Re: How to terminate the function that runs every n seconds

eout occurs." The benefit is that setting the flag terminates the loop straight away, as opposed to waiting for the sleep to finish. I can show some sample code if anyone is interested. Frank Millman -- https://mail.python.org/mailman/listinfo/python-list

Re: How to change the number into the same expression's string and vice versa?

1:c0e311e010fc, May 18 2014, 10:38:22) [MSC v.1600 32 bit (Intel)] on win32 Type "help", "copyright", "credits" or "license" for more information. >>> a1 = 0xf4 >>> a1 244 >>> b1 = '0x{:x}'.format(a1) >>> b1 &

CSV and number formats

ndard way of parsing it? If not, I will have to special-case it, but I would prefer to avoid that if possible. Thanks Frank Millman -- https://mail.python.org/mailman/listinfo/python-list

Re: Bad text appearance in IDLE

ething seems to have gone wrong with the system font. I don't use IDLE, but I use OutlookExpress and Textpad, and they both show a similar effect. I can live with it for now. I am hoping (with fingers crossed) that enough people will complain to Microsoft that they will issue a fix shortly. F

sqlite3 and dates

eturn a date object - >>> cur.execute('SELECT CAST(? AS DATE)', ('2015-03-31',)) >>> cur.fetchone() (2015,) >>> I don't know how easy this would be to implement, but it would be nice if it could be made to work. Is it worth filing a feature request? Frank Millman -- https://mail.python.org/mailman/listinfo/python-list

Re: sqlite3 and dates

"Chris Angelico" wrote in message news:CAPTjJmrB+55CVgN6zTUawRf=rzn9ltavi5tzhjsyvhhywk1...@mail.gmail.com... > On Wed, Feb 18, 2015 at 5:19 PM, Frank Millman wrote: >> However, the following does not return a date object - >> >>>>> cur.execut

Re: sqlite3 and dates

"Mark Lawrence" wrote in message news:mc1g3n$q8j$1...@ger.gmane.org... > On 18/02/2015 06:19, Frank Millman wrote: >> Hi all >> >> sqlite3 does not have a DATE type, but the python module does a pretty >> good >> job of providing one - >> >&g

Re: Design thought for callbacks

are no longer alive, they are automatically removed from the WeakSet, preventing me from accidentally calling them when they are dead." I found that the reference was not removed immediately, but was waiting to be garbage collected. During that window, I could call the callback, which resul

Re: Design thought for callbacks

"Steven D'Aprano" wrote in message news:54e8af1b$0$12976$c3e8da3$54964...@news.astraweb.com... > Frank Millman wrote: > >> I tried something similar a while ago, and I did find a gotcha. >> >> The problem lies in this phrase - "if they are no longer a

Re: Design thought for callbacks

"Cem Karan" wrote in message news:a3c11a70-5846-4915-bb26-b23793b65...@gmail.com... > > > Good questions! That was why I was asking about 'gotchas' with WeakSets > originally. Honestly, the only way to know for sure would be to write two > APIs for doing similar things, and then see how peop

Re: decimal numbers

thon3 to return a float - >>> 10/3 3.3335 You can reproduce the python3 behaviour in python2 by adding a 'future' directive - >>> from __future__ import division >>> 10/3 3.3335 HTH Frank Millman -- https://mail.python.org/mailman/listinfo/python-list

Re: decimal numbers

"Luke Geelen" wrote in message news:ae0da085-6c41-4166-92d2-92611a990...@googlegroups.com... > Op zaterdag 15 februari 2014 11:04:17 UTC+1 schreef Frank Millman: >> "Luke Geelen" wrote in message >> >> news:ec88852e-1384-4aa5-834b-85135be94...@g

Re: decimal numbers

"Frank Millman" wrote in message news:ldngnf$c3r$1...@ger.gmane.org... > > "Luke Geelen" wrote in message > news:ae0da085-6c41-4166-92d2-92611a990...@googlegroups.com... >> Op zaterdag 15 februari 2014 11:04:17 UTC+1 schreef Frank Millman:

Deepcopying a byte string is quicker than copying it - problem?

oop C:\>python -m timeit -s "import copy" "copy.deepcopy(b'a'*1000)" 10 loops, best of 3: 11.7 usec per loop As you can see, deepcopying a string is slightly slower than copying it. However, deepcopying a byte string is orders of magnitude quicker than copying

Re: Strange behavior with sort()

box.sort() sorts box 'in situ', but does not return anything. That is why the second example prints None. In your second example, you are comparing the return value of box.sort() with [1, 2, 3]. As the return value is None, they are unequal. HTH Frank Millman -- https://mail.python.org/mailman/listinfo/python-list

Re: Deepcopying a byte string is quicker than copying it - problem?

"Frank Millman" wrote in message news:lemm11$18r$1...@ger.gmane.org... > Hi all > > I noticed this a little while ago, but dismissed it as a curiosity. On > reflection, I decided to mention it here in case it indicates a problem. > > This is with python 3.3.2.

Re: Mac vs. Linux for Python Development

and python 3.3.2. I have just booted it up now, called up a command prompt, typed 'python' to start the interpreter, and typed 'import decimal'. The interpreter prompt re-appeared in the blink of an eye. Are you talking about something else? Frank Millman -- https://mail.python.org/mailman/listinfo/python-list

Re: Mac vs. Linux for Python Development

"Chris Angelico" wrote in message news:CAPTjJmrmJjiGMfqui=PpJco7LjtqVpUjj=xnmtybyqemxg3...@mail.gmail.com... > On Sun, Mar 2, 2014 at 4:51 PM, Frank Millman wrote: >> Which version are you talking about? >> >> I have an old, slow box running Windows Server 2003

Question about Source Control

ny machine? Any hints will be appreciated. Frank Millman -- https://mail.python.org/mailman/listinfo/python-list

Re: Question about Source Control

"Chris Angelico" wrote in message news:CAPTjJmqPca5cnNWu8T5BZhpH665X0=mrf7bjalqvrqvmjzw...@mail.gmail.com... > On Tue, Mar 18, 2014 at 12:06 AM, Frank Millman > wrote: [...] >> >> So where should I install the SCM, and how should I set it up so that I >> can

Re: Question about Source Control

"Chris Angelico" wrote in message news:captjjmqhxh2m3-qgbelv_akgajzmeymbudly8_dkpnhrpsu...@mail.gmail.com... > On Tue, Mar 18, 2014 at 4:39 PM, Frank Millman wrote: >> Two quick questions - >> >> 1. At present the source code is kept on one machine (A), but on

Re: Question about Source Control

"Andriy Kornatskyy" wrote in message news:blu0-smtp953c8572b5ca6374830e5091...@phx.gbl... > Frank, > > I would suggest start with an account on https://bitbucket.org. It > supports private repositories so you should be good there. > > From other hand you can setup own infrastructure for SCM, re

Re: Question about Source Control

"Ben Finney" wrote in message news:85y508roiw@benfinney.id.au... > "Frank Millman" writes: > >> I feel that I have just not grasped the basics yet, so any assistance >> that >> puts me on the right path is appreciated. > > Here is &qu

Re: Question about Source Control

"Frank Millman" wrote in message news:lg6s09$irl$1...@ger.gmane.org... > Hi all > > I know I *should* be using a Source Control Management system, but at > present I am not. I tried to set up Mercurial a couple of years ago, but I > think I set it up wrongly, as

Re: Question about Source Control

"Frank Millman" wrote in message news:lgbe6g$j9o$1...@ger.gmane.org... > > > To recap my basic setup, I have machine A which holds the source > directory, machine B which is used to edit the program, and machines B and > C which are both used to run the program. >

Re: Question about Source Control

"Cameron Simpson" wrote in message news:20140321013313.ga58...@cskk.homeip.net... > > Someone intending to clone the project and develop will probably > want the whole repository; as Gregory says - they can then easily > push/pull with others. > > For Frank, the size of the repo is not the size

Re: Question about Source Control

"Rustom Mody" wrote in message news:19d3ddc9-0fb9-476d-a117-e5f174eca...@googlegroups.com... > On Monday, March 17, 2014 6:36:33 PM UTC+5:30, Frank Millman wrote: >> Hi all > >> I know I *should* be using a Source Control Management system, but at >> p

Gauteng Usergroup Meeting

would mention it here in case others are equally unaware. Frank Millman -- https://mail.python.org/mailman/listinfo/python-list

Re: Keeping track of things with dictionaries

fault('a', get_value('xyz')) getting value xyz 'xyzxyz' >>> my_dict.setdefault('a', get_value('abc')) getting value abc 'xyzxyz' >>> my_dict {'a': 'xyzxyz'} >>> It seems odd. Is there a situation where this behaviour is useful? Frank Millman -- https://mail.python.org/mailman/listinfo/python-list

Re: Keeping track of things with dictionaries

"Chris Angelico" wrote in message news:captjjmpk-rqx0fp6_4vxyus2z34vc5fq_qntj+q9+kn8y5u...@mail.gmail.com... > On Tue, Apr 8, 2014 at 5:14 PM, Frank Millman wrote: >> It appears that when you use 'setdefault', the default is always >> evaluated, >> e

Re: Keeping track of things with dictionaries

"Ian Kelly" wrote in message news:CALwzidmP5Bevbace9GyQrVXe-_2T=jtpq1yvapsaepvomqe...@mail.gmail.com... > On Tue, Apr 8, 2014 at 1:14 AM, Frank Millman wrote: >> >> It appears that when you use 'setdefault', the default is always >> evaluated, >>

Re: Keeping track of things with dictionaries

"Chris Angelico" wrote in message news:CAPTjJmoRxEhX02ZviHiLO+qi+dD+81smbGGYcPECpHb5E=p4=a...@mail.gmail.com... > On Tue, Apr 8, 2014 at 6:26 PM, Frank Millman wrote: >>> words_by_length = {} >>> for word in open("/usr/share/dict/words"): >>>

Re: Keeping track of things with dictionaries

"Chris Angelico" wrote in message news:captjjmppaqmb6no7udddadqg_jv9yz0sn4d70kasksbwwr3...@mail.gmail.com... > On Tue, Apr 8, 2014 at 7:28 PM, Frank Millman wrote: >> Are you saying that >> >> all([len(word) == 23 for word in words_by_length[23]]) # hope I g

Re: threading

that a response is returned quickly (however one defines quickly) but I cannot guarantee it if the database server is under stress. Is this a good candidate for async, or not? Thanks for any insights. Frank Millman -- https://mail.python.org/mailman/listinfo/python-list

Re: threading

"Chris Angelico" wrote in message news:captjjmqwhb8o8vq84mmtv+-rkc3ff1aqdxe5cs8y5gy02kh...@mail.gmail.com... > On Wed, Apr 9, 2014 at 11:23 PM, Frank Millman wrote: > >> How does one distinguish betwen 'blocking' and 'non-blocking'? Is it >> e

Re: threading

"Marko Rauhamaa" wrote in message news:87lhveobeq@elektro.pacujo.net... > "Frank Millman" : > >> I understand that, if one uses threading, each thread *can* block >> without affecting other threads, whereas if one uses the async >> approach, a re

Re: threading

"Chris Angelico" wrote in message news:CAPTjJmq2xx_WG2ymCC0NNqisDO=dnnjhnegpid3de+xeiy5...@mail.gmail.com... > On Thu, Apr 10, 2014 at 12:30 AM, Frank Millman > wrote: >> >>> >>>> How does one distinguish betwen 'blocking' and 'no

Re: threading

"Chris Angelico" wrote in message news:CAPTjJmoWaHPZk=DAxbfJ=9ez2aj=4yf2c8wmbryof5vgn6e...@mail.gmail.com... > On Thu, Apr 10, 2014 at 7:17 PM, Frank Millman wrote: >> The current version of my program uses HTTP. As I understand it, a client >> makes a connection a

Re: Strange syntax error, occurs only when script is executed directly

w the shell interprets the '#!' line. My editor allows me to re-save a file using a different format, so I saved it as 'unix', reran it, and it worked. HTH Frank Millman -- https://mail.python.org/mailman/listinfo/python-list

Re: Unicode in Python

gt; give the illusion they are properly working. > It is quite frustrating when you make these statements without explaining what you mean by 'not working'. It would be really useful if you could spell out - 1. what you did 2. what you expected to happen 3. what actual

Re: Python and Math

rk, but when I ran 'ipython notebook' it failed on 'import pyzmq'. I ran 'pip install pyzmq', tried again, and it failed on 'import jinja2'. I used pip to install that, then it failed on 'import tornado'. I used pip to install that, and now it

Re: Python and Math

wrote in message news:281f5806-8793-4fd2-877c-214927dda...@googlegroups.com... > > pip looked and saw that you already had it, so did nothing -- what did it > report? In this caes: > > 'pip install -U ipython[notebook]' > > might have worked: -U means upgrade even if I already have it. > Indee

Re: Benefits of asyncio

x27;, and for every potentially blocking request, grab a connection, set up a callback or a 'yield from' to wait for the response, and unblock. Provided the requests return quickly, I would have thought a hundred database connections could support thousands of users. Frank Millman -- https://mail.python.org/mailman/listinfo/python-list

Re: Problem with psycopg2, bytea, and memoryview

"Neil Cerutti" wrote in message news:b5sk3cfkiq...@mid.individual.net... > On 2013-07-31, Frank Millman wrote: >> >> >> Can anyone explain *why* the results do not compare equal? If I >> understood the problem, I might be able to find a workaround. &

Re: Problem with psycopg2, bytea, and memoryview

"Terry Reedy" wrote in message news:ktbj9i$4au$1...@ger.gmane.org... > On 7/31/2013 9:07 AM, Antoine Pitrou wrote: >> >> I would suggest asking the psycopg2 project why they made this choice, >> and >> if they would reconsider. Returning a memoryview doesn't make much sense >> IMHO. > > I agre

Re: I am never going to complain about Python again

s to the same type, the triple form does not. '1' == 1 returns true '1' === 1 returns false The moment I discovered this, I changed all my operators from the double form to the triple form. Now I no longer have surprises of this nature. Frank Millman -- https://mail.python.org/mailman/listinfo/python-list

Re: I am never going to complain about Python again

"MRAB" wrote in message news:52568b30.8040...@mrabarnett.plus.com... > On 10/10/2013 09:23, Frank Millman wrote: >> >> "Steven D'Aprano" wrote in message >> news:52562ee3$0$2931$c3e8da3$76491...@news.astraweb.com... >>> Just came across t

Python in The Economist

Python. Here is a link to the full article - http://www.economist.com/news/business/21644150-battle-software-talent-other-industries-can-learn-silicon-valley-how-bag Frank Millman -- https://mail.python.org/mailman/listinfo/python-list

Question about importlib

me timing tests, and the overhead does indeed seem to be minimal - 0.0001 sec on a slow desktop machine. I think it is still worth posting, for any insights into either question. Thanks Frank Millman -- https://mail.python.org/mailman/listinfo/python-list

Re: Question about importlib

"Chris Angelico" wrote in message news:CAPTjJmrXp4MSO9f=xb_brupnrz7xrksktkbfvo-e5n7lr_m...@mail.gmail.com... > On Sun, Mar 8, 2015 at 6:30 PM, Frank Millman wrote: >> Actually, as I write this, I realise that there is a more important >> question >> that had not

Re: I want to get involved with Python!

ve a look through the archives. Both groups organise monthly meetings - a good opportunity to mix with other Python developers. Frank Millman -- https://mail.python.org/mailman/listinfo/python-list

Dict comprehensions - improvement to docs?

t the Library Reference should be updated to include dict comprehensions. Just checking here first before I raise a Documentation issue. Frank Millman -- https://mail.python.org/mailman/listinfo/python-list

Re: Dict comprehensions - improvement to docs?

"Ian Kelly" wrote in message news:CALwzidnTUifj_L=DSH_8s+z0L44pxVvdpG1+pfz1Tzm=ect...@mail.gmail.com... > On Sun, Mar 15, 2015 at 11:25 PM, Frank Millman > wrote: >> Hi all >> >> I like dict comprehensions, but I don't use them very often, so when I

Re: Dict comprehensions - improvement to docs?

"Paul Rubin" wrote in message news:87fv95fom0@jester.gateway.sonic.net... > "Frank Millman" writes: >> I like dict comprehensions, but I don't use them very often, so when I do >> I >> need to look up the format. > > I never felt a need

Re: Dict comprehensions - improvement to docs?

"Terry Reedy" wrote in message news:me644f$bqj$1...@ger.gmane.org... > > Given that list comprehensions are mentioned in the library reference, I > agree that set and dict comprehensions should be also. Open an issue on > the tracker pointing to the list entry. > > http://bugs.python.org/iss

Re: Dict comprehensions - improvement to docs?

"Paul Rubin" wrote in message news:87wq2hfibu@jester.gateway.sonic.net... > "Frank Millman" writes: >> dict((a, b) for a, b in zip(x, y)) >> 10 loops, best of 3: 16.1 usec per loop >> {a: b for a, b in zip(x, y)}" >> 10 loo

Re: Dict comprehensions - improvement to docs?

"Ian Kelly" wrote in message news:CALwzid=u19ymkfjbhblzi1qh2u9uk4ohy5wco1zo-i3t5at...@mail.gmail.com... > On Mon, Mar 16, 2015 at 3:01 AM, Frank Millman wrote: >> C:\>python -m timeit -s "x = range(65, 91); y = (chr(z) for z in x)" >> "dict(zip(x, y))

Re: Dict comprehensions - improvement to docs?

"Ian Kelly" wrote in message news:CALwzidmNDcSvER7S6inEaVZA=DHUrDX1KzL-WRVwhd=o3_l...@mail.gmail.com... > On Tue, Mar 17, 2015 at 12:44 AM, Frank Millman > wrote: >> Thanks for the explanation. I'll try not to make that mistake again. >> >> However, to g

Re: Sudoku solver

less than a second. It could not solve Marko's second one, returning "impossible" immediately. Here is another one that does not use python, but uses SQL - https://www.sqlite.org/lang_with.html You will find it at the bottom of the page, under the heading "Outlandish Recu

Re: Sudoku solver

"Marko Rauhamaa" wrote in message news:87fv8sndw1@elektro.pacujo.net... > "Frank Millman" : > >> Here is another python-based sudoku solver - >> >> http://www.ics.uci.edu/~eppstein/PADS/Sudoku.py >> >>>From its docstring - >&g

Re: Sudoku solver

"Dave Angel" wrote in message news:551557b3.5090...@davea.name... > > But now I have to disagree about "true Sudoku puzzle." As we said > earlier, it might make sense to say that puzzles that cannot be solved > that way are not reasonable ones to put in a human Sudoku book. But why > isn't

Is this unpythonic?

ot; it looks wrong because I have been conditioned to think of it as a gotcha. Would it be more pythonic to change them all to use the alternative "z=None", or is it ok to leave it as it is? Or to phrase it differently, how would an experienced pythonista react on seeing this when rev

Re: Is this unpythonic?

"Steven D'Aprano" wrote in message news:554c8b0a$0$12992$c3e8da3$54964...@news.astraweb.com... > On Fri, 8 May 2015 06:01 pm, Frank Millman wrote: > >> Hi all >> [...] >> >> However, every time I look at my own code, and I see "def x(y, z=[

Re: Is this unpythonic?

"Ben Finney" wrote in message news:85y4kzb90f@benfinney.id.au... > "Frank Millman" writes: > >> If I use a list as an argument, I only use it to pass values *into* >> the function, but I never modify the list. > > You've had good reas

Re: Is this unpythonic?

"Dave Angel" wrote in message news:554ca652.1000...@davea.name... > On 05/08/2015 06:53 AM, Frank Millman wrote: >> > > It might be appropriate to define the list at top-level, as > > EMPTY_LIST=[] > > and in your default argument as > def x(y,

Re: Is this unpythonic?

"Steven D'Aprano" wrote in message news:554cd119$0$12977$c3e8da3$54964...@news.astraweb.com... > On Fri, 8 May 2015 08:53 pm, Frank Millman wrote: > >>> Does z have to be a list? Could you use an empty tuple instead? >>> >>> def x(y, z=()):

Re: Is this unpythonic?

"Frank Millman" wrote in message news:mik7j6$59n$1...@ger.gmane.org... > > "Steven D'Aprano" wrote in message > news:554cd119$0$12977$c3e8da3$54964...@news.astraweb.com... >> On Fri, 8 May 2015 08:53 pm, Frank Millman wrote: >> >>>&

Re: Is this unpythonic?

"Gregory Ewing" wrote in message news:cr5sc6fgfm...@mid.individual.net... > Frank Millman wrote: > > The absolutely clearest way to write it would > probably be > >def f(things = None): > "things is a mapping of stuff to be operated on" >

Re: Is this unpythonic?

"Johannes Bauer" wrote in message news:min3f0$2gh$1...@news.albasani.net... On 08.05.2015 14:04, Dave Angel wrote: > > It might be appropriate to define the list at top-level, as > > > > EMPTY_LIST=[] > > > > and in your default argument as > > def x(y, z=EMPTY_LIST): > > > > and with the a

Re: Is this unpythonic?

"Johannes Bauer" wrote in message news:min9t3$e56$1...@news.albasani.net... On 10.05.2015 10:58, Frank Millman wrote: > > It is then a simple extra step to say - > > > > EMPTY_L:IST = () > > > > and if required - > > > > EMPTY_DICT = () >

Re: Slightly OT: Seeking (python-based) project diary tool, or framework to write one

tes and more." There seems to be at least some overlap with your requirements, so it may be worth a look. It uses wxPython. According to their download page it only works with Python 2.x, but as wxPython for Python3 is getting closer, hopefully it is on their roadmap to target P

Re: Argument Presence Checking via Identity or Boolean Operation?

self.arg = arg or [] Based on your comment, I have changed it to - def __init__(self, arg=None): self.arg = [] if arg is None else arg Does this pass your 'stop and consider' test? Frank Millman -- https://mail.python.org/mailman/listinfo/python-list

Data integrity problem with sqlite3

o mimic all of this. I will persevere, but in the meantime, does anyone happen to know under what other circumstances sqlite3 might issue an implicit commit? Thanks Frank Millman -- https://mail.python.org/mailman/listinfo/python-list

Re: Data integrity problem with sqlite3

"Chris Angelico" wrote in message news:CAPTjJmrHmj2bsdSm4CQ=orgxutmyctk3w3e3n-qxolg2tvq...@mail.gmail.com... On Tue, Aug 11, 2015 at 9:33 PM, Frank Millman wrote: > I have added 'set_trace_callback' to see exactly what is going on, and > in > the middle of my

Re: Data integrity problem with sqlite3 - solved

"Frank Millman" wrote in message news:mqcmie$po9$1...@ger.gmane.org... Hi all I have a 'data integrity' problem with sqlite3 that I have been battling with for a while. I have not got to the bottom of it yet but I do have some useful info, so I thought I would post it h

Re: Data integrity problem with sqlite3 - solved

"Frank Millman" wrote in message news:mqcslv$tee$1...@ger.gmane.org... "Frank Millman" wrote in message news:mqcmie$po9$1...@ger.gmane.org... > Hi all > > I have a 'data integrity' problem with sqlite3 that I have been battling > with for a while.

Re: How to model government organization hierarchies so that the list can expand and compress

the gui that you choose. Most gui toolkits will have a 'tree' widget, and hopefully make it easy to implement 'drag-and-drop' between the nodes. Then your task becomes one of getting the data out of the database and into the gui, and back again. Once you get used to the concepts

Re: How to model government organization hierarchies so that the list can expand and compress

"Alex Glaros" wrote in message news:ae4e203d-c664-4388-af0b-41c41d5ec...@googlegroups.com... Frank, thanks for describing the terminology of what I'm trying to do. 1. Do the recursive join Postgres examples you linked to, use a data structure where the child has the adjoining parent-ID? Exam

Question about import

and then just use 'import package_name' inside each module? Another question - I thought that, because aa.py and bb.py are in different sub-directories, I would have to set them up as packages by adding '__init__.py' to each one, but it works fine without that. What am I m

Re: Question about import

"Ian Kelly" wrote in message news:calwzidm3khnagtt0ohveo5bhqk1tfejbuuuinw9tnuxrpnr...@mail.gmail.com... On Thu, Sep 10, 2015 at 1:12 AM, Frank Millman wrote: > That makes me wonder if, in my project, I can import all modules inside > 'start.py', and then just use &#

Re: Using pipe in a system call

t;SELECT spreekwoord " "FROM spreekwoorden " "ORDER BY spreekwoord COLLATE LOCALIZED" ) To my eye, the result is nicer, at virtually no extra effort. Just don't forget the trailing space on all but the last line. Frank Millman -- https://mail.python.org/mailman/listinfo/python-list

Re: Traceback error

back (most recent call last): File "python", line 1, in NameError: name 'j' is not defined Any ideas how to debug this ? It looks to me as if the error is right there on the first line. What is that 'j' doing there? It looks like a typo. HTH Frank Mill

Re: *= operator

be rewritten as x = x + 1 to achieve a similar, but not exactly equal effect. In the augmented version, x is only evaluated once. Also, when possible, the actual operation is performed in-place, meaning that rather than creating a new object and assigning that to the target, the old object is modified instead." Frank Millman -- https://mail.python.org/mailman/listinfo/python-list

Re: print("%.2f" % total)

ormat(), your example would look like this - print('{:.2f}'.format(total)) Another word of warning. Using a format specifier displays the value nicely rounded to a number of decimal places, but the original value is unchanged. Use the interpreter to see what the actual value is. For

asyncio - how to stop loop?

ettings\frank\aib\aib_async\test_async.py", line 29, in loop.run_forever() File "C:\Python34\lib\asyncio\base_events.py", line 184, in run_forever self._run_once() File "C:\Python34\lib\asyncio\base_events.py", line 795, in _run_once event_list = self._sele

Re: asyncio - how to stop loop?

"Ian Kelly" wrote in message news:CALwzidnv07Wba9WJ=nuc0_v4mvudyaxwh6bgjvw0o1hf3oo...@mail.gmail.com... > On Wed, Jun 11, 2014 at 1:19 AM, Frank Millman wrote: >> First attempt - same as before >> >> loop = asyncio.get_event_loop() >> threading.

Question about asyncio

yself I would like to know if this feels like the right approach. Thanks Frank Millman -- https://mail.python.org/mailman/listinfo/python-list

Re: Question about asyncio

"Ian Kelly" wrote in message news:CALwzidmzG_WA5shw+PS4Y976M4DVTOwE=zb+kurvcpj3n+5...@mail.gmail.com... > On Fri, Jun 13, 2014 at 5:42 AM, Frank Millman wrote: >> Now I want to use the functionality of asyncio by using a 'yield from' to >> suspend th

Re: Python 3 is killing Python

their lives made much easier by the changes to Python3 - a 'silent majority'? I don't mean an absolute majority, as I believe there are still more Python2 users than Python3. But of those who have made the switch from 2 to 3, maybe most of them are quite happy. If so, then the

Re: Python 3 is killing Python

Python 2.7 as an alternative to b'', to faciliate writing code that works on both versions. There would be a lot of overlap with b'...', but the differences could be documented. Methods could be added to B'' to replicate any behaviour of b'' which ha

Re: Python 3 is killing Python

"Chris Angelico" wrote in message news:CAPTjJmr4nPA6euD-j2uNAN==h=ids1o5bdhgj0fnjkjo9wf...@mail.gmail.com... > On Thu, Jul 17, 2014 at 12:27 AM, Frank Millman > wrote: > >> Unfortunately, human nature being what it is, the possibility of this >> split >>

Re: Python 3 is killing Python

"Chris Angelico" wrote in message news:captjjmot9q2cuyy5jc6keycxyp8_usjhr1y8e+z+t70qnc5...@mail.gmail.com... > On Thu, Jul 17, 2014 at 4:31 PM, Frank Millman wrote: >> It is worth watching this - >> https://www.youtube.com/watch?v=skYBOXE02OQ > > Not in a po

Unicode, stdout, and stderr

ng to stdout and writing to stderr. My questions are - 1. What is the difference? 2. Is there an easy way to get stdout to behave the same as stderr? Thanks Frank Millman -- https://mail.python.org/mailman/listinfo/python-list

Re: Unicode, stdout, and stderr

"Lele Gaifax" wrote in message news:87lhrl28ie.fsf@nautilus.nautilus... > "Frank Millman" writes: > >> Python 3.4.1 (v3.4.1:c0e311e010fc, May 18 2014, 10:38:22) [MSC v.1600 32 >> bit >> (In >> tel)] on win32 >> Type "help",

Re: Unicode, stdout, and stderr

"Steven D'Aprano" wrote in message news:53ce0b96$0$29897$c3e8da3$54964...@news.astraweb.com... > On Tue, 22 Jul 2014 08:18:08 +0200, Frank Millman wrote: > >> Hi all >> >> This is not important, but I would appreciate it if someone could >> expla

Re: Unicode, stdout, and stderr

"Lele Gaifax" wrote in message news:87d2cx271o.fsf@nautilus.nautilus... > "Frank Millman" writes: > >>> No, both statements actually emit noise on the standard output, but the >>> former prints the *repr* of the string, the latter tries to encode it

Re: Unicode, stdout, and stderr

"Peter Otten" <__pete...@web.de> wrote in message news:lql3am$2q7$1...@ger.gmane.org... > Frank Millman wrote: > >> Hi all >> >> This is not important, but I would appreciate it if someone could explain >> the following, run from cmd.exe on Windows

Re: Unicode, stdout, and stderr

"Peter Otten" <__pete...@web.de> wrote in message news:lql9oi$hlt$1...@ger.gmane.org... > Frank Millman wrote: > [...] > >> Out of interest, does the same thing happen when writing to sys.stderr? > > If you are asking about the fallback mechanism, that is

What happens when you 'break' a generator?

'x' goes out of scope, the generator is garbage collected, even though it never completed. Is this correct? Frank Millman -- https://mail.python.org/mailman/listinfo/python-list

Re: What happens when you 'break' a generator?

"Peter Otten" <__pete...@web.de> wrote in message news:lr7ilg$de4$1...@ger.gmane.org... > Frank Millman wrote: > >> Hi all >> >> Python 3.4.1 >> >> Here is a simple generator - >> >> def test(): >> print('start&

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