Re: Too many python installations. Should i remove them all and install the latest?
On Sat, Jun 1, 2013 at 3:35 PM, Νικόλαος Κούρας nikos.gr...@gmail.com wrote: Can you please tell me HOW TO GET RID OF ALL PYTHON SETUPS except 2.6 that is needed for system core and then just install 3.3.2? Nuke the hard drive from orbit. It's the only way to be sure. also why cant i install 3.3.2 using yum. if i could instead of building from source then i wouldn't have this installed mess but i could simply yum remove python* That would require that the repo have a 3.3.2 build in it. I don't know the Red Hat / CentOS policies there, but I know Debian stable wouldn't have anything so new - it takes time to test things. ChrisA -- http://mail.python.org/mailman/listinfo/python-list
Re: netcdF4 variables
On 01.06.2013 05:30, Sudheer Joseph wrote: some hing like a list xx=nc,variables[:] should get me all variable names with out other surrounding stuff?? In [4]: ncf.variables Out[4]: OrderedDict([(u'LON', netCDF4.Variable object at 0x254aad0), [SNIP] It looks like variables is an OrderedDict. Thus ncf.variables.keys() should return a view (or list, depending on your python version) of all keys, i.e. all variable names. Bye, Andreas -- http://mail.python.org/mailman/listinfo/python-list
RE: Short-circuit Logic
From: steve+comp.lang.pyt...@pearwood.info Subject: Re: Short-circuit Logic Date: Fri, 31 May 2013 08:45:13 + To: python-list@python.org On Fri, 31 May 2013 17:09:01 +1000, Chris Angelico wrote: On Fri, May 31, 2013 at 3:13 PM, Steven D'Aprano steve+comp.lang.pyt...@pearwood.info wrote: What makes you think that the commutative law is relevant here? Equality should be commutative. If a == b, then b == a. Also, it's generally understood that if a == c and b == c, then a == b, though there are more exceptions to that (especially in loosely-typed languages). Who is talking about equality? Did I just pass through the Looking Glass into Wonderland again? *wink* We're talking about *approximate equality*, which is not the same thing, despite the presence of the word equality in it. It is non-commutative, just like other comparisons like less than and greater than or equal to. Nobody gets their knickers in a twist because the= operator is non- commutative. Approximately equality CAN be commutative! I have just showed you that in the beginning using the following criteria: |v-u| = ε*max(|u|,|v|) Which is implemented as fpc_aeq(): def fpc_aeq(u,v,eps=sys.float_info.epsilon): au=abs(u) av=abs(v) return abs(v-u) = (eps*(au if auav else av)) # |v-u| = ε*max(|u|,|v|) Approximate equality is not just non-commutative, it's also intransitive. I'm reminded of a story about Ken Iverson, the creator of APL. Iverson was a strong proponent of what he called tolerant equality, and APL defined the = operator as a relative approximate equal, rather than the more familiar exactly-equal operator most programming languages use. In an early talk Ken was explaining the advantages of tolerant comparison. A member of the audience asked incredulously, “Surely you don’t mean that when A=B and B=C, A may not equal C?” Without skipping a beat, Ken replied, “Any carpenter knows that!” and went on to the next question. — Paul Berry That's true! But it's a consequence of floating points (discretes representing a continuous set -- real numbers). Out of context, as you put it, looks like approximate equality is non-commutative, but that's wrong. Did you read the paper[1] you have suggested? Because SHARP APL in fact uses the same criteria I have mentioned and it supports it extensively to the point of applying it by default to many primitive functions, according to Lathwell[2] wich is reference 19 of [1]. less than ab less than or equal a≤b equal a=b greater than or equal a≥b greater than ab not equal a≠b floor ⌊a ceiling ⌈a membership a∊b index of a⍳b I'll quote Lathwell. He called tolerant comparison what we are now calling approximate equality. Tolerant comparison considers two numbers to be equal if they are within some neighborhood. The neighborhood has a radius of ⎕ct times the larger of the two in absolute value. He says larger of the two which means max(|u|,|v|). So, you reference just reaffirms what TAOCP have demonstrated to be the best practice. I really don't know what the fuck you are arguing about? Can you show me at least one case where the commutative law wouldn't benefit the use of the approximate equality operator? [1] http://www.jsoftware.com/papers/APLEvol.htm [2] http://www.jsoftware.com/papers/satn23.htm The intransitivity of [tolerant] equality is well known in practical situations and can be easily demonstrated by sawing several pieces of wood of equal length. In one case, use the first piece to measure subsequent lengths; in the second case, use the last piece cut to measure the next. Compare the lengths of the two final pieces. — Richard Lathwell, APL Comparison Tolerance, APL76, 1976 See also here: http://www.jsoftware.com/papers/APLEvol.htm (search for fuzz or tolerance. -- Steven -- http://mail.python.org/mailman/listinfo/python-list -- http://mail.python.org/mailman/listinfo/python-list
Re: Apache and suexec issue that wont let me run my python script
Τη Σάββατο, 1 Ιουνίου 2013 8:38:17 π.μ. UTC+3, ο χρήστης Chris Angelico έγραψε: You posted it FIFTEEN HOURS AGO on a low-traffic forum. Sheesh! Learn a little patience. I think this is enough time for to get an answer, i dont think so meone would answer from there but if you know some other list i can sk this question please let me knwo and i'll ask there. All my script are python 3.x readyand koukos.py is as well, oits just that damn suexec issue that doesnt let my last script that all it does is to set a cookie to work properly. If you kwno the answer please advise me what it needs to be done. This will be my last question, all other issues have been taker care of. -- http://mail.python.org/mailman/listinfo/python-list
Re: Too many python installations. Should i remove them all and install the latest?
Τη Σάββατο, 1 Ιουνίου 2013 9:18:26 π.μ. UTC+3, ο χρήστης Chris Angelico έγραψε: That would require that the repo have a 3.3.2 build in it. I don't know the Red Hat / CentOS policies there, but I know Debian stable wouldn't have anything so new - it takes time to test things. Is there a way to change to some repo that contain the latest python 3.3.2 to yo yum it? Do you advise me to have the peple that iam paiding the VPS to switch me from CentOS 6.4 to ubuntu or even better debian? -- http://mail.python.org/mailman/listinfo/python-list
Re: Too many python installations. Should i remove them all and install the latest?
On Sat, Jun 1, 2013 at 5:51 PM, Νικόλαος Κούρας nikos.gr...@gmail.com wrote: Τη Σάββατο, 1 Ιουνίου 2013 9:18:26 π.μ. UTC+3, ο χρήστης Chris Angelico έγραψε: That would require that the repo have a 3.3.2 build in it. I don't know the Red Hat / CentOS policies there, but I know Debian stable wouldn't have anything so new - it takes time to test things. Is there a way to change to some repo that contain the latest python 3.3.2 to yo yum it? Do you advise me to have the peple that iam paiding the VPS to switch me from CentOS 6.4 to ubuntu or even better debian? I advise you to follow the recommendations of the Matrix Oracle and make up rest of quote elided. ChrisA -- http://mail.python.org/mailman/listinfo/python-list
Re: Apache and suexec issue that wont let me run my python script
On Sat, Jun 1, 2013 at 5:49 PM, Νικόλαος Κούρας nikos.gr...@gmail.com wrote: Τη Σάββατο, 1 Ιουνίου 2013 8:38:17 π.μ. UTC+3, ο χρήστης Chris Angelico έγραψε: You posted it FIFTEEN HOURS AGO on a low-traffic forum. Sheesh! Learn a little patience. I think this is enough time for to get an answer, i dont think so meone would answer from there but if you know some other list i can sk this question please let me knwo and i'll ask there. Did you follow the usual rule of lurking on a list before posting? Or at very least, reading the archive? I just quickly Googled the newsgroup name and found the archive. When you see a newsgroup that gets only a handful of posts a month, you can NOT expect up-to-the-minute responses. Actually, you can't expect that EVER. Now learn a little patience and courtesy. http://www.catb.org/esr/faqs/smart-questions.html ChrisA -- http://mail.python.org/mailman/listinfo/python-list
RE: Python Magazine
Date: Fri, 31 May 2013 04:11:06 -0700 Subject: Re: Python Magazine From: rama29...@gmail.com To: python-list@python.org Hello all, Was busy with work. Finally finished the job of registering the domain name. Will be live soon. The url is http://pythonmagazine.org. Hope we will be live soon. Regards, DRJ. -- http://mail.python.org/mailman/listinfo/python-list Nice! Wish you luck! Do you have sponsors? Advertisers? What's the plan? -- http://mail.python.org/mailman/listinfo/python-list
Re: Too many python installations. Should i remove them all and install the latest?
On 01Jun2013 00:51, =?utf-8?B?zp3Or866zr/PgiDOk866z4EzM866?= nikos.gr...@gmail.com wrote: | Τη Σάββατο, 1 Ιουνίου 2013 9:18:26 π.μ. UTC+3, ο χρήστης Chris Angelico έγραψε: | That would require that the repo have a 3.3.2 build in it. I don't | know the Red Hat / CentOS policies there, but I know Debian stable | wouldn't have anything so new - it takes time to test things. | | Is there a way to change to some repo that contain the latest python 3.3.2 to yo yum it? I asked Google: extra yum repositories for centos and it pointed me at: http://wiki.centos.org/AdditionalResources/Repositories Probably one of these has Python 3. Or build it from source; it's not hard. -- Cameron Simpson c...@zip.com.au Luge strategy? Lie flat and try not to die. - Carman Boyle, Olympic Luge Gold Medalist -- http://mail.python.org/mailman/listinfo/python-list
Re: Too many python installations. Should i remove them all and install the latest?
Τη Σάββατο, 1 Ιουνίου 2013 11:21:14 π.μ. UTC+3, ο χρήστης Cameron Simpson έγραψε: On 01Jun2013 00:51, =?utf-8?B?zp3Or866zr/PgiDOk866z4EzM866?= nikos.gr...@gmail.com wrote: | Τη Σάββατο, 1 Ιουνίου 2013 9:18:26 π.μ. UTC+3, ο χρήστης Chris Angelico έγραψε: | That would require that the repo have a 3.3.2 build in it. I don't | know the Red Hat / CentOS policies there, but I know Debian stable | wouldn't have anything so new - it takes time to test things. | | Is there a way to change to some repo that contain the latest python 3.3.2 to yo yum it? I asked Google: extra yum repositories for centos and it pointed me at: http://wiki.centos.org/AdditionalResources/Repositories Probably one of these has Python 3. Or build it from source; it's not hard. Should i chnage form CentoOS 6.4 to ubuntu by your opinion? -- http://mail.python.org/mailman/listinfo/python-list
Re: Apache and suexec issue that wont let me run my python script
I was searchign all night long yesterday an i didn manged to get this workign. Please if someoen is expreinces with linux just help me out here a but. -- http://mail.python.org/mailman/listinfo/python-list
Re: Apache and suexec issue that wont let me run my python script
Νικόλαος Κούρας nikos.gr...@gmail.com writes: [...] [Thu May 30 15:29:33 2013] [error] [client 46.12.46.11] suexec failure: could not open log file Here is a link to suexec documentation (at least some version of it, this is the second link provided by google): http://httpd.apache.org/docs/2.2/suexec.html Read this and check your setup to see if it matches. -- Alain. -- http://mail.python.org/mailman/listinfo/python-list
Re: Apache and suexec issue that wont let me run my python script
Τη Σάββατο, 1 Ιουνίου 2013 12:03:47 μ.μ. UTC+3, ο χρήστης Alain Ketterlin έγραψε: http://httpd.apache.org/docs/2.2/suexec.html Read this and check your setup to see if it matches. I have already seen this Alan thank you and tried the command i mentioned but with no successfull result whatsoever. -- http://mail.python.org/mailman/listinfo/python-list
Re: netcdF4 variables
Thank you very much it works for me. with best regards, Sudheer On Saturday, June 1, 2013 12:51:01 PM UTC+5:30, Andreas Perstinger wrote: On 01.06.2013 05:30, Sudheer Joseph wrote: some hing like a list xx=nc,variables[:] should get me all variable names with out other surrounding stuff?? In [4]: ncf.variables Out[4]: OrderedDict([(u'LON', netCDF4.Variable object at 0x254aad0), [SNIP] It looks like variables is an OrderedDict. Thus ncf.variables.keys() should return a view (or list, depending on your python version) of all keys, i.e. all variable names. Bye, Andreas -- http://mail.python.org/mailman/listinfo/python-list
Re: How to Begin Web Development with Python ?
Chitrank Dixit wrote: Hello Python developers I have learnt python and used it for various purposes for scietific computing using sage and GUI development using Tkinter and lots more. I want to start web development using python My goal is to learn the web development in python from the basic level and understand the big web development projects like Django , MoinMoin Wiki , Plone and network programming further with twisted. I have found Web2Py to be an easy library to quickly use and develop the web application. Is there any other library to start my development with. and does my plan of learning Web2Py is good for Web development and getting involved in the big projects like Django , MoinMoin Wiki , Plone. I am largely in the same situation as you, i.e. I used Python mostly for scientific applications, using scipy. I wanted to create a website to publish my research (see my signature for the result, but keep in mind it's still work in progress!). I chose CherryPy as my web framework, largely because it's simple and gets out of the way. I have found that the documentation can be somewhat lacking in certain respects but overall it's very easy to do what you want. CherryPy does not specify a template library so I chose mako which is fast and very simple to use. The only problem I had with it was getting meaningful tracebacks when an exception was raised by the in-template code, but I was able to rectify it once I read the relevant documentation section carefully. Modulok suggested using ORM software. ORM should not really be needed if you are aiming at scientific content for your application, you should be fine with straight SQL (many consider ORM a hindrance rather than help for any project [1], [2]). But if you do find the need for ORM then SQLAlchemy is very good and is considered pretty much a de facto standard in the Python world. Good luck, and I'm sure comp.lang.python posters will be happy to help you with any problems you come across! [1] https://en.wikipedia.org/wiki/Object-relational_mapping#Controversy [2] http://goo.gl/ECNSp -- www.statsfair.com : Real (statistical) tennis and snooker player rankings and ratings. -- http://mail.python.org/mailman/listinfo/python-list
Re: Python toplevel in a Web page
On 2013-05-30, Franck Ditter wrote: Hello, I wonder if I can find some source code example of a Python 3 toplevel box in a Web page. Something simple, no mySQL, no Django hammer, etc. Just the basics of the technology to get the content of a small text editor in which the user writes some Python script, to be analyzed (eval'ed) then whose result is to be written in another text box. Simple, pythonistic. Thanks for the pointer, franck Just set up a webpage with a text area that sends its content as a POST request to the server where a cgi script will invoke python to run the script and respond with the output. Do you trust all possible users of this application? If not, you should make sure that the python interpreter is running in a sandbox. -- Real (i.e. statistical) tennis and snooker player rankings and ratings: http://www.statsfair.com/ -- http://mail.python.org/mailman/listinfo/python-list
Re: Cutting a deck of cards
On 2013-05-26, RVic wrote: Suppose I have a deck of cards, and I shuffle them import random cards = [] decks = 6 cards = list(range(13 * 4 * decks)) random.shuffle(cards) So now I have an array of cards. I would like to cut these cards at some random point (between 1 and 13 * 4 * decks - 1, moving the lower half of that to the top half of the cards array. For some reason, I can't see how this can be done (I know that it must be a simple line or two in Python, but I am really stuck here). Anyone have any direction they can give me on this? Thanks, RVic, python newbie The slice notation should be your friend here: random.shuffle(cards) cut_point = random.choice(xrange(len(cards))) cards = cards[cut_point :] + cards[: cut_point] -- Real (i.e. statistical) tennis and snooker player rankings and ratings: http://www.statsfair.com/ -- http://mail.python.org/mailman/listinfo/python-list
Re: Python Magazine
Steven D'Aprano於 2013年5月26日星期日UTC+8上午11時50分31秒寫道： On Sat, 25 May 2013 21:54:43 -0400, Roy Smith wrote: Of course not every IPv6 endpoint will be able to talk to every other IPv6 endpoint, even if the both have globally unique addresses. But, the access controls will be implemented in firewalls with appropriately coded security policies. Or, more likely, *not* implemented in firewalls with *inappropriately* coded security policies. -- Steven Well, both the reliabl tcpip socket and the unstable udp socket are supported in Python. Aso the html and xml part is supported for the dirct web page content analysis through port 80. I am not sure whether Steven is interested in the web applictions. -- http://mail.python.org/mailman/listinfo/python-list
Changing filenames from Greeklish = Greek (subprocess complain)
/home/nikos/public_html/cgi-bin/metrites.py in ()
217 template = htmldata + counter
218 elif page.endswith('.py'):
= 219 htmldata = subprocess.check_output(
'/home/nikos/public_html/cgi-bin/' + page )
220 template = htmldata.decode('utf-8').replace(
'Content-type: text/html; charset=utf-8', '' ) + counter
221
htmldata undefined, subprocess = module 'subprocess' from
'/opt/python3/lib/python3.3/subprocess.py', subprocess.check_output =
function check_output, page = 'files.py'
/opt/python3/lib/python3.3/subprocess.py in check_output(timeout=None,
*popenargs=('/home/nikos/public_html/cgi-bin/files.py',), **kwargs={})
584 retcode = process.poll()
585 if retcode:
= 586 raise CalledProcessError(retcode, process.args,
output=output)
587 return output
588
global CalledProcessError = class 'subprocess.CalledProcessError', retcode =
1, process = subprocess.Popen object, process.args =
'/home/nikos/public_html/cgi-bin/files.py', output = b'Content-type: text/html;
charset=utf-8\n\nbod...n position 74: surrogates not allowed\n\n--\n\n'
CalledProcessError: Command '/home/nikos/public_html/cgi-bin/files.py' returned
non-zero exit status 1
args = (1, '/home/nikos/public_html/cgi-bin/files.py')
cmd = '/home/nikos/public_html/cgi-bin/files.py'
output = b'Content-type: text/html; charset=utf-8\n\nbod...n position
74: surrogates not allowed\n\n--\n\n'
returncode = 1
with_traceback = built-in method with_traceback of CalledProcessError
object
The above error message happened when i tried to reanme one of my filenames from
its greeklish name to greek charcters.
files.py is a script that allows users to downlaod fiels form my server.
But i wish to presnt filename sin Greek and not in Greeklish
http://superhost.gr/?page=files.py
as it is now.
What can i do to make pth script accept greek filenames too?
Why does subprocess is complaining?
--
http://mail.python.org/mailman/listinfo/python-list
problem loading Python PIL module
Hi, I have a Python program which worked successfully on several PCs using version 2.2 and showed videos using the PIL module version 1.1.5 . (All the rest works but the videos.) When I try to install the downloaded PIL module on my current laptop PC, I get the error message Could not create key. I now have an Acer, Windows 7, 64-bit with Norton security. I tried turning off the firewall, but this did not help. Can anyone help me out? Thanks! Elliot Perlman -- http://mail.python.org/mailman/listinfo/python-list
Re: Cutting a deck of cards
On 31 May 2013 12:56, Lee Crocker leedanielcroc...@gmail.com wrote: Why on Earth would you want to? Cutting a deck makes no sense in software. Randomize the deck properly (Google Fisher-Yates) and start dealing. Cutting the deck will not make it any more random, True and in fact will probably make it worse depending on how you choose the cutpoint. I'm pretty sure it won't. Otherwise you'd be lowering entropy by doing a random thing to a random thing. -- http://mail.python.org/mailman/listinfo/python-list
Re: Can anyone please help me in understanding the following python code
On May 30, 2:48 pm, bhk...@gmail.com wrote:
Code :
-
def mergeSort(alist):
print(Splitting ,alist)
if len(alist)1:
mid = len(alist)//2
lefthalf = alist[:mid]
righthalf = alist[mid:]
mergeSort(lefthalf)
mergeSort(righthalf)
i=0
j=0
k=0
while ilen(lefthalf) and jlen(righthalf):
if lefthalf[i]righthalf[j]:
alist[k]=lefthalf[i]
i=i+1
else:
alist[k]=righthalf[j]
j=j+1
k=k+1
while ilen(lefthalf):
alist[k]=lefthalf[i]
i=i+1
k=k+1
while jlen(righthalf):
alist[k]=righthalf[j]
j=j+1
k=k+1
print(Merging ,alist)
alist = [54,26,93,17,77,31,44,55,20]
mergeSort(alist)
print(alist)
Output:
---
('Splitting ', [54, 26, 93, 17, 77, 31, 44, 55, 20])
('Splitting ', [54, 26, 93, 17])
('Splitting ', [54, 26])
('Splitting ', [54])
('Merging ', [54])
('Splitting ', [26])
('Merging ', [26])
('Merging ', [26, 54])
('Splitting ', [93, 17])
('Splitting ', [93])
('Merging ', [93])
('Splitting ', [17])
('Merging ', [17])
('Merging ', [17, 93])
('Merging ', [17, 26, 54, 93])
('Splitting ', [77, 31, 44, 55, 20])
('Splitting ', [77, 31])
('Splitting ', [77])
('Merging ', [77])
('Splitting ', [31])
('Merging ', [31])
('Merging ', [31, 77])
('Splitting ', [44, 55, 20])
('Splitting ', [44])
('Merging ', [44])
('Splitting ', [55, 20])
('Splitting ', [55])
('Merging ', [55])
('Splitting ', [20])
('Merging ', [20])
('Merging ', [20, 55])
('Merging ', [20, 44, 55])
('Merging ', [20, 31, 44, 55, 77])
('Merging ', [17, 20, 26, 31, 44, 54, 55, 77, 93])
[17, 20, 26, 31, 44, 54, 55, 77, 93]
Question:
-
Function mergeSort is called only once, but it is getting recursively
executed after the printing the last statement print(Merging ,alist). But
don't recursion taking place except at these places mergeSort(lefthalf),
mergeSort(righthalf)
Sometimes the function execution directly starts from i=0,j=0,k=0 . Not sure
how.
Can anyone please help me out here?
Not in direct answer to your question... Still see if this helps you
to understand mergesorting better.
I generally find that mixing recursion along with imperative
programming makes recursion look difficult.
Imperative programming goes scot-free and recursion gets a bad name!!
So here is a pure recursive/functional solution. Tell me if you
understand it better (or worse!!)
Its written to demonstrate the IDEA of mergesort. Its actual
efficiency is sub-par for various reasons.
-
# merging two lists, both assumed sorted
def merge(a,b):
if a == []: return b
elif b== []: return a
elif a[0] b[0]:
return [a[0]] + merge(a[1:],b)
else:
return [b[0]] + merge(a,b[1:])
# The same as merge above written in pure functional style
def merge1(a,b):
return (b if a == [] else
a if b == [] else
[a[0]] + merge(a[1:],b) if a[0] b[0] else
[b[0]] + merge(a,b[1:])
)
def mergeSort(alist):
if len(alist)1:
mid = len(alist)//2
lefthalf = alist[:mid]
righthalf = alist[mid:]
return merge1(mergeSort(lefthalf),mergeSort(righthalf) )
else:
return alist
--
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Re: Future standard GUI library
A GUI that can not be used without taking the ten fingers off the keyboard is indeed entirely unusable for any half-proficient screenworker. And anyone doing actual productive screenwork every day for more than just a few months will inevitably (have to) get proficient (unless completely braindead). My ten fingers stay on my keyboard, which looks somewhat thus: http://www.xbitlabs.com/images/mobile/lenovo-thinkpad-t61/keyboard.jpg See the red dot in the middle? Mouse. I didn't mean trackpoints or similar devices, but full keyboard navigation of the entire GUI through shortcuts etc. A touch-type GUI is a must have for any application that's supposed to be used productively. The mouse is nice to explore a GUI or for occasional/leisurely use, but once you use an application daily to earn your living, it's a hopeless roadblock for productivity. As is the response time behaviour of web applications. Besides that pathological non-operating system MS (Not Responding), btw. No cursor animation ever is an absolute must have requirement for productivity applications. THIS is a professional programmer's workspace. :) And by screenworkers I didn't refer to programmers. Those people rarely have to use the stuff that they implement. Sincerely, Wolfgang -- http://mail.python.org/mailman/listinfo/python-list
Re: Future standard GUI library
On Sun, Jun 2, 2013 at 4:18 AM, Wolfgang Keller felip...@gmx.net wrote: A GUI that can not be used without taking the ten fingers off the keyboard is indeed entirely unusable for any half-proficient screenworker. And anyone doing actual productive screenwork every day for more than just a few months will inevitably (have to) get proficient (unless completely braindead). My ten fingers stay on my keyboard, which looks somewhat thus: http://www.xbitlabs.com/images/mobile/lenovo-thinkpad-t61/keyboard.jpg See the red dot in the middle? Mouse. I didn't mean trackpoints or similar devices, but full keyboard navigation of the entire GUI through shortcuts etc. A touch-type GUI is a must have for any application that's supposed to be used productively. The mouse is nice to explore a GUI or for occasional/leisurely use, but once you use an application daily to earn your living, it's a hopeless roadblock for productivity. You have seriously underestimated the power of the combined keyboard+mouse interface. I absolutely agree that keyboard-only will (almost) always beat mouse-only, but keyboard AND mouse together can beat either alone, if the UI is designed correctly. Case in point: Partial staging of a file in git. I can use 'git add -p' or 'git gui'. With the former, it's all keyboard; I can step through the hunks, choose what to stage, move on. With the latter, it's more visual; I right-click a hunk and choose Stage this hunk (or Stage this line, which is actually quite fiddly with 'git add -p'). I am a self-confessed keyboard junkie. I will use the keyboard for pretty much everything. Yet I use git gui and almost never git add -p, the one exception being when I can't use git gui (eg it's not installed on some remote headless system and installing it would require fetching gobs of GUI libraries). It uses the mouse to good result. As is the response time behaviour of web applications. On a LAN, with a proper back-end, I can get instant response from a web app. Obviously over the internet there's latency, but that's nothing to do with the use of a web browser as a UI; you'll see that with ssh just as much. No cursor animation ever is an absolute must have requirement for productivity applications. Not really. There are times when the human will be legitimately waiting for the computer. http://xkcd.com/303/ for one. But this still has little to do with the use of a web browser UI; I can achieve exactly that with the Yosemite Project, which can actually be a three-computer system: the content is stored on one, the HTTP server is on another, and the web browser is separate again. And this is only a 100Mbit LAN. If you need moar speeed, you can always demand gigabit or better. THIS is a professional programmer's workspace. :) And by screenworkers I didn't refer to programmers. Those people rarely have to use the stuff that they implement. Of course not, programmers never use software they've themselves written. Never. Not in a million... oh wait, what's this I have? Hmm, gcc used to compile gcc, RosMud being used by Rosuav, Neil Hodgson using SciTE... naw, they're all statistical anomalies, carry on! You really have a very low opinion of programmers for someone on a programming mailing list :) ChrisA -- http://mail.python.org/mailman/listinfo/python-list
Re: Create a file in /etc/ as a non-root user
On Fri, 31 May 2013 02:12:58 -0700, BIBHU DAS wrote: Any Idea how to create a file in /etc as non-root user?Can i use umask or chmod...confused If you don't have root access, you probably shouldn't be trying to write in /etc. If you need to write in /etc, explain to the sysadmin why you need root access. -- Denis McMahon, denismfmcma...@gmail.com -- http://mail.python.org/mailman/listinfo/python-list
Re: Future standard GUI library
On 6/1/2013 4:46 PM, Chris Angelico wrote: On Sun, Jun 2, 2013 at 4:18 AM, Wolfgang Keller felip...@gmx.net wrote: And by screenworkers I didn't refer to programmers. Those people rarely have to use the stuff that they implement. Of course not, programmers never use software they've themselves written. Never. Not in a million... oh wait, what's this I have? Hmm, gcc used to compile gcc, RosMud being used by Rosuav, Neil Hodgson using SciTE... naw, they're all statistical anomalies, carry on! And I use Idle to improve Idle. I use the HgWorkbench front-end to hg because point and click is often *faster* for me than remember (or look up command and arg) and type (without error, or correction after error). Now back to ignoring the troll. Terry -- http://mail.python.org/mailman/listinfo/python-list
Re: How to Begin Web Development with Python ?
I have learnt python and used it for various purposes for scietific computing using sage and GUI development using Tkinter and lots more. I want to start web development using python My goal is to learn the web development in python from the basic level and understand the big web development projects like Django , MoinMoin Wiki , Plone and network programming further with twisted. I have found Web2Py to be an easy library to quickly use and develop the web application. Is there any other library to start my development with. and does my plan of learning Web2Py is good for Web development and getting involved in the big projects like Django , MoinMoin Wiki , Plone. Modulok suggested using ORM software. ORM should not really be needed if you are aiming at scientific content for your application, you should be fine with straight SQL (many consider ORM a hindrance rather than help for any project [1], [2]). But if you do find the need for ORM then SQLAlchemy is very good and is considered pretty much a de facto standard in the Python world. Good luck, and I'm sure comp.lang.python posters will be happy to help you with any problems you come across! [1] https://en.wikipedia.org/wiki/Object-relational_mapping#Controversy [2] http://goo.gl/ECNSp In SQLalchemy you can use straight SQL, or a database abstraction, or a full ORM depending on your needs. The full ORM scared me at first. It was over-complicated nonsense, black magic and I already had a background in SQL on a console. I knew the exact queries I wanted. I didn't need this technical obfuscation wedged between me and greatness. However the more I used it the more I started to like it. (Slowly!) It's kind of an acquired taste. It's not perfect for everything, but it's usually quite useful once you become comfortable with it. Even so there are some valid points made against them. The nice part about SQLalchemy over most other orm packages is it doesn't really care how high or low level you interact with your data. It supports them all. You can do a raw SQL query on a cursor if you want. If you need more, you can use the database abstraction. Or more still is setting up a full ORM. You're never locked into anything. The down side to SQLalchemy however it is a very large library to learn. There are books about it alone. For leaner requirements I use psycopg2, simply because I use postgresql as my data store and it's pretty much the pythyon/postgresql de-facto standard. Internally this is what SQLalchemy uses to access a postgresql database. If you're on MySQL or Oracle or whatever your low level package will be different. What you use depends on your preferred learning style: top-down or bottom-up. If you already know SQL the bottom-up approach of learning the low level lib will serve you well and you'll feel more immediately productive. Good luck! -Modulok- -- http://mail.python.org/mailman/listinfo/python-list
Need to modify a Python Gui
Hi everybody,
I have a Python GUI that displays some data in labeled fields. As new data
comes in the fields clear and the old data is lost. I need to make a text box
in the GUI that will display the cleared data in a scrolling list. I also need
this scrolling list to be logged to a file in comma-seperated values for
analysis at a later time. The fields I need to scroll and log are labeled in
the “class TrafficPane(wx.Panel):” starting at line 64.
Thanks
#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# op25_traffic_panel.py
#
# Copyright 2013 Balint Seeber balint@crawfish
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
# MA 02110-1301, USA.
#
#
import wx
import cPickle as pickle
import gnuradio.gr.gr_threading as _threading
wxDATA_EVENT = wx.NewEventType()
def EVT_DATA_EVENT(win, func):
win.Connect(-1, -1, wxDATA_EVENT, func)
class DataEvent(wx.PyEvent):
def __init__(self, data):
wx.PyEvent.__init__(self)
self.SetEventType (wxDATA_EVENT)
self.data = data
def Clone (self):
self.__class__ (self.GetId())
class traffic_watcher_thread(_threading.Thread):
def __init__(self, rcvd_pktq, event_receiver):
_threading.Thread.__init__(self)
self.setDaemon(1)
self.rcvd_pktq = rcvd_pktq
self.event_receiver = event_receiver
self.keep_running = True
self.start()
def stop(self):
self.keep_running = False
def run(self):
while self.keep_running:
msg = self.rcvd_pktq.delete_head()
de = DataEvent (msg)
wx.PostEvent (self.event_receiver, de)
del de
# A snapshot of important fields in current traffic
#
class TrafficPane(wx.Panel):
# Initializer
#
def __init__(self, parent, msgq):
wx.Panel.__init__(self, parent)
self.msgq = msgq
sizer = wx.GridBagSizer(hgap=10, vgap=10)
self.fields = {}
label = wx.StaticText(self, -1, DUID:)
sizer.Add(label, pos=(1,1))
field = wx.TextCtrl(self, -1, , size=(144, -1), style=wx.TE_READONLY)
sizer.Add(field, pos=(1,2))
self.fields[duid] = field;
label = wx.StaticText(self, -1, NAC:)
sizer.Add(label, pos=(2,1))
field = wx.TextCtrl(self, -1, , size=(144, -1), style=wx.TE_READONLY)
sizer.Add(field, pos=(2,2))
self.fields[nac] = field;
label = wx.StaticText(self, -1, Source:)
sizer.Add(label, pos=(3,1))
field = wx.TextCtrl(self, -1, , size=(144, -1), style=wx.TE_READONLY)
sizer.Add(field, pos=(3,2))
self.fields[source] = field;
label = wx.StaticText(self, -1, Destination:)
sizer.Add(label, pos=(4,1))
field = wx.TextCtrl(self, -1, , size=(144, -1), style=wx.TE_READONLY)
sizer.Add(field, pos=(4,2))
self.fields[dest] = field;
label = wx.StaticText(self, -1, MFID:)
sizer.Add(label, pos=(1,4))
field = wx.TextCtrl(self, -1, , size=(144, -1), style=wx.TE_READONLY)
sizer.Add(field, pos=(1,5))
self.fields[mfid] = field;
label = wx.StaticText(self, -1, ALGID:)
sizer.Add(label, pos=(2,4))
field = wx.TextCtrl(self, -1, , size=(144, -1), style=wx.TE_READONLY)
sizer.Add(field, pos=(2,5))
self.fields[algid] = field;
label = wx.StaticText(self, -1, KID:)
sizer.Add(label, pos=(3,4))
field = wx.TextCtrl(self, -1, , size=(144, -1), style=wx.TE_READONLY)
sizer.Add(field, pos=(3,5))
self.fields[kid] = field;
label = wx.StaticText(self, -1, MI:)
sizer.Add(label, pos=(4,4))
field = wx.TextCtrl(self, -1, , size=(216, -1), style=wx.TE_READONLY)
sizer.Add(field, pos=(4,5))
self.fields[mi] = field;
label = wx.StaticText(self, -1, TGID:)
sizer.Add(label, pos=(5,4))
field = wx.TextCtrl(self, -1, , size=(144, -1), style=wx.TE_READONLY)
sizer.Add(field, pos=(5,5))
self.fields[tgid] = field;
self.SetSizer(sizer)
self.Fit()
EVT_DATA_EVENT(self, self.display_data)
Re: Create a file in /etc/ as a non-root user
On Jun 2, 2:19 am, Denis McMahon denismfmcma...@gmail.com wrote: On Fri, 31 May 2013 02:12:58 -0700, BIBHU DAS wrote: Any Idea how to create a file in /etc as non-root user?Can i use umask or chmod...confused If you don't have root access, you probably shouldn't be trying to write in /etc. If you need to write in /etc, explain to the sysadmin why you need root access. The OP is evidently working on a macbook pro. From which I infer its his own personal notebook. So 'explain to the sysadmin' amounts to explain to oneself!! 40 years ago, on the first Unices, with machines millions of times weaker and costlier than today, 'sysadmin' and 'normal user' were usually different. Today they are usually the same. So we old Unix-heads need to change our explanations from 'explain to the sysadmin' to 'change hat from normal-user to superuser'. And then why simplifying life by having only one hat -- $ sudo bash # and do everything there is not such a good idea! To the OP: One thing that has not changed in 40 (or rather 60) years is the concept of binding times. eg C programmers cannot get off the ground if they do not distinguish compile-time from run-time. In the current context, it is probably good to distinguish system- admining time from system-use time. So as sysadmin, you can pretty much do as you please (though remember my comments earlier on respecting your distro's space), make a directory under /etc, chmod, chown, chgrp it to your taste, so that the (group of) ordinary users can write to it. And then in normal user mode you should be able to write to it. However... as I said above it may be preferable to use /usr/local (for programs) or /var (for data) rather than mess in /etc. [Think of /etc as windows' registry] Study the FHS to make the right choice. And finally, if you are the only guy involved, why are you not doing everything under $HOME? -- http://mail.python.org/mailman/listinfo/python-list
xsd:anyType parameter in suds!
Hi people! I have a problem passing an xs:anyType Parameter in suds. The original sample is an application, where a PHP Array is being passed for the remoted method. What is the same type in python to accomplish the task?! doc with sample: http://kasapi.kasserver.com/dokumentation/?open=soap here the sample code with it's output: from suds.client import Client class KasAPI(object): def __init__(self): self.__WSDL = 'https://kasserver.com/schnittstelle/soap/wsdl/KasAuth.wsdl' self.client = Client(self.__WSDL) KasOBJ = KasAPI() print KasOBJ.client output: Suds ( https://fedorahosted.org/suds/ ) version: 0.4 GA build: R699-20100913 Service ( KasApiAuthenticationService ) tns=https://kasserver.com/; Prefixes (0) Ports (1): (KasApiAuthenticationPort) Methods (1): KasAuth(xs:anyType Params, ) Types (0): -- http://mail.python.org/mailman/listinfo/python-list
Re: Too many python installations. Should i remove them all and install the latest?
On 01Jun2013 01:30, =?utf-8?B?zp3Or866zr/PgiDOk866z4EzM866?= nikos.gr...@gmail.com wrote: | Τη Σάββατο, 1 Ιουνίου 2013 11:21:14 π.μ. UTC+3, ο χρήστης Cameron Simpson έγραψε: | On 01Jun2013 00:51, =?utf-8?B?zp3Or866zr/PgiDOk866z4EzM866?= nikos.gr...@gmail.com wrote: | | Τη Σάββατο, 1 Ιουνίου 2013 9:18:26 π.μ. UTC+3, ο χρήστης Chris Angelico έγραψε: | | That would require that the repo have a 3.3.2 build in it. I don't | | know the Red Hat / CentOS policies there, but I know Debian stable | | wouldn't have anything so new - it takes time to test things. | | | | Is there a way to change to some repo that contain the latest python 3.3.2 to yo yum it? | | I asked Google: |extra yum repositories for centos | and it pointed me at: |http://wiki.centos.org/AdditionalResources/Repositories | | Probably one of these has Python 3. Or build it from source; it's not hard. | | Should i chnage form CentoOS 6.4 to ubuntu by your opinion? No. Just sort it out on CentOS. Try the extra repos. Get Python 3 from one (I'm not sure why you think your current Python 3 install is a problem anyway, though). You're already slightly familiar with CentOS. Switching distros will just cause more pain. Fix your actual problems first. This is not a recommendation one way or another re CentOS versus Ubunutu; it is a recommendation not to change without a better reason. -- Cameron Simpson c...@zip.com.au It takes seven or eight people to send a FAX. - Anonymous IRS guy -- http://mail.python.org/mailman/listinfo/python-list
Re: Too many python installations. Should i remove them all and install the latest?
On Sun, Jun 2, 2013 at 2:36 PM, Cameron Simpson c...@zip.com.au wrote: This is not a recommendation one way or another re CentOS versus Ubunutu; it is a recommendation not to change without a better reason. Agreed. I happen to like Debian-family Linuxes, having spent most of my Linux time on either Ubuntu or Debian (and am now happy with Debian Wheezy on most of my computers), but there's really no point jumping ship randomly. I'm saying this for the archive only, though. Nikos just needs to learn the skill of figuring out where his problems really are. ChrisA -- http://mail.python.org/mailman/listinfo/python-list
[issue13123] bdist_wininst uninstaller does not remove pycache directories
Changes by Matt Wilkie map...@gmail.com: -- nosy: +Matt.Wilkie ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue13123 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue4636] bdist_wininst installer with install script raises exception
Matt Wilkie added the comment: I confirm this is happening with 3.2.4 from an installer generated in 2.7.4 (64bit Win7, 32bit python): https://pypi.python.org/pypi/leo/4.11.devel-build-5802 -- nosy: +Matt.Wilkie ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue4636 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17973] FAQ entry for: '+=' on a list inside tuple both succeeds and raises an exception
Andy Chugunov added the comment: Thank you guys for all the efforts you put in solving and answering this. Just so that we're clear. It is perfectly legitimate to extend lists withing tuples. It just doesn't seem possible to make augmented assignment and simple assignment handle this particular operation correctly without unduly sacrificing their general efficiency. Use append() on the lists instead. Is that correct? -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17973 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18109] os.uname() crashes if hostname contains non-ascii characters
Charles-François Natali added the comment: To reproduce the issue, try this: # echo hostname /proc/sys/kernel/hostname the locale encoding + surrogateescape error handler Sounds reasonable. -- nosy: +neologix ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18109 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18113] Memory leak in curses.panel
Changes by Serhiy Storchaka storch...@gmail.com: -- components: +Extension Modules keywords: +easy nosy: +serhiy.storchaka stage: - needs patch type: - behavior versions: +Python 3.4 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18113 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18109] os.uname() crashes if hostname contains non-ascii characters
Dominik Richter added the comment: @neologix: (with current hostname showing at the left of my prompt) none:~ # echo hât /proc/sys/kernel/hostname hât:~ # hostname hât -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18109 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18109] os.uname() crashes if hostname contains non-ascii characters
Dominik Richter added the comment: /off: nevermind, wasn't directed at me -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18109 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18110] Nested set comprehensions in class scope fail
Changes by Eric Wieser wieser.eric+py...@gmail.com: -- status: closed - open ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18110 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18110] Nested set comprehensions in class scope fail
Eric Wieser added the comment: This is not at first glance, a duplicate of 3692 - in that case, the list comprehension is referring to another class variable. Most notably, that describes a behavioural change introduced by python 3 - in this case, python 3 handles it correctly - there's a bug in the python 2 implementation. -- resolution: duplicate - ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18110 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue1772673] Replacing char* with const char*
Serhiy Storchaka added the comment: The patch is outdated. Some function prototypes were changed in issue9369, some were changed before. Here is a new patch. It adds const qualifier to following public functions: PyObject_DelAttrString, PyObject_HasAttrString, PyObject_GetAttrString, PyObject_SetAttrString, PyObject_DelItemString, PyMapping_DelItemString, PyMapping_HasKeyString, PyMapping_GetItemString, PyMapping_SetItemString, PyFile_FromFd, PyImport_ExecCodeModule, PyImport_ExecCodeModuleEx, PyImport_ExecCodeModuleWithPathnames, PyImport_ImportFrozenModule, PyLong_FromString, PyOS_strtoul, PyOS_strtol, PyOS_Readline, PyMarshal_ReadObjectFromString, PyParser_ParseFile, PyParser_ParseFileFlags, PyParser_ParseFileFlagsEx, PyTokenizer_FromFile. It also changes prototypes of some internal functions and structures and fixes documentation for PyDict_DelItemString. Some of functions already were documented with const qualifier. -- nosy: +brett.cannon, eric.snow, ncoghlan stage: needs patch - patch review Added file: http://bugs.python.org/file30440/const_char_2.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue1772673 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18020] html.escape 10x slower than cgi.escape
Changes by Ezio Melotti ezio.melo...@gmail.com: -- assignee: - ezio.melotti stage: - patch review ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18020 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17973] FAQ entry for: '+=' on a list inside tuple both succeeds and raises an exception
R. David Murray added the comment: I believe that summary is correct. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17973 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue16450] test_missing_localfile masks problems in urlopen
Roundup Robot added the comment: New changeset 60c195e89c88 by Senthil Kumaran in branch '2.7': Fix #16450 test_missing_localfile testcase fails on misconfigured hostname. http://hg.python.org/cpython/rev/60c195e89c88 -- nosy: +python-dev ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue16450 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue16450] test_missing_localfile masks problems in urlopen
Senthil Kumaran added the comment: I noticed this only after I had a misconfigured hostname on my mac. Fixing my hostname of course solved the problem, but in any case, changed the tests so that we wont be baffled by the unexpected (and misdirected error msg) from test for misconfigured hostname. Thanks for bug report, Hans Mulder and sorry for taking long time to get to this. -- resolution: - fixed stage: - committed/rejected status: open - closed type: - behavior ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue16450 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17967] urllib2.open failed to access a url when a perent directory of the url is permission denied
Roundup Robot added the comment: New changeset 0a544bb539e6 by Senthil Kumaran in branch '2.7': Fix #17967: For ftp urls CWD to target instead of hopping to each directory http://hg.python.org/cpython/rev/0a544bb539e6 New changeset dbfbdf2b5c19 by Senthil Kumaran in branch '3.3': Fix #17967: For ftp urls CWD to target instead of hopping to each directory http://hg.python.org/cpython/rev/dbfbdf2b5c19 New changeset c1101f0d6c29 by Senthil Kumaran in branch 'default': merge from 3.3 http://hg.python.org/cpython/rev/c1101f0d6c29 -- nosy: +python-dev ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17967 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17967] urllib2.open failed to access a url when a perent directory of the url is permission denied
Senthil Kumaran added the comment: Thanks Zhaoqifa for steps to configure the ftp with acl. I could reproduce it manually and fix it by changes to the urllib.request code. Unfortunately, we dont have rigorous tests for ftp handling in urllib module. That's noted in test_urllib2net module too. This bug is fixed in all branches. -- resolution: - fixed stage: test needed - committed/rejected status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17967 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17967] urllib2.open failed to access a url when a perent directory of the url is permission denied
Senthil Kumaran added the comment: Reopening: This change is seeing problems with Windows Buildbot http://buildbot.python.org/all/builders/x86%20XP-4%203.x/builds/8643/steps/test/logs/stdio -- status: closed - open ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17967 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17683] socket.getsockname() inconsistent return type with AF_UNIX
Changes by Charles-François Natali cf.nat...@gmail.com: -- nosy: +haypo ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17683 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18066] Remove SGI-specific code from pty.py
Changes by A.M. Kuchling li...@amk.ca: -- resolution: - fixed stage: patch review - committed/rejected status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18066 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18066] Remove SGI-specific code from pty.py
Roundup Robot added the comment: New changeset a678f139510b by Andrew Kuchling in branch 'default': #18066: remove vestigial code depending on the sgi module http://hg.python.org/cpython/rev/a678f139510b -- nosy: +python-dev ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18066 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18106] There are unused variables in Lib/test/test_collections.py
Terry J. Reedy added the comment: To me, there are two independent improvements: using i and hence msg to identify the erroneous dup, and using .subTest to test all dups. I would combine ideas from both the first two patches to do both. 1. a fancy formatted message would be more useful with less fluff and the two displays each on their own line. msg = iteration %s\ncopy: %s\norig: %s % (i, dup, words) # or od for OrderedDict test 2. within both loops, add msg to all asserts as in the first patch. If there is a failure, one would want to know both the source of the dup (indicated by i) and the content, and how it differed from the model. 3. wrap the bodies of both loops with 'with self.subTest():' to always test all dups. Unrolling the loops prevents doing this. Test the revised tests by temporarily adding both the original (failing the 'is' test) and a partial and therefore faulty copy of the original to both list of dups. Verify that both errors are reported for each and that the message formatting looks ok. -- nosy: +terry.reedy ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18106 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18106] There are unused variables in Lib/test/test_collections.py
Serhiy Storchaka added the comment: subTest() serves two purposes: identify the test case and continue testing oother test cases after a fail. For first purpose subTest() is not well suitable in these tests, becouse we have no a string which determine a test. Second purpose is not relevant to original issue. 1. a fancy formatted message would be more useful with less fluff and the two displays each on their own line. msg = iteration %s\ncopy: %s\norig: %s % (i, dup, words) # or od for OrderedDict test When the test fails, dup is not expected value and printing it can raise an exception and prevent formatting useful error message. Failure report should be succesful in any case. 3. wrap the bodies of both loops with 'with self.subTest():' to always test all dups. Unrolling the loops prevents doing this. Of course you can wrap a body of the check() function. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18106 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18106] There are unused variables in Lib/test/test_collections.py
Terry J. Reedy added the comment:
becouse we have no a string which determine a test.
The original loop could be have been written as (or be changed to)
for label, dup in [
('odcopy', od.copy()),
('copycopy', copy.copy(words)),
and so on
]
and the label used to identify the test, whether passed to assertX or subTest.
The test author (Raymond H.) thought the sequence number enough in the off
chance there ever were a failure.
When the test fails, dup is not expected value and printing it can raise an
exception and prevent formatting useful error message.
I do not understand this, unittest assumes that tested objects are printable.
Indeed, assertEqual(dup, words/od) will do that (making the message redundant
for this particular test.
So I think the best fix would be to redo the loop header as above, pass label
to subTest so it appears for any failure (which intertwines subTest with this
issue), and only pass a message to assert where actually needed (like the len
test).
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[issue14621] Hash function is not randomized properly
Changes by Donald Stufft donald.stu...@gmail.com: -- nosy: +dstufft ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue14621 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue11959] smtpd cannot be used without affecting global state
Changes by Vinay Sajip vinay_sa...@yahoo.co.uk: Added file: http://bugs.python.org/file30441/d7c50c15468d.diff ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue11959 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18050] embedded interpreter or virtualenv fails with ImportError: cannot import name MAXREPEAT
Changes by H Xu h...@topbug.net: -- nosy: +xuhdev ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18050 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue11959] smtpd cannot be used without affecting global state
Vinay Sajip added the comment: Patch now updated to revert asyncore changes. The changes are now: smtpd.py - changed SMTPChannel and SMTPServer to accept map argument test_logging.py - removed subclassed SMTPChannel, not needed since the base SMTPChannel class now accepts a map, and simplified TestSMTPServer, since the base SMTPServer class now accepts a map. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue11959 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue15903] Make rawiobase_read() read directly to bytes object
Dwight Guth added the comment: I was programming something today and thought I should let you know I came across a situation where the current behavior of this function is able to expose what seems to be raw memory to the user. import io class A(io.RawIOBase): def readinto(self, b): return len(b) A().read(100) -- nosy: +dwight.guth ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue15903 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18116] getpass.getpass() triggers ResourceWarning
New submission from Nikolaus Rath:
[0] nikratio@vostro:~/tmp$ cat bugme.py
#!python
import getpass
import warnings
warnings.simplefilter('default')
getpass.getpass(What's up?)
[0] nikratio@vostro:~/tmp$ python3 --version
Python 3.3.2
[0] nikratio@vostro:~/tmp$ python3 bugme.py
/usr/lib/python3.3/os.py:1043: ResourceWarning: unclosed file _io.FileIO
name=3 mode='rb+'
return io.open(fd, *args, **kwargs)
What's up?
--
components: Library (Lib)
messages: 190458
nosy: Nikratio
priority: normal
severity: normal
status: open
title: getpass.getpass() triggers ResourceWarning
type: resource usage
versions: Python 3.3
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[issue18116] getpass.getpass() triggers ResourceWarning
Alex Gaynor added the comment: Attached patch should fix this issue. -- keywords: +patch nosy: +alex Added file: http://bugs.python.org/file30442/issue18116.diff ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18116 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18116] getpass.getpass() triggers ResourceWarning
Nikolaus Rath added the comment: No, it doesn't. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18116 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18116] getpass.getpass() triggers ResourceWarning
Alex Gaynor added the comment: Are you sure you applied it correctly? With and without: Alexanders-MacBook-Pro:cpython alex_gaynor$ ./python.exe x.py What's up? Alexanders-MacBook-Pro:cpython alex_gaynor$ hg revert --all --no-backup reverting Lib/getpass.py Alexanders-MacBook-Pro:cpython alex_gaynor$ ./python.exe x.py What's up? x.py:6: ResourceWarning: unclosed file _io.TextIOWrapper name=3 mode='w+' encoding='UTF-8' getpass.getpass(What's up?) -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18116 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18116] getpass.getpass() triggers ResourceWarning
Nikolaus Rath added the comment: Yes, I'm pretty sure: [0] nikratio@vostro:~/tmp$ cp /usr/lib/python3.3/getpass.py . [0] nikratio@vostro:~/tmp$ patch -p2 issue18116.diff patching file getpass.py Hunk #1 succeeded at 57 (offset -1 lines). [0] nikratio@vostro:~/tmp$ python3 bugme.py /usr/lib/python3.3/os.py:1043: ResourceWarning: unclosed file _io.FileIO name=3 mode='rb+' return io.open(fd, *args, **kwargs) What's up? # Test if we're using the patched getpass.py... [0] nikratio@vostro:~/tmp$ vim getpass.py [0] nikratio@vostro:~/tmp$ python3 bugme.py Hello /usr/lib/python3.3/os.py:1043: ResourceWarning: unclosed file _io.FileIO name=3 mode='rb+' return io.open(fd, *args, **kwargs) What's up? -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18116 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue17855] Implement introspection of logger hierarchy
Brandon Craig Rhodes added the comment: Adding an entirely separate API for introspection strikes me as counter-productive — instead of merely having to maintain the logging API that you already maintain, you will additionally now have an entirely separate and second API that also has to be maintained forever. Reading back over the current logging documentation, it looks like the problem is that the documentation only includes verbs — the methods that can be invoked — but not adjectives: the attributes that are attached to each logger, handler, and filter. This is contrary to modern Python APIs, which typically document their attributes and offer direct access to them; within the Standard Library, cf the threading.Thread object for one that has done a good job of moving into the modern world with directly-accessible attributes. So my guess would be that you should discard the idea of a separate introspection API, and simply document that attributes of each logger, handler, and filter that today are already perfectly introspectable. Check out the logging_tree code if you want to make sure that you are “promoting” into document-hood all of the attributes that I needed in order to do my introspecting there. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue17855 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18111] Add a default argument to min max
Julian Berman added the comment: Thanks for finding that, I thought there was an issue that came out of that p-i thread but couldn't find it. I'd like to be more concrete, but calling max on an iterable seems concrete enough to me. If you'd like to know more though, personally I've wanted this at least twice in the past 4 or 5 months. Currently, I have code that looks like: def best_match(stuff): first = next(stuff, None) if first is None: return return max(itertools.chain([first], stuff)) which finds the best matching (error it happens to be) in the given stuff. A few months ago I had a similar need in a different application. The issues in that thread from 2009 revolved around a bunch of confusing and not so related things. And I definitely agree that `start` is a really bad name for this. But I don't find `default` to be at all confusing, and in fact this has come up in #python a few times and each time there hasn't really been a problem explaining to someone what `default` would do (or how it would interact with `key` for that matter, although if a precedent is desired, the default in `argparse` just returns the default, it doesn't call `type` or anything on it). -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18111 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18111] Add a default argument to min max
R. David Murray added the comment: So you aren't really asking for a default, you are asking for a version of max/min that returns a sentinel instead of raising an error on an empty list. You could just write utility function that has a try/except in it. I'm not sure it is worth complicating min and max for this use case. (I'm not sure it isn't, either.) I wonder if we have any other functions in python that have an argument that turns a ValueError into a sentinel-return instead? -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18111 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18111] Add a default argument to min max
Julian Berman added the comment: Yes that's a good description. I'm not sure the type of exception is the thing to look at as much as the behavior, I.e. I think next() is a good precedent. And it's not really pleasant to do this with a try/except. Of course everything's possible, but to catch the ValueError sanely requires checking the text of the exception so that the except isn't too broad. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18111 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18106] There are unused variables in Lib/test/test_collections.py
Vajrasky Kok added the comment:
I redo the test as Terry J. Reedy suggested. I use label in loop, utilize
subTest receiving label parameter, and pass messages to only necessary asserts.
So roughly if the test fails, we would get something like this:
==
FAIL: test_copying (__main__.TestOrderedDict) (label='OrderedDict(od)')
--
Traceback (most recent call last):
File Lib/test/test_collections.py, line 1237, in test_copying
self.assertTrue(dup is not dup, msg)
AssertionError: False is not true :
copy: OrderedDict([('c', 1), ('b', 2), ('a', 3), ('d', 4), ('e', 5), ('f', 6)])
od: OrderedDict([('c', 1), ('b', 2), ('a', 3), ('d', 4), ('e', 5), ('f', 6)])
==
FAIL: test_copying (__main__.TestCounter) (label='Counter(words)')
--
Traceback (most recent call last):
File Lib/test/test_collections.py, line 942, in test_copying
self.assertEqual(type(dup), type(''), msg)
AssertionError: class 'collections.Counter' != class 'str' :
copy: Counter({'which': 2, 'witches': 1, 'witch': 1, 'watch': 1, 'wrist': 1,
'had': 1})
words: Counter({'which': 2, 'witches': 1, 'had': 1, 'watch': 1, 'witch': 1,
'wrist': 1})
--
Added file: http://bugs.python.org/file30443/test_with_label_and_subTest.patch
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[issue18116] getpass.getpass() triggers ResourceWarning
Vajrasky Kok added the comment: This bug happens in Python 3.4 as well. [sky@localhost cpython]$ ./python --version Python 3.4.0a0 [sky@localhost cpython]$ ./python /tmp/bugme.py /home/sky/Code/python/programming_language/cpython/Lib/os.py:1025: ResourceWarning: unclosed file _io.FileIO name=3 mode='rb+' return io.open(fd, *args, **kwargs) What's up? I tried to apply the patch manually (by copying, cutting and pasting) from Alex but Nikolaus is right. The patch does not work. The bug still happens -- nosy: +vajrasky ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18116 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18111] Add a default argument to min max
R. David Murray added the comment: I don't think there's any other way to get a ValueError out of min/max, but I haven't actually looked at the code to check. Of course, if we want people to rely on that, we'd need to document it. 'next's default is used to return a sentinel when the list is exhausted, not when it would otherwise raise a ValueError. It is a somewhat related case, but is not exactly parallel. The sentinel for next indicates the end of an ongoing process. The proposed argument to min/max would *replace* an error with a sentinel value. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18111 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue18111] Add a default argument to min max
Julian Berman added the comment: It's not exactly the same of course, but calling next on a thing that might be empty would be somewhat close, and also is replacing an exception with a sentinel (an exception that is much easier to differentiate). You can always get a ValueError out of min/max, they're going to be ultimately calling __lt__ on stuff which can do what it wants, but that's admittedly quite unlikely. It's not really that readable though on the other hand. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue18111 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
