please test this

On 8/31/17, 20/20 Lab <l...@2020fresno.com> wrote: > > > On 08/31/2017 01:53 AM, Pavol Lisy wrote: [...] > Valid point, fired up a windows 10 machine and worked as well. > > Python 3.6.2 (v3.6.2:5fd33b5, Jul 8 2017, 04:14:34) [MSC v.1900 32 bit > (Intel)] on win32 &

Re: Case-insensitive string equality

On 8/31/17, Steve D'Aprano wrote: >> Additionally: a proper "case insensitive comparison" should almost >> certainly start with a Unicode normalization. But should it be NFC/NFD >> or NFKC/NFKD? IMO that's a good reason to leave it in the hands of the >> application.

Re: If you are running 32-bit 3.6 on Windows, please test this

On 8/31/17, Terry Reedy wrote: > On 8/30/2017 1:35 PM, Terry Reedy wrote: >> https://stackoverflow.com/questions/45965545/math-sqrt-domain-error-when-square-rooting-a-positive-number >> >> >> >> reports the following: >> - >> Microsoft Windows [Version 10.0.16251.1002] >>

Re: doctest random output?

On 8/28/17, Leam Hall wrote: > On 08/28/2017 11:40 AM, Dennis Lee Bieber wrote: > > ... a bunch of good stuff ... > > I'm (re-)learning python and just trying make sure my function works. > Not at the statistical or cryptographic level. :) > > Thanks! > > Leam > -- >

Re: Quiz: Difference between implicit and explicit inheritence

On 8/28/17, Steven D'Aprano wrote: > In Python 3, what's the difference between these two classes? > # implicitly inherit from object > class Spam: > ... > > # explicitly inherit from object > class Spam(object): > ... > > If you sense a trick

Re: Proposed new syntax

On 8/21/17, Chris Angelico wrote: > On Mon, Aug 21, 2017 at 12:19 PM, MRAB wrote: >> On 2017-08-21 03:00, Steve D'Aprano wrote: >>> >>> On Fri, 18 Aug 2017 04:55 pm, Marko Rauhamaa wrote: >>> Is a Python implementation allowed to

Re: Dataframe iterating question : 3 ways of calling a row and column

On 8/21/17, zach.sm...@orthofi.com wrote: > I wouldn't say I'm a Python noob, but I wouldn't say I'm a Python expert > either. I work in data science and use Pandas Dataframes a lot. My question > is regarding the difference in calling out a specific row, column >

Re: Proposed new syntax

On 8/17/17, Marko Rauhamaa <ma...@pacujo.net> wrote: > Pavol Lisy <pavol.l...@gmail.com>: > >> On 8/17/17, Gregory Ewing <greg.ew...@canterbury.ac.nz> wrote: >>> I don't agree that the word "for" necessarily implies proceduralness. >> >&g

Re: Proposed new syntax

On 8/17/17, Gregory Ewing wrote: > Steve D'Aprano wrote: >> If he wanted declarative semantics, why didn't he argue for declarative >> syntax >> like "select...where", instead of choosing procedural syntax which matches >> the >> actual procedural semantics given? > >

Re: Cross-language comparison: function map and similar

On 8/16/17, Steve D'Aprano wrote: > Over in another thread, we've been talking about comprehensions and their > similarities and differences from the functional map() operation. > > Reminder: > > map(chr, [65, 66, 67, 68]) > > will return ['A', 'B', 'C']. > > My

Re: Falsey Enums

On 7/28/17, Steve D'Aprano wrote: > On Fri, 28 Jul 2017 05:52 pm, Ethan Furman wrote: > >> class X(Enum): >> Falsey = 0 >> Truthy = 1 >> Fakey = 2 >> def __bool__(self): >> return bool(self.value) > > Thanks Ethan. BTW bool at enum seems

Re: Write this accumuator in a functional style

On 7/14/17, Steve D'Aprano wrote: > On Fri, 14 Jul 2017 09:06 am, Ned Batchelder wrote: > >> Steve's summary is qualitatively right, but a little off on the >> quantitative >> details. Lists don't resize to 2*N, they resize to ~1.125*N: >> >> new_allocated =

Re: Write this accumuator in a functional style

On 7/13/17, Steve D'Aprano <steve+pyt...@pearwood.info> wrote: > On Fri, 14 Jul 2017 12:59 am, Pavol Lisy wrote: > >> On 7/13/17, Steve D'Aprano <steve+pyt...@pearwood.info> wrote: >> >>> [1] Actually, CPython's lists initially quadruple the size of the a

Re: Write this accumuator in a functional style

On 7/13/17, Steve D'Aprano wrote: > [1] Actually, CPython's lists initially quadruple the size of the array, up > to a > certain point, and then switch to doubling. This ensures that small lists > have > even fewer expensive resizes, at the cost of wasting a bit more

Re: Compiling Python 3.6.1 on macOS 10.12.5

On 7/10/17, Nigel Palmer wrote: > Hi > > I am trying to compile Python 3.6.1 on macOS 10.12.5 with xcode 8.8.3 using > the instructions at > https://docs.python.org/devguide/setup.html#build-dependencies but I am > getting the error > > ./python.exe -E -S -m sysconfig

Re: Write this accumuator in a functional style

On 7/11/17, Steven D'Aprano wrote: > I have a colleague who is allergic to mutating data structures. Yeah, I > know, he needs to just HTFU but I thought I'd humour him. > > Suppose I have an iterator that yields named tuples: > > Parrot(colour='blue', species='Norwegian',

Re: ezdxf type of spline

It seems to be: http://pythonhosted.org/ezdxf/entities.html?highlight=spline#Spline -> https://knowledge.autodesk.com/support/autocad/learn-explore/caas/CloudHelp/cloudhelp/2015/ENU/AutoCAD-Core/files/GUID-58316136-30EB-499C-ACAD-31D0C653B2B2-htm.html ->

Re: Check Python version from inside script? Run Pythons script in v2 compatibility mode?

On 7/7/17, Steve D'Aprano wrote: > import sys > if sys.version_info >= (3,): # the comma is important > print("version 3") But be careful inside script! It could live long enough to see python4 :) -- https://mail.python.org/mailman/listinfo/python-list

Re: How to write raw strings to Python

On 7/5/17, Binary Boy wrote: > On Wed, 05 Jul 2017 20:37:38 +0300, Jussi Piitulainen wrote: >> Sam Chats writes: >> >> > On Wednesday, July 5, 2017 at 9:09:18 PM UTC+5:30, Grant Edwards wrote: >> >> On 2017-07-05, Sam Chats wrote: >> >> >> >> > I want to

Re: how to make this situation return this result?

On 7/1/17, Ho Yeung Lee wrote: > just want to compare tuples like index (0,1), (0,2), (1,2) without > duplicate > such as (2,0), (1,0) etc > > > On Saturday, July 1, 2017 at 7:00:17 PM UTC+8, Peter Otten wrote: >> Ho Yeung Lee wrote: >> >> > finally i searched

Re: DJANGO cannot import name _compare_digest

On 7/1/17, Thomas Jollans <t...@tjol.eu> wrote: > On 30/06/17 13:32, Pavol Lisy wrote: >> [snip] >> >> python 3.6.1 works as I expected >> >>>>> import logging as operator >>>>> from operator import _compare_digest as compare_di

Re: DJANGO cannot import name _compare_digest

On 6/28/17, Xristos Xristoou wrote: > i dont have 'operator.py' in my system only 'test_operator.py' and > 'fix_operator.py' > > if : > import sys > print sys.modules['operator'] > > i get this : > > that say me > > how to rename it? > -- >

Re: Converting epoch to string in format yyyy-mm-dd, or maybe it is not necessary

(I am not very familiar with panda too!) In case of his data he needs to set unit to 's' df['dt'] = pd.to_datetime(df.epoch,unit='s') It return utc time from epoch, so maybe this is what he could use -> df['dt'] = df.epoch.apply(time.ctime) or something like (if he needs strings) -> df['dt']

Re: ensurepip

$ python3 -m ensurepip /usr/bin/python3: No module named ensurepip But maybe this help to understand: $ python -m ensurepip ensurepip is disabled in Debian/Ubuntu for the system python. Python modules For the system python are usually handled by dpkg and apt-get. apt-get install python-

Re: Transitioning from Linux to Windows

If I understand well then you like to have simple quick solution without need to learn much. And that you don't need to support big traffic... Maybe cherrypy ( http://cherrypy.org/ ) is what you like to look at. Probably this is good enough on your ubuntu: sudo apt-get install

Re: Python DB API - commit() v. execute("commit transaction")?

On 5/31/17, Jon Ribbens <jon+use...@unequivocal.eu> wrote: > On 2017-05-31, Pavol Lisy <pavol.l...@gmail.com> wrote: >> But althoug return from execute is undefined ( >> https://www.python.org/dev/peps/pep-0249/#id16 ), you could iterate >> over cursor ( https:/

Re: Python DB API - commit() v. execute("commit transaction")?

On 5/31/17, Peter Otten <__pete...@web.de> wrote: > Jon Ribbens wrote: > >> On 2017-05-31, Skip Montanaro wrote: >>> I'm kind of stuck with the database API I have. ("Love the child you >>> have, not the one you wish you had?") Given that I have the choice to >>> execute

Re: Python not able to find package but it is installed

On 5/31/17, Dennis Lee Bieber wrote: > On Tue, 30 May 2017 19:27:48 + (UTC), Mahmood Naderan via Python-list > declaimed the following: > >># trying /usr/lib/python2.6/site-packages/openpyxl.so >># trying

Re: Python not able to find package but it is installed

What is output from $ pip ---version $ easy_install --version ? Maybe you have two pythons and only one pip? $ find /opt -name python $ find /usr -name python $ find /opt -name pip $ find /usr -name pip On 5/30/17, Mahmood Naderan via Python-list wrote: > Well yes.

Re: How to install Python package from source on Windows

On 5/15/17, Chris Angelico wrote: > Perhaps a future version of gcc will be implemented in Python. Would > you then say that Python is beholden to no one? You would still need > to have a C compiler installed in order to compile extension modules. > It's too big to include with

Re: help with an error msg please

On 5/14/17, Pavol Lisy <pavol.l...@gmail.com> wrote: > On 5/14/17, Charles T. Smith <cts.private.ya...@gmail.com> wrote: >> I'm stumped by this: > >> $ PYTHONPATH= python except >> Traceback (most recent call last): >> File "excep

Re: help with an error msg please

On 5/14/17, Charles T. Smith wrote: > I'm stumped by this: > $ PYTHONPATH= python except > Traceback (most recent call last): > File "except", line 7, in > except getopt.error, msg: > AttributeError: 'module' object has no attribute 'error' > > > The program

Re: Out of memory while reading excel file

On 5/11/17, Peter Otten <__pete...@web.de> wrote: > Mahmood Naderan via Python-list wrote: > >> Excuse me, I changed >> >> csv.writer(outstream) >> >> to >> >> csv.writer(outstream, delimiter =' ') >> >> >> It puts space between cells and omits "" around some content. > > If your data doesn't

Re: import docx error

On 5/11/17, Grant Edwards wrote: > On Wed, May 10, 2017 at 05:14:22PM -0700, somebody wrote: >> I have downloaded Anaconda to Cinnamon Mint 18.1 64 bit where Python >> 3.6 exists. >> >> It will not start up. > > The anaconda that I know about is the RedHat installer

Re: import docx error

On 5/10/17, Grant Edwards wrote: > On 2017-05-10, RRS1 via Python-list wrote: > >> I am very new to Python, have only done simple things >>>print("hello >> world") type things. I've really been looking forward to using Python. I >> bought

[issue30024] Treat `import a.b.c as m` as `m = sys.modules['a.b.c']`

Pavol Lisy added the comment: Maybe I am wrong but don't we get another weird behavior? import sys.path # this is error now ModuleNotFoundError: No module named 'sys.path'; 'sys' is not a package So we probably expect same behavior here: import sys.path as foo But if we just

Re: Program uses twice as much memory in Python 3.6 than in Python 3.5

On 3/30/17, INADA Naoki wrote: > Maybe, this commit make this regression. > > https://github.com/python/cpython/commit/4897300276d870f99459c82b937f0ac22450f0b6 > > Old: > minused = (so->used + other->used)*2 (L619) > > New: > minused = so->used + other->used (L620) >

Re: Program uses twice as much memory in Python 3.6 than in Python 3.5

On 3/29/17, Jan Gosmann wrote: > On 28 Mar 2017, at 14:21, INADA Naoki wrote: > >> On Wed, Mar 29, 2017 at 12:29 AM, Jan Gosmann >> wrote: >> >> I suppose smaller and faster benchmark is better to others looking for >> it. >> I already stopped the azure

Re: pandas dataframe, find duplicates and add suffix

On 3/28/17, zljubi...@gmail.com wrote: > In dataframe > > import pandas as pd > > data = {'model': ['first', 'first', 'second', 'second', 'second', 'third', > 'third'], > 'dtime': ['2017-01-01_112233', '2017-01-01_112234', > '2017-01-01_112234', '2017-01-01_112234',

Re: cross python version randomness

On 3/21/17, Kev Dwyer wrote: > Robin Becker wrote: > >> Is there a way to get the same sequences of random numbers in python 2.7 >> and python >= 3.3? >> >> I notice that this simple script produces different values in python 2.7 >> and >=3.3 >> >>

About linters and PEP-8

On 3/19/17, Chris Angelico <ros...@gmail.com> wrote: > On Sun, Mar 19, 2017 at 4:53 PM, Pavol Lisy <pavol.l...@gmail.com> wrote: >> In case of spaces there is not discrepancy. pep8 and similar linters >> could work fine without incompatible configurations. > I don'

Re: Who are the "spacists"?

On 3/19/17, Pavol Lisy <pavol.l...@gmail.com> wrote: > On 3/18/17, Nathan Ernst <nathan.er...@gmail.com> wrote: > PS. I am "spacist" :P but I feel this a little more aggressive than is > necessary too: > >> Feel free to start your own discussion fo

Re: Who are the "spacists"?

On 3/18/17, Nathan Ernst wrote: > My issue with using spaces instead of tabs, is that, as mentioned earlier > in the thread, everyone has their own preferences on indentation. I've > worked on teams where different developers used 2, 3 & 4 spaces as > indentation.

Re: python-libxdo?

On 2/28/17, Jim wrote: simplified: > from xdo import Xdo > xdo = Xdo() > win = xdo.search_windows(winname = 'Mozilla Firefox') > File "/home/jfb/EVs/env/lib/python3.5/site-packages/xdo/__init__.py" > TypeError: bytes or integer address expected instead of str instance

Re: panda, column access

On 2/27/17, Andrew Zyman wrote: > Hello, > i'm trying to understand what is the difference between the below code. > And how do i access the column's data without hardcoding the column name in > such a way that i'll be able to convert it's values into the list of > strings? >

Re: Spyder 3.1.3 update

On 2/24/17, Pablo Lozano wrote: > Good day, > > I installed the Spyder 3.6 IDE from the Anaconda package and at the start k > to the IDE I get the Spyder Update saying Spyder 3.1.3 is available. Did it > incorrectly install Anaconda? As far as I know Spyder 3.1.3 is rather

Re: Namedtuples problem

On 2/23/17, Peter Otten <__pete...@web.de> wrote: > Peter Otten wrote: > >> Functions to the rescue: > > On second thought this was still more code than necessary. If we are talking about less code than necessary then probably we could use something from python's ecosystem... >>> import pandas

Re: python decorator

On 2/22/17, Steve D'Aprano wrote: > On Wed, 22 Feb 2017 08:47 pm, Cecil Westerhof wrote: > >> On Wednesday 22 Feb 2017 08:49 CET, Argentinian Black ops lll wrote: >> >>> *** SOLVED *** >> >> It would be nice if you shared the solution. > > I believe Cameron's post

Re: Python application launcher (for Python code)

On 2/21/17, Deborah Swanson wrote: > Chris Angelico wrote, on February 21, 2017 7:30 AM >> >> On Wed, Feb 22, 2017 at 2:16 AM, Deborah Swanson >> wrote: >> > Really? We used software called Powershell a couple decades ago in >> > the 90s, as

Re: Create ordering of points

On 2/15/17, spiess.benjamin--- via Python-list wrote: > Hello !:) > I've got a problem which I would really like to solve. > I got a cloud of points (in the simplest example its a 2-dimensional cloud > of points). > First, I want to set one of the points as the initial (or

Re: Coding issue with XML for word document

On 2/7/17, Steven D'Aprano wrote: > On Mon, 06 Feb 2017 17:00:25 -0800, accessnewbie wrote: [...] >> But when I try to bold, it bombs. It does not seem to like either of >> these (+ myText + "") (separately or together) appended on the >> end. > > How are you trying to bold?

Re: best way to ensure './' is at beginning of sys.path?

On 2/6/17, Chris Angelico wrote: > On Mon, Feb 6, 2017 at 1:19 PM, Steve D'Aprano > wrote: [...] >> How about graphic and video designers? Just how well does hg cope with >> gigabytes of video data? > > I've no idea, but I know that git can handle