Re: What does it take to implement a chat system in Python (Not asking for code just advice before I start my little project)
On Thu, Jul 18, 2013 at 2:36 PM, Aseem Bansal asmbans...@gmail.com wrote: I wanted to do a little project for learning Python. I thought a chat system will be good as it isn't something that I have ever done. A good thing to start with. Yes, it's been done before, many times... but if you think about it, it's the fundamental on which pretty much everything else is derived. The step from a multi-person chat system to a multiplayer game is very slight. I wanted to know what will I need? I think that would require me these 1 learn network/socket programming 2 find a free server to host my chat server 3 GUI development for clients Learn network programming, definitely. As an adjunct to that, learn networking security. For instance, do not think in terms of the client will only ever send X; the server has to be able to cope, safely, with any stream of bytes coming from the socket. Also, be sure you understand the difference between bytes (or octets) and Unicode characters, and know what everything is. Python 3 helps with this. Finding hosting (I'll use the word server here to mean the program, and will say hosting when I mean a computer) is optional though; for your first tests, use your own computer. You can run the server and a number of clients all on the same computer, and alt-tab between them; or, if you have a LAN, you can use that. Then when you want to expand to the full internet and let your friends in on this, you can still host it on your home internet connection, though you may need to choose carefully which port you use (some home connections prevent incoming port 25 and 80 traffic). You won't need to worry about hosting until (a) you need it to be up 24x7 and don't want to depend on your home system, and/or (b) you need more bandwidth/processing than your home connection will do. Neither will be true of your first experiments. GUI development, in my opinion, should be left for Phase Two. Start by making a very simple system that just works with plain text; later on, make a fancy graphical interface. Keep the text version working, and keep them compatible. Trust me, you'll appreciate that text one when you start debugging - it'll be so easy to see what's going on. -I wanted to know whether these are all that I would need or are there more things? -Will I need to learn a web framework like Django? Hmm. I would think not; I'd recommend that a chat system work with TCP sockets directly, for simplicity and performance. Working with a web framework implies working with HTTP, and unless you're running this in a web browser, there's no reason to do that. -Will I need to learn something for database management like sql for handling people's account names and password? Optional. Leave that for Phase Two; to start off with, just let people type in their own names, and don't worry about authentication initially (this isn't such a crazy idea - IRC largely works this way). You can add authentication later. Any other advice for me(a novice programmer)? Get to know as many tools as you can, so that when you're faced with a problem, you can select the right one for the job. You are not Jeremy Clarkson, your toolchest is not all hammers :) In this particular instance, you may find that Python is the best language for the clients, but not for the server. I've written a number of chat-server-like systems, most notably MUD clients and derivatives, and I use Pike for the server. Its biggest advantage (over Python) is that you can tweak the code while it's running; I've had Pike servers running for over two years on commodity hardware (and would still have that uptime today if the UPS hadn't died). Still trying to claw all that back.. up to 25 weeks so far. Pike and Python are extremely similar in semantics (even down to having a nearly-identical internal string representation, as of Python 3.3), but have distinctly different syntax (Pike looks like C), and their optimizations are quite different, so performance varies somewhat. They're both high level languages that let you manipulate functions, dictionaries, etc, as first-class objects, they're both sufficiently high performance/efficiency to run something like this on 0.00 load average (my server's load is more usually from Apache serving PHP pages than it is from either Pike or Python), and both will serve you well in this project. One more tip: Don't be afraid to ask for help! I personally *love* networking, and will gladly help out with any little problems you run into; the same, I am sure, will be true of a good number of people on this list. Networking is a complicated world, and there are a lot of odd concepts to master; but it's also an immensely fun bunch of technologies. Why play with just one computer when you can play with half a dozen! ChrisA -- http://mail.python.org/mailman/listinfo/python-list
Re: What does it take to implement a chat system in Python (Not asking for code just advice before I start my little project)
@vikash agrawal About GUI I discussed it at https://groups.google.com/forum/#!starred/comp.lang.python/M-Dy2pyWRfM and I am thinking about using PySide 1.2 for clients of chat system. I think I'll need downloadable clients if I want to make something like google talk. Then I'll need to implement server side programming also. I think google app engine would be suitable for this as it is going to be always online. In the above scenario I wanted to know whether the database can be stored on google app engine itself? Is it possible? Having a chat system with server online and DB offline isn't going to be good. Should I consider heroku for this or can it be done using google app engine? Is it viable to have the DB on google appengine itself? About using web frameworks, in the above scenario when there isn't an online website for chat would I need web frameworks? I am confused about this. Can server side programming be done in Python or by using a web framework only? -- http://mail.python.org/mailman/listinfo/python-list
Re: What does it take to implement a chat system in Python (Not asking for code just advice before I start my little project)
On Thu, Jul 18, 2013 at 4:11 PM, Aseem Bansal asmbans...@gmail.com wrote: @vikash agrawal About GUI I discussed it at https://groups.google.com/forum/#!starred/comp.lang.python/M-Dy2pyWRfM and I am thinking about using PySide 1.2 for clients of chat system. I think I'll need downloadable clients if I want to make something like google talk. Then I'll need to implement server side programming also. I think google app engine would be suitable for this as it is going to be always online. Hrm. Rather than pointing people to Google Groups, which a number here (and not unreasonably) detest, you may want to link to the python-list archive: http://mail.python.org/pipermail/python-list/2013-July/thread.html#651359 About using web frameworks, in the above scenario when there isn't an online website for chat would I need web frameworks? I am confused about this. Can server side programming be done in Python or by using a web framework only? You can certainly do your server-side programming directly in Python; in fact, I recommend it for this task. There's no reason to use HTTP, much less a web framework (which usually consists of a structured way to build HTML pages, plus a bunch of routing and stuff, none of which you need). All you need is a simple structure for separating one message from another. I would recommend either going MUD/TELNET style and ending each message with a newline, or prefixing each message with its length in octets. Both ways work very nicely; newline-termination allows you to use a MUD client for debugging, which I find very convenient (full disclosure: I am the author of multiple MUD clients, including one that's zero-dollar and another that's free). ChrisA -- http://mail.python.org/mailman/listinfo/python-list
Re: What does it take to implement a chat system in Python (Not asking for code just advice before I start my little project)
@Chris Angelico Thanks. That cleared many doubts and your suggestions would definitely be useful. I am asking the next paragraph because you said about Python 3 helping with things. I am not looking for a debate or anything just a opinion. I learnt Python myself and everyone told me that Python 2 is status quo so I learned Python 2 and have been working with it. I am just 1.5 months in Python programming so should I consider switching to Python 3 if it helps with new things or should I stick with Python 2 to get a taste of what is currently out there? About Pike, thanks for the heads up. But for now I'll use Python. I wanted to learn Python through this project. I'll leave Pike for later. Maybe Phase 1.5. Aren't you guys posting in google groups? I thought you were because I can see your posts here. How do I post in python mailing list and see its archives instead of posting on google groups? -- http://mail.python.org/mailman/listinfo/python-list
Re: What does it take to implement a chat system in Python (Not asking for code just advice before I start my little project)
On 2013.07.18 01:36, Aseem Bansal wrote: I learnt Python myself and everyone told me that Python 2 is status quo so I learned Python 2 and have been working with it. I am just 1.5 months in Python programming so should I consider switching to Python 3 if it helps with new things or should I stick with Python 2 to get a taste of what is currently out there? Python 2 is what some people are stuck with because their projects depend on huge libraries that have not yet made all their code compatible with Python 3 (or on libraries that are not actively maintained or are being replaced by something else). All new code and new Python users should be using Python 3 unless there is a pressing need for a library that requires Python 2. Most popular libraries at this point have either been made compatible or have been replaced by something that supports Python 3. Python 3 is no longer the shiny new thing to look at in the future - 3.0 was released in December 2008. -- CPython 3.3.2 | Windows NT 6.2.9200 / FreeBSD 9.1 -- http://mail.python.org/mailman/listinfo/python-list
Re: What does it take to implement a chat system in Python (Not asking for code just advice before I start my little project)
On Thu, Jul 18, 2013 at 4:36 PM, Aseem Bansal asmbans...@gmail.com wrote: @Chris Angelico Thanks. That cleared many doubts and your suggestions would definitely be useful. I am asking the next paragraph because you said about Python 3 helping with things. I am not looking for a debate or anything just a opinion. I learnt Python myself and everyone told me that Python 2 is status quo so I learned Python 2 and have been working with it. I am just 1.5 months in Python programming so should I consider switching to Python 3 if it helps with new things or should I stick with Python 2 to get a taste of what is currently out there? Python 3 is now the current Python. There'll be no more development on Python 2 (bugfixes/security only, and even that won't be forever), so I strongly recommend going to Python 3. You're writing new code, so there's really no reason to use Python 2. All the core libraries you'll be needing (socket, mainly) are available for Py3, and as I mentioned earlier, Unicode handling is far superior (especially as of 3.3). About Pike, thanks for the heads up. But for now I'll use Python. I wanted to learn Python through this project. I'll leave Pike for later. Maybe Phase 1.5. Yep. My main point there is: Don't be too stuck on any one tool, learn 'em all. Learn Python now, you may find that you want to use Pike later. Build your system so you can switch one thing out for another. Aren't you guys posting in google groups? I thought you were because I can see your posts here. How do I post in python mailing list and see its archives instead of posting on google groups? Google Groups is one way (and one of the worse ways) of accessing comp.lang.python, which is cross-mirrored with the mailing list python-list@python.org - the easiest way is to simply subscribe to either the newsgroup or the mailing list, using a newsreader or mail client. As you see, I'm posting from gmail; there are a couple of issues with using gmail here (it doesn't have a Reply List option, for instance), but it's orders of magnitude less annoying than Google Groups. ChrisA -- http://mail.python.org/mailman/listinfo/python-list
Re: What does it take to implement a chat system in Python (Not asking for code just advice before I start my little project)
@Andrew Berg @Chris Angelico Is there a way to have both Python 2 and 3 installed on my computer till I can update the little codebase that I have built? Can I make different commands for invoking python 2 and Python 3? I am using Windows 7 and use Windows Powershell as an alternative to the linux terminal. Any suggestions about how to do that instead of breaking all my code at once? -- http://mail.python.org/mailman/listinfo/python-list
Re: What does it take to implement a chat system in Python (Not asking for code just advice before I start my little project)
On Thu, Jul 18, 2013 at 5:05 PM, Aseem Bansal asmbans...@gmail.com wrote: @Andrew Berg @Chris Angelico Is there a way to have both Python 2 and 3 installed on my computer till I can update the little codebase that I have built? Can I make different commands for invoking python 2 and Python 3? I am using Windows 7 and use Windows Powershell as an alternative to the linux terminal. Any suggestions about how to do that instead of breaking all my code at once? Yep! And in fact, Python 3.3 includes a launcher that makes it fairly easy. Just install another version, and then check this out: http://docs.python.org/3.3/using/windows.html#launcher You can use a Unix-style shebang to specify which Python version some script depends on. ChrisA -- http://mail.python.org/mailman/listinfo/python-list
Re: tkinter redraw rates
Am 18.07.13 06:38, schrieb fronag...@gmail.com:
On Thursday, July 18, 2013 9:07:24 AM UTC+8, Dave Angel wrote:
Nope - don't use that. Instead, post an event on the queue, and return
to the mainloop() from whence we came.
def test_thread(self):
if self.loader_thread.isAlive():
self.root_window.after(100, self.test_thread)
return
I see, though it should be noted that your method doesn't actually
block the rest of the even handler code from running, had to fiddle
with it a bit to get that to work. May I ask what exactly is the
rationale behind implementing it like this, though?
Exactly this is the goal of it. Event handlers are supposed to run in as
short time as possible, and should never block. The reason is that you
want the events to be processed in the order they come in, such that he
user can still move the window, resize it, iconify/maximize etc.
That said, the code still looks odd to me. I have used the Tk with
multithreading in the past, but directly from Tcl, and not from Python.
The basic idea is to have the background thread (which does the work)
signal the main thread about its status, i.e. in the worker thread:
for i in range(50):
some_odd_computation()
signal('progress', i)
signal('finished')
and in the main thread you bind() to the events fired from the worker
thread. That way you don't run any periodic polling.
I fear that Tkinter has a shortcoming which does not allow this pattern
to be implemented. The tricky thing is to implement this signal()
function, which must post an event to another thread. From the C level,
there is Tcl_ThreadQueueEvent() which does this. It arranges for a C
function to be run from the event loop of another thread. From Tcl,
thread::send does this. To use it from Tkinter, it would be necessary to
create a Tcl interpreter in the worker thread *without* loading Tk.
Some day I should dive into the innards of Tkinter to see if this is
possible. Then you could implement signal() simply by
def signal(sig, data=''):
tclinterp.eval('thread::send -async $mainthread {event generate .
%s -data {%s}'%sig%data)
and in the main thread bind() to the virtual events.
Christian
--
http://mail.python.org/mailman/listinfo/python-list
Re: What does it take to implement a chat system in Python (Not asking for code just advice before I start my little project)
@ChrisA Thanks. That's great. That solved the whole thing easily. I'll install Python 3 and start updating today. About reading comp.lang.python can you suggest how to read it and reply? I have never read a newsgroup leave alone participated in one. I am used to forums like stackoverflow. Any way to read it and reply by one interface? If not, give any suggestion. I'll use that. -- http://mail.python.org/mailman/listinfo/python-list
Re: What does it take to implement a chat system in Python (Not asking for code just advice before I start my little project)
On Thu, Jul 18, 2013 at 5:29 PM, Aseem Bansal asmbans...@gmail.com wrote: @ChrisA Thanks. That's great. That solved the whole thing easily. I'll install Python 3 and start updating today. About reading comp.lang.python can you suggest how to read it and reply? I have never read a newsgroup leave alone participated in one. I am used to forums like stackoverflow. Any way to read it and reply by one interface? If not, give any suggestion. I'll use that. Easiest, if you're not familiar with newsgroups, is to subscribe to the mailing list. Subscribe here: http://mail.python.org/mailman/listinfo/python-list Then you get an email every time anyone posts. Threading should be handled by any decent mail client, and you just hit Reply-List (or Reply and change the address to python-list@python.org) to post a follow-up. It's a good system. Works for myriad lists. The software that runs this one (Mailman) is even written in Python, so you're using Python to discuss Python :) ChrisA -- http://mail.python.org/mailman/listinfo/python-list
Re: What does it take to implement a chat system in Python (Not asking for code just advice before I start my little project)
@ChrisA I subscribed to it. How do I reply to a message that has already been posted before my subscription? -- http://mail.python.org/mailman/listinfo/python-list
Re: What does it take to implement a chat system in Python (Not asking for code just advice before I start my little project)
On Thu, Jul 18, 2013 at 5:48 PM, Aseem Bansal asmbans...@gmail.com wrote: @ChrisA I subscribed to it. How do I reply to a message that has already been posted before my subscription? Not easily, far as I know. But you now have this reply, and you can always just post something with the right subject line and hope that people pick up that it's part of the same discussion topic. Transition isn't the cleanest but once it's done it's done. ChrisA -- http://mail.python.org/mailman/listinfo/python-list
Re: What does it take to implement a chat system in Python (Not asking for code just advice before I start my little project)
I tried replying to your message by mail. I used the reply button and send it to python-list@python.org? Or do I need to use pytho...@python.org as you wrote in your post? -- http://mail.python.org/mailman/listinfo/python-list
Re: What does it take to implement a chat system in Python (Not asking for code just advice before I start my little project)
On Thu, Jul 18, 2013 at 6:10 PM, Aseem Bansal asmbans...@gmail.com wrote: I tried replying to your message by mail. I used the reply button and send it to python-list@python.org? Or do I need to use pytho...@python.org as you wrote in your post? You replied correctly. The ellipsis was presumably an anti-spam feature. Send to python-list at python dot org to post. ChrisA -- http://mail.python.org/mailman/listinfo/python-list
Re: Stack Overflow moderator “animuson”
Joshua Landau joshua at landau.ws writes: The same with Unicode. We hate French people, And for good damn reason too. They're ruining our language, á mon avis. We do! off to buy wine Regards Antoine. -- http://mail.python.org/mailman/listinfo/python-list
Re: Creating a Program to Decompose a Number and Run a Function on that Decomposition
On 18 July 2013 00:58, CTSB01 scott.moore...@gmail.com wrote: Please let me know if this is unclear. I will certainly continue revising until it makes sense to those reading. Can you summarize what your question is? Leave aside the details of the function, just explain what thing in particular you aren't able to do. -- http://mail.python.org/mailman/listinfo/python-list
Re: tkinter redraw rates
On Thursday, July 18, 2013 3:20:28 PM UTC+8, Christian Gollwitzer wrote:
Am 18.07.13 06:38, schrieb fronag...@gmail.com:
On Thursday, July 18, 2013 9:07:24 AM UTC+8, Dave Angel wrote:
Nope - don't use that. Instead, post an event on the queue, and return
to the mainloop() from whence we came.
def test_thread(self):
if self.loader_thread.isAlive():
self.root_window.after(100, self.test_thread)
return
I see, though it should be noted that your method doesn't actually
block the rest of the even handler code from running, had to fiddle
with it a bit to get that to work. May I ask what exactly is the
rationale behind implementing it like this, though?
Exactly this is the goal of it. Event handlers are supposed to run in as
short time as possible, and should never block. The reason is that you
want the events to be processed in the order they come in, such that he
user can still move the window, resize it, iconify/maximize etc.
That said, the code still looks odd to me. I have used the Tk with
multithreading in the past, but directly from Tcl, and not from Python.
The basic idea is to have the background thread (which does the work)
signal the main thread about its status, i.e. in the worker thread:
for i in range(50):
some_odd_computation()
signal('progress', i)
signal('finished')
and in the main thread you bind() to the events fired from the worker
thread. That way you don't run any periodic polling.
I fear that Tkinter has a shortcoming which does not allow this pattern
to be implemented. The tricky thing is to implement this signal()
function, which must post an event to another thread. From the C level,
there is Tcl_ThreadQueueEvent() which does this. It arranges for a C
function to be run from the event loop of another thread. From Tcl,
thread::send does this. To use it from Tkinter, it would be necessary to
create a Tcl interpreter in the worker thread *without* loading Tk.
Some day I should dive into the innards of Tkinter to see if this is
possible. Then you could implement signal() simply by
def signal(sig, data=''):
tclinterp.eval('thread::send -async $mainthread {event generate .
%s -data {%s}'%sig%data)
and in the main thread bind() to the virtual events.
Christian
Ah, I see. Thank you for your help!
--
http://mail.python.org/mailman/listinfo/python-list
Re: Why on CentOS, python consumes too much memory ?
I found that it was caused by not by python but by /usr/lib/locale/locale-archive, the same problem as that described in http://illiterat.livejournal.com/4615.html. William 在 2013年7月18日星期四UTC+8下午12时45分01秒，William Bai写道： Hi: Previously, we found that our python scripts consume too much memory. So I use python's resource module to restrict RLIMIT_AS's soft limit and hard limit to 200M. On my RHEL5.3(i386)+python2.6.2, it works OK. But on CentOS 6.2(x86_64)+python2.6.6, it reports memory error(exceeding 200M). And I tested with a very small script, and result is out of my expect, it still use too much memory on my CentOS 6.2 python: import time time.sleep(200) I use guppy and memory_profiler to see the memory usage and see that python objects just use about 6M memory both on RHEL5.3(i386)+python2.6 and CentOS 6.2(x86_64)+python2.6. But when I cat /proc/pid/status. I found that though VmRss is not very large on both machines. But the VmSize on CentOS 6.2(x86_64)+python2.6 is 140M-180M, while on my RHEL5.3+python2.6, the VmSize is just 6M. And I tested on CentOS 5.7(x86_64)+python2.4.3, the VmSize is 70M. I could understand that 64 bit machines will occupy more virtual memory than that on 32 bit, because the length of some types are not the same. But I don't know why they differs so greatly(6M to 180M), Or is this only caused by that python2.6 on CentOS 6.2's memory allocation is different from python's default one? Could you kindly give me some clues? Thank you very much. Best Regards William -- http://mail.python.org/mailman/listinfo/python-list
Re: Why on CentOS, python consumes too much memory ?
snowingbear at gmail.com writes: Hi: Previously, we found that our python scripts consume too much memory. So I use python's resource module to restrict RLIMIT_AS's soft limit and hard limit to 200M. On my RHEL5.3(i386)+python2.6.2, it works OK. But on CentOS 6.2(x86_64)+python2.6.6, it reports memory error(exceeding 200M). Take a look at http://www.selenic.com/smem/ for accurate measurement of actual memory consumption under Linux. Virtual memory size is generally useless for this purpose. Regards Antoine. -- http://mail.python.org/mailman/listinfo/python-list
Re: Homework help requested (not what you think!)
On Tue, Jul 16, 2013 at 6:43 PM, John Ladasky john_lada...@sbcglobal.netwrote: Hi folks, No, I'm not asking for YOU to help ME with a Python homework assignment! Previously, I mentioned that I was starting to teach my son Python. https://groups.google.com/d/msg/comp.lang.python/I7spp6iC3tw/8lxUXfrL-9gJ He just took a course at his high school called Web Technology and Design. They had the students use tools like Dream Weaver, but they also hand-coded some HTML and JavaScript. He has a little experience. I am building on it. Well, a few other parents caught wind of what I was doing with my son, and they asked me whether I could tutor their kids, too. I accepted the jobs (for pay, actually). The kids all claim to be interested. They all want to write the next great 3D video game. Thus, I'm a little surprised that the kids don't actually try to sit down and code without me prompting them. I think that they're disappointed when I show them how much they have to understand just to write a program that plays Tic Tac Toe. Where programming is concerned, I'm an autodidact. I started programming when I was twelve, with little more guidance than the Applesoft Basic manual and the occasional issue of Byte Magazine. I hacked away. Over the years, I have acquired a working knowledge of BASIC, 6502 assembly language, Pascal, C, and finally Python (my favorite). If I knew how to impart a love of experimentation to my students, I would do that. One kid looks like he's ready to forge ahead. In the mean time, one parent has recognized his son's lack of independence, and has asked me to assign programming homework. I hope it doesn't kill the kid's enthusiasm, but I'm willing to try it. So, what I am seeking are suggestions for programming assignments that I can give to brand-new students of Python. Please keep in mind that none of them are even up to the task of a simple algorithm like Bubble Sort -- at least, not yet. Many thanks! -- http://mail.python.org/mailman/listinfo/python-list Thanks for this! I'm trying to put together something very similar right now for my younger brother, and this thread and associated links have been very helpful. He's taught himself enough Python to make a rudimentary text adventure game already, so the interest is definitely there. I'm hoping to sneak in some general CS concepts as well, although I'm concerned some things might be less obvious in Python. Also, I learned to program in PHP and Java before I learned Python (starting with a Django project), so I'm not sure how to start there... probably going to borrow some ideas from the intro level Java class I've been TA'ing. In my experience, people learn best via projects, so I've been trying to come up with some that are interesting, not too difficult, and focus on one or two main concepts. To be honest, I have no idea how realistic they are, because it's been a while since I first learned how to program and that wasn't even in Python. Offering it up here for your perusal / feedback (roughly in the order I'd do them): - text adventure: practice with stdlib, control flow, I/O. Lots of opportunities for embellishment here - create maps of rooms, load/save games by serializing into files or even a database, create status bars in the console, etc. - blackjack: a game with simple rules, you have to think about representation for the cards, and you can easily simulate a computer opponent. extra credit: graphical front-end that displays images for the cards. - sudoku checker/generator/solver: practice with lists, loops, logic, implementing algorithms. extra credit: design a solver yourself without looking up algorithms. - mandelbrot set app: math and graphics! can use this as an opportunity to introduce numpy/matplotlib, or DIY. (could be a bit esoteric depending on the student, though.) - game of life: simple graphics and update rules, fun to watch, source of the unofficial hacker emblem. - (extra credit?) simple chat program: this doesn't really fit the theme, but it's an introduction to networking / sockets, which could be useful. (and the intro class had lots of fun sending messages back and forth in class.) At this point, I'm hoping he'll be comfortable enough to begin working on a more complete game (most likely, using pygame, as he hasn't expressed much interest in 3D). Some ideas for classic/simple/well-defined games to try: - blob game (what is this one actually called? where the player absorbs smaller entities to grow but dies if he runs into a bigger entity) - tank battle (again, not sure on the name. two players, moving around, shooting at each other on a map with obstructions) - maze (bonus points for a maze generation algorithm) - snake - frogger - asteroids - etc. This doesn't include a lot of standard but less flashy stuff e.g. advanced data structures, graphs, sorting algorithms, because the idea was to find projects that would be tractable for
Re: What does it take to implement a chat system in Python (Not asking for code just advice before I start my little project)
Ok I'll mail by e-mail now. Hope that it reaches the place correctly.-- http://mail.python.org/mailman/listinfo/python-list
Re: Homework help requested (not what you think!)
In article mailman.4786.1374021635.3114.python-l...@python.org, Chris Angelico ros...@gmail.com wrote: On Wed, Jul 17, 2013 at 8:43 AM, John Ladasky john_lada...@sbcglobal.net wrote: I think that they're disappointed when I show them how much they have to understand just to write a program that plays Tic Tac Toe. The disillusionment of every novice programmer, I think. It starts out as I want to learn programming and make a game. Real programming is more like I can automate mundane tasks, which doesn't sound half as exciting. But this is why I'm dubious of programming courses that actually try to hold onto the let's make a game concept, because the students are likely to get a bit of a let-down on realizing that it really doesn't work that easily (this is a two-week course, at the end of it I should have written the next insert name of popular game for all my friends). Now comes the Forth experience. I did the following experiment with a psychology student, who had never been exposed to computers and had no prior experience. He aquired a Jupiter Ace, which has Forth as a built in language. So his only exposure was to Forth. Now I started to teach him programming, using the cartoon book starting Forth. Once in a weeek we sat together and worked through some exercises. After 6 weeks he surprised me. He had programmed the game pong which is a simple table tennis like game, where you have to keep a ball in play. He never gave me a a chance to prevent him having a traumatic experience of failure by telling him that was not a task a novice should start. Or for that matter that such any real time programming requires considerable up front planning and design. [This was an adult, and at the time university students in the Netherlands were certified intelligent and skilled and disciplined in learning.] The lesson that is in there for you is to not hold your students back. They may surprise you! Groetjes Albert ChrisA -- Albert van der Horst, UTRECHT,THE NETHERLANDS Economic growth -- being exponential -- ultimately falters. albert@spearc.xs4all.nl =n http://home.hccnet.nl/a.w.m.van.der.horst -- http://mail.python.org/mailman/listinfo/python-list
Re: What does it take to implement a chat system in Python (Not asking for code just advice before I start my little project)
On 2013-07-18, Chris Angelico ros...@gmail.com wrote: On Thu, Jul 18, 2013 at 4:11 PM, Aseem Bansal asmbans...@gmail.com wrote: @vikash agrawal About GUI I discussed it at https://groups.google.com/forum/#!starred/comp.lang.python/M-Dy2pyWRfM and I am thinking about using PySide 1.2 for clients of chat system. I think I'll need downloadable clients if I want to make something like google talk. Then I'll need to implement server side programming also. I think google app engine would be suitable for this as it is going to be always online. Hrm. Rather than pointing people to Google Groups, which a number here (and not unreasonably) detest, you may want to link to the python-list archive: http://mail.python.org/pipermail/python-list/2013-July/thread.html#651359 While that's the canonical archive, the UI is awful. I find gmane's web UI to be _far_ more friendly and useful than the pipermail archive UI: http://thread.gmane.org/gmane.comp.python.general/737271/ 1) The search facility sort-of works (though using google with site:gmane.org:/gmane.comp.python usually works better). 2) You can post from the gmane web UI. 3) It offers both a threaded and a flat, blog-like version. -- Grant Edwards grant.b.edwardsYow! We just joined the at civil hair patrol! gmail.com -- http://mail.python.org/mailman/listinfo/python-list
Re: Homework help requested (not what you think!)
On Thursday 18 July 2013 09:04:32 Albert van der Horst did opine: In article mailman.4786.1374021635.3114.python-l...@python.org, Chris Angelico ros...@gmail.com wrote: On Wed, Jul 17, 2013 at 8:43 AM, John Ladasky john_lada...@sbcglobal.net wrote: I think that they're disappointed when I show them how much they have to understand just to write a program that plays Tic Tac Toe. The disillusionment of every novice programmer, I think. It starts out as I want to learn programming and make a game. Real programming is more like I can automate mundane tasks, which doesn't sound half as exciting. But this is why I'm dubious of programming courses that actually try to hold onto the let's make a game concept, because the students are likely to get a bit of a let-down on realizing that it really doesn't work that easily (this is a two-week course, at the end of it I should have written the next insert name of popular game for all my friends). Now comes the Forth experience. I did the following experiment with a psychology student, who had never been exposed to computers and had no prior experience. He aquired a Jupiter Ace, which has Forth as a built in language. So his only exposure was to Forth. Now I started to teach him programming, using the cartoon book starting Forth. Once in a weeek we sat together and worked through some exercises. After 6 weeks he surprised me. He had programmed the game pong which is a simple table tennis like game, where you have to keep a ball in play. He never gave me a a chance to prevent him having a traumatic experience of failure by telling him that was not a task a novice should start. Or for that matter that such any real time programming requires considerable up front planning and design. [This was an adult, and at the time university students in the Netherlands were certified intelligent and skilled and disciplined in learning.] The lesson that is in there for you is to not hold your students back. They may surprise you! Groetjes Albert I'll 2nd those thoughts, and tell 2 or 3 stories. When the Timex 1000 was new, I bought one for my kids and turned them loose with it. Within a week my 10 year old had composed a car graphic, and written a small program to drive it around on the screen. Back in a slightly newer time frame, Mr. Brodie's Forth, where you built your own extensions to the language, was used for a time at a small CA hospital as the hospitals accounting system, on a machine with only 64k of dram. A TRS-80 Color Computer we now call the old grey ghost. Fast forward 5 years from then, I wrote a program to work with a Grass Valley Group 300-3A/B television video switcher, which you could teach to do tricks, but it didn't have a means to save and reload them without buying a $20,000 EDISK accessory package. So I wrote one in Basic09, running on a Color Computer 2, still only 64k of dram, based on a copy of the com protocol that had come with the switcher when we had purchased it used from KTLA-TV. I wrote it on station time, and sold the station the hardware at about what it was worth at the time for a coco2 and 2 disk drives, $275. 14 years later as I was getting ready to retire and no one else knew that switcher, it was replaced, and my 'E- DISK' was no longer needed, so they gave it to me, so I still have it in my 'coco' collection in the basement. Moral of course is never tell somebody it can't be done, he'll eat your lunch by doing it. Oh, BTW, mine was 4x faster, and instead of a 2 hex digit display for file names, gave the tech directors English filenames on a small video screen. They loved it because each one could then have his own personalized bag of video tricks to use during a news cast. ChrisA Cheers, Gene -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) My web page: http://coyoteden.dyndns-free.com:85/gene is up! My views http://www.armchairpatriot.com/What%20Has%20America%20Become.shtml Syntactic sugar causes cancer of the semicolon. -- Epigrams in Programming, ACM SIGPLAN Sept. 1982 A pen in the hand of this president is far more dangerous than 200 million guns in the hands of law-abiding citizens. -- http://mail.python.org/mailman/listinfo/python-list
Re: Why on CentOS, python consumes too much memory ?
On 07/18/2013 03:13 AM, William Bai wrote: I found that it was caused by not by python but by /usr/lib/locale/locale-archive, the same problem as that described in http://illiterat.livejournal.com/4615.html. Too funny. So in other words there isn't a problem at all. What you thought was RAM usage was really just a memory-mapped file. That's why Antoine said that using VSS to determine memory usage is not valid at all in determining memory footprint. VSS shows all kinds of things from shared libraries to locale archives that have zero impact on RAM usage. Every app will show at least the size of glibc in its VSS number. What is too much memory anyway? What do you mean by consume too much memory? Now if your script has a resource leak and is long-running, then that's a problem, but the solution is to fix your resource leak, not have the OS kill your app when it exceeds the RLIMIT. -- http://mail.python.org/mailman/listinfo/python-list
RE: Homework help requested (not what you think!)
Not to open Pandora's box or anything, but are you aware of the Roguelike community (subculture?) (cult?) of game development? Rogue was an old text-based role playing game for Unix, text-based in the sense that it used the console as a 2D map and ASCII characters as graphics. There has been a sort of revival of the genre and a lot of amateur game developers have done some simple or complex variations on the theme. They're not all RPGs. The category is defined by a few commonalities like procedural content generation. There are very active forums and an extensive wiki. I think these might be particularly appropriate fodder for a tutoring experience because they are neatly broken down into bite-sized chunks. One day you could do procedural map generation, another day AI, etc. And all these lessons generalize to the professional game development world. Look at this forum: http://forums.roguetemple.com/index.php?board=7.0 This wiki: http://roguebasin.roguelikedevelopment.org/index.php?title=Main_Page This Python tutorial: http://roguebasin.roguelikedevelopment.org/index.php?title=Complete_Roguelike_Tutorial,_using_python%2Blibtcod By the way, I tried my hand at Markov chain name generation, too. My python code is at https://github.com/joeclark77net/jc77rogue/blob/master/program/namegen.py and what it does is read a corpus of names and generate new names that sound like that corpus. So you feed it a list of Roman names and it will give you fake names that sound Roman. // joseph w. clark , phd , visiting research associate \\ university of nebraska at omaha - college of IST Date: Tue, 16 Jul 2013 15:43:45 -0700 Subject: Homework help requested (not what you think!) From: john_lada...@sbcglobal.net To: python-list@python.org Hi folks, No, I'm not asking for YOU to help ME with a Python homework assignment! Previously, I mentioned that I was starting to teach my son Python. https://groups.google.com/d/msg/comp.lang.python/I7spp6iC3tw/8lxUXfrL-9gJ He just took a course at his high school called Web Technology and Design. They had the students use tools like Dream Weaver, but they also hand-coded some HTML and JavaScript. He has a little experience. I am building on it. Well, a few other parents caught wind of what I was doing with my son, and they asked me whether I could tutor their kids, too. I accepted the jobs (for pay, actually). The kids all claim to be interested. They all want to write the next great 3D video game. Thus, I'm a little surprised that the kids don't actually try to sit down and code without me prompting them. I think that they're disappointed when I show them how much they have to understand just to write a program that plays Tic Tac Toe. Where programming is concerned, I'm an autodidact. I started programming when I was twelve, with little more guidance than the Applesoft Basic manual and the occasional issue of Byte Magazine. I hacked away. Over the years, I have acquired a working knowledge of BASIC, 6502 assembly language, Pascal, C, and finally Python (my favorite). If I knew how to impart a love of experimentation to my students, I would do that. One kid looks like he's ready to forge ahead. In the mean time, one parent has recognized his son's lack of independence, and has asked me to assign programming homework. I hope it doesn't kill the kid's enthusiasm, but I'm willing to try it. So, what I am seeking are suggestions for programming assignments that I can give to brand-new students of Python. Please keep in mind that none of them are even up to the task of a simple algorithm like Bubble Sort -- at least, not yet. Many thanks! -- http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
Re: What does it take to implement a chat system in Python (Not asking for code just advice before I start my little project)
On 7/18/2013 3:29 AM, Aseem Bansal wrote: About reading comp.lang.python can you suggest how to read it and reply? To read this list as a newsgroup use news.gmane.org. The difference between the mailing list interface and newsgroup interface is that the latter automatically segregates messages by group and only downloads the messages you want to read. Gmane is also a better way to search the archive. I have never read a newsgroup leave alone participated in one. I am used to forums like stackoverflow. Any way to read it and reply by one interface? If not, give any suggestion. I'll use that. I use Thunderbird. There is almost no difference between replying to emails and replying to newsgroup posts. -- Terry Jan Reedy -- http://mail.python.org/mailman/listinfo/python-list
Jabber Bot
Anyone have any luck with creating Jabber Bots? Everyone I have found so far for python 3.3 has been outdated, or the required modules are outdated. -- http://mail.python.org/mailman/listinfo/python-list
Re: What does it take to implement a chat system in Python (Not asking for code just advice before I start my little project)
18.07.13 20:04, Terry Reedy написав(ла): On 7/18/2013 3:29 AM, Aseem Bansal wrote: About reading comp.lang.python can you suggest how to read it and reply? To read this list as a newsgroup use news.gmane.org. The difference between the mailing list interface and newsgroup interface is that the latter automatically segregates messages by group and only downloads the messages you want to read. Gmane is also a better way to search the archive. Also newsgroup interface allow you reply to messages that have already been posted before your subscription. -- http://mail.python.org/mailman/listinfo/python-list
Re: What does it take to implement a chat system in Python (Not asking for code just advice before I start my little project)
On 2013-07-18, Serhiy Storchaka storch...@gmail.com wrote: 18.07.13 20:04, Terry Reedy ??(): On 7/18/2013 3:29 AM, Aseem Bansal wrote: About reading comp.lang.python can you suggest how to read it and reply? To read this list as a newsgroup use news.gmane.org. The difference between the mailing list interface and newsgroup interface is that the latter automatically segregates messages by group and only downloads the messages you want to read. Gmane is also a better way to search the archive. Also newsgroup interface allow you reply to messages that have already been posted before your subscription. Indeed. I read about 20 mailing lists by pointing a newsreader (I use slrn) at gmane.org. I find it to take far less effort than actualling having all of those messages actually sent to me. For _some_ of the gmane groups/lists you will actually have to subscribe to the mailing list in question if you want to be allowed to post messages -- but in your account settings for that mailing list server you can turn off delivery, so that it doesn't actually send you any of the postings. I really can't recommend gmane.org highly enough. [I don't actually read the python list using gmane.org, since I've read it from a Usenet news server via the group comp.lang.python since long before I discovered gmane.org.] -- Grant Edwards grant.b.edwardsYow! Not SENSUOUS ... only at FROLICSOME ... and in gmail.comneed of DENTAL WORK ... in PAIN!!! -- http://mail.python.org/mailman/listinfo/python-list
Re: Python HTTP POST
On Thu, Jul 18 2013,Joel Goldstick wrote: [snipped 28 lines] Many people find urllib and urllib2 to be confusing. There is a module called requests which makes this stuff a lot easier. ymmv http://docs.python-requests.org/en/latest/ Yes, please use this instead of the url* ones, easier to work with and tinker. I just finished writing a small scraper using it. The documentation too is very good. sivaram -- -- http://mail.python.org/mailman/listinfo/python-list
Re: What does it take to implement a chat system in Python (Not asking for code just advice before I start my little project)
On 2013-07-18, Grant Edwards invalid@invalid.invalid wrote: On 2013-07-18, Serhiy Storchaka storch...@gmail.com wrote: 18.07.13 20:04, Terry Reedy ??(): On 7/18/2013 3:29 AM, Aseem Bansal wrote: About reading comp.lang.python can you suggest how to read it and reply? To read this list as a newsgroup use news.gmane.org. The difference between the mailing list interface and newsgroup interface is that the latter automatically segregates messages by group and only downloads the messages you want to read. Gmane is also a better way to search the archive. Also newsgroup interface allow you reply to messages that have already been posted before your subscription. Indeed. I read about 20 mailing lists by pointing a newsreader (I use slrn) at gmane.org. I find it to take far less effort than actualling having all of those messages actually sent to me. For _some_ of the gmane groups/lists you will actually have to subscribe to the mailing list in question if you want to be allowed to post messages -- but in your account settings for that mailing list server you can turn off delivery, so that it doesn't actually send you any of the postings. I really can't recommend gmane.org highly enough. [I don't actually read the python list using gmane.org, since I've read it from a Usenet news server via the group comp.lang.python since long before I discovered gmane.org.] Huh - I (foolishly) didn't realize gmane actually had NNTP, I've always used it to search mailing lists. If the list dumped to usenet (much like c.l.python) I'd post through sunsite.dk, which is a very nice usenet provider. But that still meant several annoying mailing list subscriptions. ... man, I'm really glad I read your post :-) -- -owen -- http://mail.python.org/mailman/listinfo/python-list
Re: RE Module Performance
Devyn Collier Johnson於 2013年7月16日星期二UTC+8下午6時30分33秒寫道： Am 07/12/2013 07:16 PM, schrieb MRAB: On 12/07/2013 23:16, Tim Delaney wrote: On 13 July 2013 03:58, Devyn Collier Johnson devyncjohn...@gmail.com mailto:devyncjohn...@gmail.com wrote: Thanks for the thorough response. I learned a lot. You should write articles on Python. I plan to spend some time optimizing the re.py module for Unix systems. I would love to amp up my programs that use that module. If you are finding that regular expressions are taking too much time, have a look at the https://pypi.python.org/pypi/re2/ and https://pypi.python.org/pypi/regex/2013-06-26 modules to see if they already give you enough of a speedup. FYI, you're better off going to http://pypi.python.org/pypi/regex because that will take you to the latest version. Thank you everyone for the suggestions. I have not tried them yet. Devyn Collier Johnson I was thinking to decompose RE patterns into string matching formats of various strings in some formats. Anyway that involves some compiler techniques. -- http://mail.python.org/mailman/listinfo/python-list
Re: Jabber Bot
On 18 Jul 2013 18:52, Matt mattgrav...@gmail.com wrote: Anyone have any luck with creating Jabber Bots? Everyone I have found so far for python 3.3 has been outdated, or the required modules are outdated. You can find some modules here. http://stackoverflow.com/questions/1901828/best-python-xmpp-jabber-client-library If none of these is up to date or good for your purposes, you could manipulate XML using ElementTree. As for AI, someone else may be able to help you (if dihedral said something helpful that would be pretty meta) as I don't have any experience there. -- http://mail.python.org/mailman/listinfo/python-list
[ANN] Elasticluster 1.0.1, a tool for cluster provisioning in the cloud
The Grid Computing Competence Center (GC3) is pleased to announce release 1.0.1 of Elasticluster. Elasticluster is a Python tool to automate the creation, configuration and management of clusters of virtual machines hosted on a cloud. It can provision clusters on Amazon's Elastic Compute Cloud EC2 and compatible ones, like OpenStack. Elasticluster leverages the Ansible automation framework to deploy and configure software on the virtual cluster. Any Ansible playbook can in principle be used with Elasticluster; the default distribution contains recipes for: * Hadoop clusters with HDFS * HPC clusters based on SLURM, SGE, or PBS * storage clusters running Ceph, GlusterFS or PVFS A video demoes the basic features of Elasticluster setting up a SLURM compute cluster: http://youtu.be/cR3C7XCSMmA The code is available from PyPI and GitHub. If you are interested, please visit http://gc3-uzh-ch.github.io/elasticluster/ or get in touch with us at elasticlus...@googlegroups.com. Kind regards, (for the Grid Computing Competence Center) Riccardo Murri -- Riccardo Murri http://www.gc3.uzh.ch/people/rm Grid Computing Competence Centre University of Zurich Winterthurerstrasse 190, CH-8057 Zürich (Switzerland) Tel: +41 44 635 4222 Fax: +41 44 635 6888 -- http://mail.python.org/mailman/listinfo/python-list
Support for Mixed Mode Python/C++ debugging in Visual Studio
Hi folks, 1st time poster – apologies if I’m breaking any protocols… We were told that this would be a good alias to announce this on: a few Python OSS enthusiasts and Microsoft have created a plug-in for Visual Studio that enables Python - C/C++ debugging. You may find this useful for debugging your extension modules. A quick video overview of the mixed mode debugging feature: http://www.youtube.com/watch?v=wvJaKQ94lBYhd=1 (HD) Documentation: https://pytools.codeplex.com/wikipage?title=Mixed-mode%20debugging Python Tools for Visual Studio is free (and OSS): http://pytools.codeplex.com Cheers, s -- http://mail.python.org/mailman/listinfo/python-list
Re: Creating a Program to Decompose a Number and Run a Function on that Decomposition
On Thursday, July 18, 2013 5:12:08 AM UTC-4, Joshua Landau wrote: On 18 July 2013 00:58, CTSB01 scott.moore...@gmail.com wrote: Please let me know if this is unclear. I will certainly continue revising until it makes sense to those reading. Can you summarize what your question is? Leave aside the details of the function, just explain what thing in particular you aren't able to do. Hi Joshua, I actually managed to find a certain block like this: def phi_m(x, m): ... rtn = [] ... for n2 in range(0, len(x) * m - 2: ... n = n2 / m ... r = n2 - n * m ... rtn.append(m * x[n] + r * (x[n + 1] - x[n])) ... print 'n2 =', n2, ': n =', n, ' r =' , r, ' rtn =', rtn ... rtn However, I am getting the error expected an indented block on line two. Any idea why? -- http://mail.python.org/mailman/listinfo/python-list
Re: Creating a Program to Decompose a Number and Run a Function on that Decomposition
On 07/18/2013 02:57 PM, CTSB01 wrote: On Thursday, July 18, 2013 5:12:08 AM UTC-4, Joshua Landau wrote: On 18 July 2013 00:58, CTSB01 scott.moore...@gmail.com wrote: Please let me know if this is unclear. I will certainly continue revising until it makes sense to those reading. Can you summarize what your question is? Leave aside the details of the function, just explain what thing in particular you aren't able to do. Hi Joshua, I actually managed to find a certain block like this: def phi_m(x, m): ... rtn = [] ... for n2 in range(0, len(x) * m - 2: That 'for' line has miss-matched parentheses. ... n = n2 / m ... r = n2 - n * m ... rtn.append(m * x[n] + r * (x[n + 1] - x[n])) ... print 'n2 =', n2, ': n =', n, ' r =' , r, ' rtn =', rtn ... rtn However, I am getting the error expected an indented block on line two. Any idea why? -- Dr. Gary Herron Department of Computer Science DigiPen Institute of Technology (425) 895-4418 -- http://mail.python.org/mailman/listinfo/python-list
Re: Creating a Program to Decompose a Number and Run a Function on that Decomposition
On Thursday, July 18, 2013 6:12:52 PM UTC-4, Gary Herron wrote: On 07/18/2013 02:57 PM, CTSB01 wrote: On Thursday, July 18, 2013 5:12:08 AM UTC-4, Joshua Landau wrote: On 18 July 2013 00:58, CTSB01 scott.moore...@gmail.com wrote: Please let me know if this is unclear. I will certainly continue revising until it makes sense to those reading. Can you summarize what your question is? Leave aside the details of the function, just explain what thing in particular you aren't able to do. Hi Joshua, I actually managed to find a certain block like this: def phi_m(x, m): ... rtn = [] ... for n2 in range(0, len(x) * m - 2: That 'for' line has miss-matched parentheses. ... n = n2 / m ... r = n2 - n * m ... rtn.append(m * x[n] + r * (x[n + 1] - x[n])) ... print 'n2 =', n2, ': n =', n, ' r =' , r, ' rtn =', rtn ... rtn However, I am getting the error expected an indented block on line two. Any idea why? -- Dr. Gary Herron Department of Computer Science DigiPen Institute of Technology (425) 895-4418 Hi Gary, I fixed that issue, but I still end up with the same error. Specifically: File pyshell#9, line 2 ... rtn = [] ^ IndentationError: expected an indented block -- http://mail.python.org/mailman/listinfo/python-list
Re: What does it take to implement a chat system in Python (Not asking for code just advice before I start my little project)
On 07/17/2013 11:39 PM, Eric S. Johansson wrote: Not discourage you but this is a been there, done that kind of project. You could learn more from reading somebody else is code. What hasn't been done, and this would be very cool, is a chat program that works peer-to-peer with no central server. To do this, you would probably need to know about distributed hash tables and methods of piercing address translation firewalls (think UDP). University CS curricula across the world would disagree with your assessment of the usefulness of been there, done that. Indeed that's how you learn by doing simple things that have been done many times before, and discovering the magic of programming and software design. My uni's CS undergrad degree consists of dozens of contrived projects that have been done before. Web crawlers, compilers, expert systems, chat systems, word counters, etc. And that's the same way with all fields of endeavor. Indeed it'd be silly to tell an enthused hobby builder that building a shed is pointless as it's been done before. The shed itself, which would arguably be useful, is beside the point. -- http://mail.python.org/mailman/listinfo/python-list
Re: What does it take to implement a chat system in Python (Not asking for code just advice before I start my little project)
On 07/18/2013 12:19 PM, Owen Marshall wrote: Huh - I (foolishly) didn't realize gmane actually had NNTP, I've always used it to search mailing lists. If the list dumped to usenet (much like c.l.python) I'd post through sunsite.dk, which is a very nice usenet provider. But that still meant several annoying mailing list subscriptions. ... man, I'm really glad I read your post :-) I'm a bit confused. This list *is* c.l.python (I happen to read via e-mail through the mailing list). So you can reach it from sunsite.dk can you not? -- http://mail.python.org/mailman/listinfo/python-list
Re: Creating a Program to Decompose a Number and Run a Function on that Decomposition
On Jul 18, 2013 4:23 PM, CTSB01 scott.moore...@gmail.com wrote: File pyshell#9, line 2 ... rtn = [] ^ The ... is the continuation prompt from the interactive interpreter, not part of the code. Don't paste it into Python. -- http://mail.python.org/mailman/listinfo/python-list
Re: Creating a Program to Decompose a Number and Run a Function on that Decomposition
On Thursday, July 18, 2013 6:49:03 PM UTC-4, Ian wrote: On Jul 18, 2013 4:23 PM, CTSB01 scott.m...@gmail.com wrote: File pyshell#9, line 2 ... rtn = [] ^ The ... is the continuation prompt from the interactive interpreter, not part of the code. Don't paste it into Python. Thanks Ian. That worked regarding that issue. Now I have an 'invalid syntax' issue unfortunately. def phi_m(x,m): rtn = [] for n2 in range(0, len(x)*m - 2): n = n2 / m r = n2 - n * m rtn.append(m * x[n] + r * (x[n + 1] - x[n])) print 'n2 =', n2, ': n =', n, ' r =' , r, ' rtn =', rtn rtn on the line print 'n2 =', n2, ': n =', n, ' r =' , r, ' rtn =', rtn Is it something obvious? -- http://mail.python.org/mailman/listinfo/python-list
Re: Creating a Program to Decompose a Number and Run a Function on that Decomposition
On Thu, Jul 18, 2013 at 5:04 PM, CTSB01 scott.moore...@gmail.com wrote: Thanks Ian. That worked regarding that issue. Now I have an 'invalid syntax' issue unfortunately. def phi_m(x,m): rtn = [] for n2 in range(0, len(x)*m - 2): n = n2 / m r = n2 - n * m rtn.append(m * x[n] + r * (x[n + 1] - x[n])) print 'n2 =', n2, ': n =', n, ' r =' , r, ' rtn =', rtn rtn on the line print 'n2 =', n2, ': n =', n, ' r =' , r, ' rtn =', rtn Is it something obvious? Are you using Python 2 or 3? print has changed from a statement to a function, so the above syntax would be invalid in Python 3. -- http://mail.python.org/mailman/listinfo/python-list
Re: Creating a Program to Decompose a Number and Run a Function on that Decomposition
On Thu, Jul 18, 2013 at 5:42 PM, Ian Kelly ian.g.ke...@gmail.com wrote: On Thu, Jul 18, 2013 at 5:04 PM, CTSB01 scott.moore...@gmail.com wrote: Thanks Ian. That worked regarding that issue. Now I have an 'invalid syntax' issue unfortunately. def phi_m(x,m): rtn = [] for n2 in range(0, len(x)*m - 2): n = n2 / m r = n2 - n * m rtn.append(m * x[n] + r * (x[n + 1] - x[n])) print 'n2 =', n2, ': n =', n, ' r =' , r, ' rtn =', rtn rtn on the line print 'n2 =', n2, ': n =', n, ' r =' , r, ' rtn =', rtn Is it something obvious? Are you using Python 2 or 3? print has changed from a statement to a function, so the above syntax would be invalid in Python 3. Note also that in Python 3 you should change the line n = n2 / m to n = n2 // m because the syntax for integer division has also changed. And regardless of your Python version, the last line should probably be return rtn, not just rtn. -- http://mail.python.org/mailman/listinfo/python-list
Re: Creating a Program to Decompose a Number and Run a Function on that Decomposition
On Fri, 19 Jul 2013 00:04:33 +0100, CTSB01 scott.moore...@gmail.com wrote: On Thursday, July 18, 2013 6:49:03 PM UTC-4, Ian wrote: On Jul 18, 2013 4:23 PM, CTSB01 scott.m...@gmail.com wrote: File pyshell#9, line 2 ... rtn = [] ^ The ... is the continuation prompt from the interactive interpreter, not part of the code. Don't paste it into Python. Thanks Ian. That worked regarding that issue. Now I have an 'invalid syntax' issue unfortunately. def phi_m(x,m): rtn = [] for n2 in range(0, len(x)*m - 2): n = n2 / m r = n2 - n * m rtn.append(m * x[n] + r * (x[n + 1] - x[n])) print 'n2 =', n2, ': n =', n, ' r =' , r, ' rtn =', rtn rtn on the line print 'n2 =', n2, ': n =', n, ' r =' , r, ' rtn =', rtn Is it something obvious? Are you using Python 2.x or 3.x? That print statement is valid 2.x, but print is a function in Python 3, so the parameter need parentheses around them. This would all involve a lot less guesswork if you cut and pasted both your code and the error traceback. -- Rhodri James *-* Wildebeest Herder to the Masses -- http://mail.python.org/mailman/listinfo/python-list
Re: Creating a Program to Decompose a Number and Run a Function on that Decomposition
On 07/18/2013 07:04 PM, CTSB01 wrote: On Thursday, July 18, 2013 6:49:03 PM UTC-4, Ian wrote: On Jul 18, 2013 4:23 PM, CTSB01 scott.m...@gmail.com wrote: File pyshell#9, line 2 ... rtn = [] ^ The ... is the continuation prompt from the interactive interpreter, not part of the code. Don't paste it into Python. Thanks Ian. That worked regarding that issue. Now I have an 'invalid syntax' issue unfortunately. def phi_m(x,m): rtn = [] for n2 in range(0, len(x)*m - 2): n = n2 / m r = n2 - n * m rtn.append(m * x[n] + r * (x[n + 1] - x[n])) print 'n2 =', n2, ': n =', n, ' r =' , r, ' rtn =', rtn rtn on the line print 'n2 =', n2, ': n =', n, ' r =' , r, ' rtn =', rtn Is it something obvious? It's only obvious if you're using Python 3.x. You have forgotten the parentheses in the call to the print() function. On the other hand, if this is Python 2.x, I have no idea. Next time, please paste the actual error, not paraphrased. The error message includes a traceback. and a pointer to where in the line the error was detected. If it's pointing at the end of the second token, you must be running Python 3.x And since you're using that annoying googlegroups, see this: http://wiki.python.org/moin/GoogleGroupsPython -- DaveA -- http://mail.python.org/mailman/listinfo/python-list
Re: Creating a Program to Decompose a Number and Run a Function on that Decomposition
On Thursday, July 18, 2013 7:45:49 PM UTC-4, Ian wrote: On Thu, Jul 18, 2013 at 5:42 PM, Ian Kelly ian.g.ke...@gmail.com wrote: On Thu, Jul 18, 2013 at 5:04 PM, CTSB01 scott.moore...@gmail.com wrote: Thanks Ian. That worked regarding that issue. Now I have an 'invalid syntax' issue unfortunately. def phi_m(x,m): rtn = [] for n2 in range(0, len(x)*m - 2): n = n2 / m r = n2 - n * m rtn.append(m * x[n] + r * (x[n + 1] - x[n])) print 'n2 =', n2, ': n =', n, ' r =' , r, ' rtn =', rtn rtn on the line print 'n2 =', n2, ': n =', n, ' r =' , r, ' rtn =', rtn Is it something obvious? Are you using Python 2 or 3? print has changed from a statement to a function, so the above syntax would be invalid in Python 3. Note also that in Python 3 you should change the line n = n2 / m to n = n2 // m because the syntax for integer division has also changed. And regardless of your Python version, the last line should probably be return rtn, not just rtn. Thanks! I'm using 3.3.2. As I'm new to this, do you think it's a better idea to jump to 3.3.2 or stick with 2.7? I, for all intents and purposes, know neither. -- http://mail.python.org/mailman/listinfo/python-list
Re: Creating a Program to Decompose a Number and Run a Function on that Decomposition
It's only obvious if you're using Python 3.x. You have forgotten the parentheses in the call to the print() function. On the other hand, if this is Python 2.x, I have no idea. Next time, please paste the actual error, not paraphrased. The error message includes a traceback. and a pointer to where in the line the error was detected. If it's pointing at the end of the second token, you must be running Python 3.x And since you're using that annoying googlegroups, see this: http://wiki.python.org/moin/GoogleGroupsPython -- DaveA Hi Dave, There aren't any emails in the Cc slot so I imagine that part is fine, I will definitely edit the extra quotes though I made the mistake of thinking it was just google being google. For reference , I'm running Python 3.x. I'll try out putting the quotes around it. The full code is: def phi_m(x,m): rtn = [] for n2 in range(0, len(x)*m - 2): n = n2 / m r = n2 - n * m rtn.append(m * x[n] + r * (x[n + 1] - x[n])) print 'n2 =', n2, ': n =', n, ' r =' , r, ' rtn =', rtn rtn SyntaxError: invalid syntax where the second apostrophe in 'n2 =' is marked in orange. Thanks to everyone who's helped out so far, hopefully with some experience I'll be able sort out any syntax issues that come my way. -- http://mail.python.org/mailman/listinfo/python-list
Re: What does it take to implement a chat system in Python (Not asking for code just advice before I start my little project)
On 2013-07-18, Michael Torrie torr...@gmail.com wrote: On 07/18/2013 12:19 PM, Owen Marshall wrote: Huh - I (foolishly) didn't realize gmane actually had NNTP, I've always used it to search mailing lists. If the list dumped to usenet (much like c.l.python) I'd post through sunsite.dk, which is a very nice usenet provider. But that still meant several annoying mailing list subscriptions. ... man, I'm really glad I read your post :-) I'm a bit confused. This list *is* c.l.python (I happen to read via e-mail through the mailing list). So you can reach it from sunsite.dk can you not? Doesn't surprise me, I was confusing ;-) What I was saying was that my workflow used to be this: For maliing lists that dump to a newsgroup (c.l.python) I'd post to the group via usenet (sunsite.dk) For mailing lists that _do not_ have a direct newsgroup gateway (flask, etc.) I'd have to subscribe and read them in my mail client. So I used to think gmane was just a way of reading a bunch of mailing lists. *But now* I know it is much more - it's an NNTP == mail gateway that also has a web viewer. Now I can point my slrn to news.gmane.net and see the flask mailing list, ruby-talk, ... -- which I much prefer to using email. Again, perfectly obvious stuff had I actually _read_ the gmane FAQ. But who has time for that ;-) -- -owen -- http://mail.python.org/mailman/listinfo/python-list
Re: Creating a Program to Decompose a Number and Run a Function on that Decomposition
On 07/18/2013 08:35 PM, CTSB01 wrote: It's only obvious if you're using Python 3.x. You have forgotten the parentheses in the call to the print() function. On the other hand, if this is Python 2.x, I have no idea. Next time, please paste the actual error, not paraphrased. The error message includes a traceback. and a pointer to where in the line the error was detected. If it's pointing at the end of the second token, you must be running Python 3.x And since you're using that annoying googlegroups, see this: http://wiki.python.org/moin/GoogleGroupsPython -- DaveA Hi Dave, There aren't any emails in the Cc slot so I imagine that part is fine, I will definitely edit the extra quotes though I made the mistake of thinking it was just google being google. Exactly. And remember, the list is comp.lang.python, while googlegroups has tried to pre-empt it by bridging. Most of us get to it either through the nntp server at gmane.org or via email subscription at python-list-requ...@python.org For reference , I'm running Python 3.x. I'll try out putting the quotes around it. Parentheses, not quotes. print() is a function in 3.x The full code is: def phi_m(x,m): rtn = [] for n2 in range(0, len(x)*m - 2): n = n2 / m r = n2 - n * m rtn.append(m * x[n] + r * (x[n + 1] - x[n])) print 'n2 =', n2, ': n =', n, ' r =' , r, ' rtn =', rtn rtn SyntaxError: invalid syntax where the second apostrophe in 'n2 =' is marked in orange. Thanks to everyone who's helped out so far, hopefully with some experience I'll be able sort out any syntax issues that come my way. Don't paraphrase. Just copy/paste it into your email message. And I'm assuming you know to run things from the terminal window, and not from IDLE or something else that messes up the error messages. Your comment about 'orange' doesn't sound promising. As Ian pointed out, you have no return value in this function. You calculate something called 'rtn', but never use it. The last line accomplishes nothing, since rtn is neither assigned nor returned, nor passed nor... You probably wanted: return rtn -- DaveA -- http://mail.python.org/mailman/listinfo/python-list
Re: Creating a Program to Decompose a Number and Run a Function on that Decomposition
Thanks for the alternative links, I'll use gmane.org as an access point next
time.
Don't paraphrase. Just copy/paste it into your email message. And I'm
assuming you know to run things from the terminal window, and not from
IDLE or something else that messes up the error messages. Your comment
about 'orange' doesn't sound promising.
As Ian pointed out, you have no return value in this function. You
calculate something called 'rtn', but never use it. The last line
accomplishes nothing, since rtn is neither assigned nor returned, nor
passed nor... You probably wanted:
return rtn
Does something like
def phi_m(x, m):
rtn = []
for n2 in range(0, len(x) * m - 2):
n = n2 / m
r = n2 - n * m
rtn.append(m * x[n] + r * (x[n + 1] - x[n]))
print ('n2 =', n2, ': n =', n, ' r =' , r, ' rtn =', rtn)
return rtn
look right?
It doesn't seem to have any errors. However, I do receive the following error
when trying to implement an x after having defined phi:
x = [0, 1, 1, 2, 3]
phi_m(x, 2)
Traceback (most recent call last):
File pyshell#6, line 1, in module
phi_m(x, 2)
File pyshell#2, line 6, in phi_m
rtn.append(m * x[n] + r * (x[n + 1] - x[n]))
TypeError: list indices must be integers, not float
--
http://mail.python.org/mailman/listinfo/python-list
Re: Creating a Program to Decompose a Number and Run a Function on that Decomposition
On 07/18/2013 10:16 PM, CTSB01 wrote:
Does something like
def phi_m(x, m):
rtn = []
for n2 in range(0, len(x) * m - 2):
n = n2 / m
r = n2 - n * m
rtn.append(m * x[n] + r * (x[n + 1] - x[n]))
print ('n2 =', n2, ': n =', n, ' r =' , r, ' rtn =', rtn)
return rtn
look right?
No, as Ian has pointed out, you need to use the // operator in Python 3
if you want to get integer results. So it'd be n = n2 // m
However, even better is to use the divmod() function, which is intended
for the purpose:
n, r = divmod(n2, m)
It doesn't seem to have any errors. However, I do receive the following error
when trying to implement an x after having defined phi:
x = [0, 1, 1, 2, 3]
phi_m(x, 2)
Traceback (most recent call last):
File pyshell#6, line 1, in module
phi_m(x, 2)
File pyshell#2, line 6, in phi_m
rtn.append(m * x[n] + r * (x[n + 1] - x[n]))
TypeError: list indices must be integers, not float
That will be fixed if you correct the code as I described, so you'll get
integers.
There is a Brezenham algorith that might accomplish this whole function
more accurately, or more efficiently. But I'd have to re-derive it, as
it's been about 30 years since I used it. And chances are that the
efficiencies it brought to machine code won't matter much here.
--
DaveA
--
http://mail.python.org/mailman/listinfo/python-list
Re: Creating a Program to Decompose a Number and Run a Function on that Decomposition
On 19 Jul 2013 03:24, CTSB01 scott.moore...@gmail.com wrote:
Thanks for the alternative links, I'll use gmane.org as an access point
next time.
Don't paraphrase. Just copy/paste it into your email message. And I'm
assuming you know to run things from the terminal window, and not from
IDLE or something else that messes up the error messages. Your comment
about 'orange' doesn't sound promising.
As Ian pointed out, you have no return value in this function. You
calculate something called 'rtn', but never use it. The last line
accomplishes nothing, since rtn is neither assigned nor returned, nor
passed nor... You probably wanted:
return rtn
Does something like
def phi_m(x, m):
rtn = []
for n2 in range(0, len(x) * m - 2):
n = n2 / m
r = n2 - n * m
rtn.append(m * x[n] + r * (x[n + 1] - x[n]))
print ('n2 =', n2, ': n =', n, ' r =' , r, ' rtn =', rtn)
return rtn
look right?
It doesn't seem to have any errors. However, I do receive the following
error when trying to implement an x after having defined phi:
x = [0, 1, 1, 2, 3]
phi_m(x, 2)
Traceback (most recent call last):
File pyshell#6, line 1, in module
phi_m(x, 2)
File pyshell#2, line 6, in phi_m
rtn.append(m * x[n] + r * (x[n + 1] - x[n]))
TypeError: list indices must be integers, not float
When you think about it, it makes sense. If you have a list, say,
[2, 5, 1]
You can say, I want the first item (0) or the third item(2) but never, the
one-and-a-halfeth (0.5) item. Python only accepts integer values when
accessing list items.
To access list items, convert your index into an integer value.
--
http://mail.python.org/mailman/listinfo/python-list
Re: Creating a Program to Decompose a Number and Run a Function on that Decomposition
On Thursday, July 18, 2013 10:48:23 PM UTC-4, Fábio Santos wrote:
On 19 Jul 2013 03:24, CTSB01 scott.m...@gmail.com wrote:
Thanks for the alternative links, I'll use gmane.org as an access point
next time.
Don't paraphrase. Just copy/paste it into your email message. And I'm
assuming you know to run things from the terminal window, and not from
IDLE or something else that messes up the error messages. Your comment
about 'orange' doesn't sound promising.
As Ian pointed out, you have no return value in this function. You
calculate something called 'rtn', but never use it. The last line
accomplishes nothing, since rtn is neither assigned nor returned, nor
passed nor... You probably wanted:
return rtn
Does something like
def phi_m(x, m):
rtn = []
for n2 in range(0, len(x) * m - 2):
n = n2 / m
r = n2 - n * m
rtn.append(m * x[n] + r * (x[n + 1] - x[n]))
print ('n2 =', n2, ': n =', n, ' r =' , r, ' rtn =', rtn)
return rtn
look right?
It doesn't seem to have any errors. However, I do receive the following
error when trying to implement an x after having defined phi:
x = [0, 1, 1, 2, 3]
phi_m(x, 2)
Traceback (most recent call last):
File pyshell#6, line 1, in module
phi_m(x, 2)
File pyshell#2, line 6, in phi_m
rtn.append(m * x[n] + r * (x[n + 1] - x[n]))
TypeError: list indices must be integers, not float
When you think about it, it makes sense. If you have a list, say,
[2, 5, 1]
You can say, I want the first item (0) or the third item(2) but never, the
one-and-a-halfeth (0.5) item. Python only accepts integer values when
accessing list items.
To access list items, convert your index into an integer value.
Thanks Fabio. Is there a statement that lets me specify that I only need it to
take the integer values?
--
http://mail.python.org/mailman/listinfo/python-list
Re: Creating a Program to Decompose a Number and Run a Function on that Decomposition
On Thursday, July 18, 2013 10:43:11 PM UTC-4, Dave Angel wrote:
On 07/18/2013 10:16 PM, CTSB01 wrote:
Does something like
def phi_m(x, m):
rtn = []
for n2 in range(0, len(x) * m - 2):
n = n2 / m
r = n2 - n * m
rtn.append(m * x[n] + r * (x[n + 1] - x[n]))
print ('n2 =', n2, ': n =', n, ' r =' , r, ' rtn =', rtn)
return rtn
look right?
No, as Ian has pointed out, you need to use the // operator in Python 3
if you want to get integer results. So it'd be n = n2 // m
However, even better is to use the divmod() function, which is intended
for the purpose:
n, r = divmod(n2, m)
It doesn't seem to have any errors. However, I do receive the following
error when trying to implement an x after having defined phi:
x = [0, 1, 1, 2, 3]
phi_m(x, 2)
Traceback (most recent call last):
File pyshell#6, line 1, in module
phi_m(x, 2)
File pyshell#2, line 6, in phi_m
rtn.append(m * x[n] + r * (x[n + 1] - x[n]))
TypeError: list indices must be integers, not float
That will be fixed if you correct the code as I described, so you'll get
integers.
There is a Brezenham algorith that might accomplish this whole function
more accurately, or more efficiently. But I'd have to re-derive it, as
it's been about 30 years since I used it. And chances are that the
efficiencies it brought to machine code won't matter much here.
--
DaveA
Thanks Dave, I'll take a look at that.
--
http://mail.python.org/mailman/listinfo/python-list
[issue18488] sqlite: finalize() method of user function may be called with an exception set if a call to step() method failed
Serhiy Storchaka added the comment: I think both (PyException_SetContext), as in Python code. See textiowrapper_close() in Modules/_io/textio.c for example. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18488 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18373] implement sys.get/setbyteswarningflag()
Antoine Pitrou added the comment: if (perhaps someone is calling your library and passing it the wrong type) they would be guarded against this common error. OTOH, if your library is concerned about unwanted bytes objects, you can add an explicit type check. That said, I don't see any counter-argument against this proposal; only that I'm not sure it's very useful. -- nosy: +pitrou ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18373 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18373] implement sys.get/setbyteswarningflag()
Antoine Pitrou added the comment: I don't know why your patch is putting this in the thread state, though... -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18373 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17911] Extracting tracebacks does too much work
Antoine Pitrou added the comment: I think ExceptionSummary could be the visible API, instead of adding an indirection through a separate global function. Also, I don't think having the exc_traceback list of tuples is future-proof. What if we want to add some information to each traceback entry, or refactor it to take __loader__ into account? Instead, ExceptionSummary could expose the desired operations (e.g. iterate over traceback lines and the associated source code lines) without being constrained by some implementation details. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17911 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18451] Omit test files in devinabox coverage run
Antoine Pitrou added the comment: Is it common practice to ignore test files in coverage reports? It sounds like not omitting them can help you find out if e.g. some tests are not run by mistake. -- nosy: +pitrou ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18451 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue16611] multiple problems with Cookie.py
Julien Phalip added the comment: I'm attaching a suggested patch to fix the issues relating to serializing/deserializing the httponly and secure flags. The main idea is that for a flag to be active, it needs to both be set and have the True value. I think this is a much more correct and saner approach than the current implementation. As it's been discussed previously, currently the httponly and secure flag are systematically given the empty string as default value when instantiating a Morsel object. So one would infer that the empty string means that the flags are inactive. However, when deserializing a Morsel object, the empty string is used to indicate that a flag is active. Both behaviors contradict each other. While the suggested change is backwards-incompatible, it would break the code of developers relying on an inconsistent behavior. So perhaps this might be compelling enough to allow breaking backwards compatibility in this case. Let me know what you think. Thanks! -- keywords: +patch nosy: +julien.phalip versions: -Python 2.7 Added file: http://bugs.python.org/file30962/cookies-httponly-secure.diff ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue16611 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue9177] ssl.read/write on closed socket raises AttributeError
Antoine Pitrou added the comment: Thanks for the patch, I will take a look. -- stage: needs patch - patch review versions: +Python 3.4 -Python 3.3 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue9177 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue14518] Add bcrypt $2a$ to crypt.py
Antoine Pitrou added the comment: Apparently, Django supports of variant of that format: https://docs.djangoproject.com/en/1.4/topics/auth/#using-bcrypt-with-django -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue14518 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18379] SSLSocket.getpeercert(): OCSP and CRL DP URIs
Antoine Pitrou added the comment: Do you have to put those certs in capath? Things would probably be simpler if you didn't have to trigger capath loading using an actual SSL connection. Also, please a versionadded tag in the doc entry. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18379 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18381] unittest warnings counter
Changes by Antoine Pitrou pit...@free.fr: -- nosy: +rbcollins ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18381 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18425] IDLE Unit test for IdleHistory.py
R. Jayakrishnan added the comment: Thanks Terry for we have the option of gui tests when mocking becomes too complicated I put two separate classes IdleHistoryMockTest and IdleHistoryTKTest for mock and TK text usages and used TK Text to test IdleHistory.history_do function. This worked for me and hopefully IMHO the logic behind history_do is tested enough for now. -- Added file: http://bugs.python.org/file30963/test_idlehistory2.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18425 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17214] http.client.HTTPConnection.putrequest encode error
Vajrasky Kok added the comment:
The script for demonstrating bug can be simplified to:
---
import urllib.request
url =
http://www.libon.it/ricerca/7817940/3499155443/dettaglio/3102314/Onkel-Oswald-und-der-Sudan-Käfer/order/date_desc;
req = urllib.request.Request(url)
response = urllib.request.urlopen(req, timeout=30)
the_page = response.read().decode('utf-8')
print(the_page)
---
Attached the simple patch to solve this problem.
The question is whether we should fix this problem in urllib or not because
strictly speaking the url should be ascii characters only. But if the Firefox
can open this url, why not urllib?
I will contemplate about this problem and if I (or other people) think that
urllib should handle url containing non-ascii characters, then I will add
additional unit test.
Until then, people can use third party package, which is
request package from http://docs.python-requests.org/en/latest/
r =
requests.get(http://www.libon.it/ricerca/7817940/3499155443/dettaglio/3102314/Onkel-Oswald-und-der-Sudan-Käfer/order/date_desc;)
print(r.text)
--
nosy: +vajrasky
Added file:
http://bugs.python.org/file30964/patch_to_urllib_handle_non_ascii_char_in_url.txt
___
Python tracker rep...@bugs.python.org
http://bugs.python.org/issue17214
___
___
Python-bugs-list mailing list
Unsubscribe:
http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18490] Error embedding datetime in C++
New submission from abdulet: Hi all, I'm ebedding a python program into C++ ecap library. Everything works fine until I'v try to import sqlite3. When I try to import it I give the following exception: Traceback (most recent call last): ', ' File /usr/local/squid/bin/putAdds.py, line 4, in module import sqlite3 ', ' File /usr/lib/python2.7/sqlite3/__init__.py, line 24, in module from dbapi2 import * ', ' File /usr/lib/python2.7/sqlite3/dbapi2.py, line 24, in module import datetime ', 'ImportError: /usr/lib/python2.7/lib-dynload/datetime.i386-linux-gnu.so: undefined symbol: PyExc_SystemError So it seems that is a problem in datetime module. How can i solve that? Thanks and regards Abdul -- components: Extension Modules messages: 193280 nosy: abduelt priority: normal severity: normal status: open title: Error embedding datetime in C++ versions: Python 2.7 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18490 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18490] Error embedding datetime in C++
Christian Heimes added the comment: Hello Abdulet, the issue tracker isn't the best place to get help for your problem. May I suggest that you write a mail to the Python user list or one of the more specialized lists like the CAPI SIG and C++ SIG? http://mail.python.org/mailman/listinfo -- nosy: +christian.heimes resolution: - invalid status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18490 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue14518] Add bcrypt $2a$ to crypt.py
Christian Heimes added the comment: The crypt module is just a thin wrapper around crypt(3). Some operating systems have support for $2a$ but apparently I don't have one at home. Django uses https://code.google.com/p/py-bcrypt/source/browse/#hg%2Fbcrypt http://linux.die.net/man/3/crypt -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue14518 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18379] SSLSocket.getpeercert(): OCSP and CRL DP URIs
Christian Heimes added the comment: It's just one certificate. The hash format of OpenSSL has changed over the years so we have to duplicate all certificates. But I don't need the extra stuff. I figured out that the Nokia test certificate has all new fields. My initial patch has a versionchanged doc update. Did you have too much French wine again? *scnr* :) -- Added file: http://bugs.python.org/file30965/ssl_ocsp_crldp2.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18379 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18490] Error embedding datetime in C++
abdulet added the comment: Ok it looks like a bug for me, sorry for the inconveniences Thanks and regards Abdul TECNOCOM Abdul Pallarès Calvi Técnico Especialista Sistemas gestionados Entença, 335 Barcelona 08029 Tel. Fijo: (+34) 934953167 Tel. Móvil / Fax: (+34) 647970296 / (+34) email: abdul.palla...@tecnocom.es http://www.tecnocom.es Por favor, antes de imprimir este mensaje, asegúrate de que es necesario. Ayudemos a cuidar el medio ambiente Este mensaje puede contener información confidencial o privilegiada. Si le ha llegado por error, rogamos no haga uso del mismo, avise al remitente y bórrelo. Consulte aviso legal This message may contain confidential or privileged information. If it has been sent to you in error, please do not use it, notify the sender of the error and delete it. SPAN style=FONT-SIZE: 7pt; COLOR: gr De: Christian Heimes rep...@bugs.python.org Enviat el: dijous, 18 / juliol / 2013 13:13 Per a: Pallares Calvi, Abdul Sabur Tema: [issue18490] Error embedding datetime in C++ Christian Heimes added the comment: Hello Abdulet, the issue tracker isn't the best place to get help for your problem. May I suggest that you write a mail to the Python user list or one of the more specialized lists like the CAPI SIG and C++ SIG? http://mail.python.org/mailman/listinfo -- nosy: +christian.heimes resolution: - invalid status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18490 ___ -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18490 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18379] SSLSocket.getpeercert(): OCSP and CRL DP URIs
Antoine Pitrou added the comment: It's just one certificate. Indeed, it's just the decision to use capath that I'm arguing with. My initial patch has a versionchanged doc update. Did you have too much French wine again? *scnr* :) Not *too much*, no ;-) -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18379 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17214] http.client.HTTPConnection.putrequest encode error
Christian Heimes added the comment: The problem may not be a bug but a deliberate design choice. urllib is rather low level and doesn't implement some browser magic. Browsers handle stuff like 'ä' - '%C3%A4', ' ' - '%20' or IDNA but urllib doesn't. I always saw it as may responsibility to quote and encode everything myself. Higher level APIs such as requests are free to implement browser magic. Contrary to common believes an URL with an umlaut or space is *not* a valid URI. From http://docs.python.org/3/library/urllib.request.html#urllib.request.Request url should be a string containing a valid URL. I suggest that this ticket shall be closed as won't fix. -- nosy: +christian.heimes ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17214 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18373] implement sys.get/setbyteswarningflag()
Daniel Holth added the comment: On Thu, Jul 18, 2013, at 04:22 AM, Antoine Pitrou wrote: Antoine Pitrou added the comment: I don't know why your patch is putting this in the thread state, though... If you have multiple threads one thread might want exceptions when str(bytes), and the other might not. str(bytes) has been an insidious problem for me. No exceptions, seemingly working code, and b'' in serialized data. I am motivated to turn it off. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18373 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18373] implement sys.get/setbyteswarningflag()
Antoine Pitrou added the comment: I don't know why your patch is putting this in the thread state, though... If you have multiple threads one thread might want exceptions when str(bytes), and the other might not. That sounds too much of a special case to me. You can still catch BytesWarnings inside a context manager or something. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18373 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18468] re.group() should never return a bytearray
Ezio Melotti added the comment: I'm not sure it's worth changing it. As I see it, match/search are supposed to work with str or bytes and they return str/bytes accordingly. The fact that they work with other bytes-like objects seems to me an undocumented implementation detail people should not rely on. If they are passing bytes-like object, both the current behavior (return same type) or the new proposed behavior (always return bytes) seem reasonable expectations. IIUC the advantage of changing the behavior is that it won't keep the target string alive anymore, but on the other hand is not backward compatible and makes things more difficult for people who want the same type back. If people always want bytes back regardless of the input, they can convert the input or output to bytes explicitly. -- components: +Regular Expressions nosy: +ezio.melotti, mrabarnett ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18468 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18451] Omit test files in devinabox coverage run
Brett Cannon added the comment: The key problem with keeping them is that beginners might mistake that a test didn't run simply because some resource wasn't available when the tests were run (e.g. I forget to run the coverage report so I do it on an airport to the conference and have no Internet). Plus if you find this out you need to know hours in advance as a complete coverage run takes quite a while. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18451 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18451] Omit test files in devinabox coverage run
Antoine Pitrou added the comment: The key problem with keeping them is that beginners might mistake that a test didn't run simply because some resource wasn't available when the tests were run (e.g. I forget to run the coverage report so I do it on an airport to the conference and have no Internet). Plus if you find this out you need to know hours in advance as a complete coverage run takes quite a while. I don't understand what the problem is. The coverage shows you precisely what was run and what wasn't. How is it a bug? -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18451 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18468] re.group() should never return a bytearray
Matthew Barnett added the comment: There's also the fact that the match object keeps a reference to the target string anyway: import re t = memoryview(ba) t memory at 0x0100F110 m = re.match(ba, t) m.string memory at 0x0100F110 On that subject, buried in the source code (_sre.c) is the comment: /* FIXME: implement setattr(string, None) as a special case (to detach the associated string, if any */ In the regex module I added a method detach_string to perform that function. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18468 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18373] implement sys.get/setbyteswarningflag()
R. David Murray added the comment: I presume you mean you are motivated to turn it on (to catch the bugs). I still think that also fixing the bugs in the other places str(bytes) is used would be better. Are they occurring in third party libraries? How often do you run into it? -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18373 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17911] Extracting tracebacks does too much work
Björn Sandberg Lynch added the comment: I was trying to stay with the established pattern of the existing methods. There are two unrelated issues to solve here - deferring linecache access, and the extract_exception functionality. When it comes to deferral, we could wrap each line in a different class than tuple, but this constitutes a public API change (and this is a *very* widely used library). Even changing to a namedtuple would cause a lot of grief, since we'd break lots of doctests, and subclassing tuple is a lot of effort for little benefit. If we only do it for the deferred usage, it would only be inconsistent. I suppose we could have a completely separate way of doing things for ExceptionSummary, but again, inconsistent, and I think if one extract_xxx method provides the functionality, users would expect it to be available in the others. For ExceptionSummary, the same summary instance is used more than once if you have a cause set, so object creation had to be separated from the graph population. Either this is done in a constructor function or we would need some obscure tricks with the class kwargs. This way, there's a separation of concerns - the class wraps *one* exception, and the function creates a bunch and links them together as needed. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17911 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18468] re.group() should never return a bytearray
Ezio Melotti added the comment: match/search are supposed to work with str or bytes and they return str/bytes accordingly. s/they return/calling m.group() returns/ -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18468 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17911] Extracting tracebacks does too much work
Antoine Pitrou added the comment: When it comes to deferral, we could wrap each line in a different class than tuple, but this constitutes a public API change (and this is a *very* widely used library). Even changing to a namedtuple would cause a lot of grief, since we'd break lots of doctests, and subclassing tuple is a lot of effort for little benefit. If we only do it for the deferred usage, it would only be inconsistent. I suppose we could have a completely separate way of doing things for ExceptionSummary, but again, inconsistent, and I think if one extract_xxx method provides the functionality, users would expect it to be available in the others. YMMV, but I think we should go for inconsistency here. The other APIs in the traceback module are low-level and clearly limited by the type of objects they return. This feature request is a good opportunity to design something a little more future-proof. I'd love to know what other developers/contributors think here. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17911 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18451] Omit test files in devinabox coverage run
Brett Cannon added the comment: The problem is confusing new contributors. Why wasn't this test run? Because you're not on OS X. Why wasn't this run? I didn't have internet at the time. It's noise that's unnecessary. People should be focusing on the coverage of the modules in the stdlib and not the tests themselves. Plus the process takes so darn long already I don't think it's worth the time to waste on covering the tests as well. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18451 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue16611] multiple problems with Cookie.py
John Dennis added the comment: I think your basic approach is fine and it's O.K. to break backwards compatibility. I'm not sure anyone was using the httponly and secure flags in the past because it was so broken, the logic was completely contradictory, so backwards compatibility should not trump fixing obviously broken logic. I didn't review your patch carefully, just a really quick glance. The one thing that did pop out was compiling the static regexp every time the function is called. Why not make it a module or class object and compile once at load time? -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue16611 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18451] Omit test files in devinabox coverage run
Antoine Pitrou added the comment: The problem is confusing new contributors. Why wasn't this test run? Because you're not on OS X. Why wasn't this run? I didn't have internet at the time. Well, you're trying to fix a symptom, rather than the underlying cause. And the concept of skipped tests is quite basic, it shouldn't be very hard to grasp. It's noise that's unnecessary. People should be focusing on the coverage of the modules in the stdlib and not the tests themselves. Plus the process takes so darn long already I don't think it's worth the time to waste on covering the tests as well. Whether or not the report includes the test files shouldn't impact the test runtime. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18451 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18491] Add exe wrapper functionality to Windows launcher
New submission from Paul Moore: Adds exe wrapper functionality to the Windows launcher. This is a preliminary patch, for comments - the code is there and works, but I need to add documentation (and maybe tests - are there any existing tests for the launcher?) Also to be considered: should the launcher be bundled somewhere accessible to Python code (locating where the launcher has been installed is a non-trivial task) and supplementing that, should there be some sort of wrapper creation API in the standard library. The script wrapper functionality in distlib may be a good model for this, but may be too complex. I'd rather see this patch accepted without support code than see it deferred due to concerns about the quality/design of additional support code. -- assignee: vinay.sajip components: Windows messages: 193300 nosy: pmoore, vinay.sajip priority: normal severity: normal stage: patch review status: open title: Add exe wrapper functionality to Windows launcher type: enhancement versions: Python 3.4 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18491 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18491] Add exe wrapper functionality to Windows launcher
Changes by Paul Moore p.f.mo...@gmail.com: -- keywords: +patch Added file: http://bugs.python.org/file30966/launcher_wrapper.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18491 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18491] Add exe wrapper functionality to Windows launcher
Changes by Paul Moore p.f.mo...@gmail.com: -- nosy: +tim.golden ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18491 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17933] test_ftp failure / ftplib error formatting issue
Changes by Ezio Melotti ezio.melo...@gmail.com: -- nosy: +ezio.melotti ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17933 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17933] test_ftp failure / ftplib error formatting issue
Giampaolo Rodola' added the comment:
I cannot reproduce the issue on Ubuntu.
As for the second exception I think it's safe to just do:
- raise URLError('ftp error: %d' % reason) from reason
+ raise URLError('ftp error: %s' % reason) from reason
(will commit that later)
--
___
Python tracker rep...@bugs.python.org
http://bugs.python.org/issue17933
___
___
Python-bugs-list mailing list
Unsubscribe:
http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18468] re.group() should never return a bytearray
Guido van Rossum added the comment:
Ezio Melotti added the comment:
[...]
IIUC the advantage of changing the behavior is that it won't keep the target
string alive anymore, but on the other hand is not backward compatible and
makes things more difficult for people who want the same type back.
Everyone seems to be afraid of backward compatibility here. I will
take full responsibility, so let's just discuss what's the better API,
regardless of what we did (and in 99% of the cases it's the same
anyway).
People who want the same type back -- there is no evidence that
anyone wants this. People who want a bytes object -- this is
definitely a valid use case.
If people always want bytes back regardless of the input, they can convert
the input or output to bytes explicitly.
But this requires an extra copy if the input is a bytearray. I suspect
this might be the most commonly used non-bytes non-str target in
Python 3 programs, and we are striving to support bytearray as input
in as many places as possible where plain bytes is accepted. But
generally getting bytearray as output requires a different API, e.g.
recv_into().
I think a very reasonable general rule is that for functions that take
either str or bytes and adjust their output to the input type, if
their input is one of the bytes alternatives (bytearray, memoryview,
array.array('b'), maybe others) the output is always a bytes object.
The reason is that while the buffer API makes it easy to access the
underlying bytes from C, it doesn't give you a way to create a new
object of the same type (except by slicing, which doesn't always
apply, e.g. os.listdir()). So for creating return values that match a
memoryview (or bytearray, etc.) input, the only reasonable thing is to
return a bytes object.
(FWIW os.listdir() violates this too -- os.listdir(b'.') returns a
list of bytes objects, while os.listdir(bytearray(b'.')) returns a
list of str objects. This seems caused by revesed logic -- it probably
tests if the type is bytes rather than if the type isn't str for
the output type, even though it does the right thing with the
input...)
--
___
Python tracker rep...@bugs.python.org
http://bugs.python.org/issue18468
___
___
Python-bugs-list mailing list
Unsubscribe:
http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17933] test_ftp failure / ftplib error formatting issue
Rock Lee added the comment:
Bug in urllib/request.py.
format string formatted error type variable
2373 except ftplib.error_perm as reason:
2374 raise URLError('ftp error: %d' % reason) from reason
variable reason here is a instance of class ftplib.error_perm.
We need to passed in a integer object.
Patch supplied.
--
keywords: +patch
nosy: +rock
Added file:
http://bugs.python.org/file30967/urllib-request-format-type-bug.patch
___
Python tracker rep...@bugs.python.org
http://bugs.python.org/issue17933
___
___
Python-bugs-list mailing list
Unsubscribe:
http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17933] test_ftp failure / ftplib error formatting issue
Rock Lee added the comment:
Fixed like this:
raise URLError('ftp error: %d' % int(str(reason)[:3])) from reason
I think this is the original author's intention.
Actually, need to fix two places in urllib/request.py
--
___
Python tracker rep...@bugs.python.org
http://bugs.python.org/issue17933
___
___
Python-bugs-list mailing list
Unsubscribe:
http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17933] test_ftp failure / ftplib error formatting issue
Giampaolo Rodola' added the comment: That's not safe as a misbehaving FTP server might not send a response code at all (highly unlikely but still...). Furthermore having the complete server response (response code + accompaining message) is a lot more helpful. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17933 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17214] http.client.HTTPConnection.putrequest encode error
Vajrasky Kok added the comment:
I have no problem if this ticket is classified as won't fix.
I am writing this for the confused souls who want to use urllib to access url
containing non-ascii characters:
import urllib.request
from urllib.parse import quote
url =
http://www.libon.it/ricerca/7817940/3499155443/dettaglio/3102314/Onkel-Oswald-und-der-Sudan-Käfer/order/date_desc;
req = urllib.request.Request(url)
try:
req.selector.encode('ascii')
except UnicodeEncodeError:
req.selector = quote(req.selector)
response = urllib.request.urlopen(req, timeout=30)
the_page = response.read().decode('utf-8')
print(the_page)
--
___
Python tracker rep...@bugs.python.org
http://bugs.python.org/issue17214
___
___
Python-bugs-list mailing list
Unsubscribe:
http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17933] test_ftp failure / ftplib error formatting issue
Rock Lee added the comment: yes, the malformed server could do evil things. If we need to cover this situation, we need to some extra fixes in this file. Maybe the exception message look like this is the better one ? ftplib.error_perm: 550 Failed to change directory -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17933 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
