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• Open source equivelants to VS / web reference proxy class autogen?

  - by seraphym

  As an ASP.NET developer, I'm used to working with how VS/C# transparently autogens proxy classes for web references (yes, I know, we're spoiled), but now that I'm creating documentation for more than one coding platform I'm trying to discover what the equivelant to that is in any other framework. So is there a similar way to work transparently with web reference proxy classes for say, RoR, PHP, and Python? And if there's nothing integrated, are there tools you recommend to autogen the proxy classes, or do you recommend to roll custom classes?

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• how to use ffmpeg

  - by Moayyad Yaghi

  hello .. im trying to extract frames from a video .. and i picked ffmpeg ( tell me if you know something better ) for this task i downloaded it's source .. and i don't know how to use it ?? how do i compile it ?? what is the recommended language for it ?? i know python and C++ please note that i use windows vista 64x .

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• How to iterate over the first n elements of a list?

  - by Bialecki

  Say I want I've got a list and I want to iterate over the first n of them. What's the most concise way to write this in Python?

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• how to install numpy and scipy on OS X?

  - by amateur

  Hey guys I'm new to Mac so please bear with me. I'm using snow leopard 10.6.4 at the moment. I want to install numpy and scipy, so I downloaded the python2.6,numpy and scipy dmg files from their official site. However, I'm having problem import numpy: Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/numpy/core/multiarray.so: no matching architecture in universal wrapper Can anyone shed some light to this problem?

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• Is there an alternative to Pidgin, but with less restrictive licensing?

  - by morpheous

  Recently came across pidgin. Its great, and does what I want, but I am not too keen on the GPL license. Other any alternatives, with less restrictive licenses? I would prefer the library to be C or C++, as I am most familiar with those languages, but a an IM library implemented in python would be interesting too.

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• datetime.datetime.strptime problem

  - by Rahul99

  My input string is '16-MAR-2010 03:37:04' and i want to store it as datetime. I am trying to use: db_inst.HB_Create_Ship_Date = datetime.strptime(fields[7]," %d-%b-%Y %H:%M:%S ") fields[7] = '16-MAR-2010 03:37:04' I am getting an error: ::ValueError: time data '16-MAR-2010 03:37:04' does not match format ' %d-%b-%Y %H:%M:%S ' I am running Python version --EDIT-ME-- on the --EDIT-ME-- operating system. My locale is --EDIT-ME--. Which format do I have to use?

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• Why can't Django find my admin media files once I leave the built-in runserver?

  - by Satoru.Logic

  When I was using the built-in simple server, everything is OK, the admin interface is beautiful: python manage.py runserver However, when I try to serve my application using a wsgi server with django.core.handlers.wsgi.WSGIHandler, Django seems to forget where the admin media files is, and the admin page is not styled at all: gunicorn_django How did this happen?

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• How do I determine all of my IP addresses when I have multiple NICs?

  - by Wilson Fowlie

  I have multiple Network Interface Cards on my computer, each with its own IP address. When I use gethostbyname(gethostname()) from Python's (built-in) socket module, it will only return one of them. How do I get the others?

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• Why can't my function access a variable in an enclosing function?

  - by nailer

  I know about the LEGB rule. But a simple test of whether a function has read access to variables defined in an enclosing function doesn't seem to actually work. Ie: #!/usr/bin/env python2.4 '''Simple test of Python scoping rules''' def myfunction(): print 'Hope this works: '+myvariable def enclosing(): myvariable = 'ooh this worked' myfunction() if __name__ == '__main__': enclosing() Returns: NameError: global name 'myvariable' is not defined Am I doing something wrong? Is there more to it than the LEGB resolution order?

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• non-uniform distributed random array

  - by Javier

  Dear all, I need to generate a vector of random float numbers between [0,1] such that their sum equals 1 and that are distributed non-uniformly. Is there any python function that generates such a vector? Best wishes

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• Letter Count on a string

  - by user74283

  Python newb here. I m trying to count the number of letter "a"s in a given string. Code is below. It keeps returning 1 instead 3 in string "banana". Any input appreciated. def count_letters(word, char): count = 0 while count <= len(word): for char in word: if char == word[count]: count += 1 return count print count_letters('banana','a')

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• How can I use foreach and fork together to do something in parallel?

  - by kaushalmodi

  This question is not UVM specific but the example that I am working on is UVM related. I have an array of agents in my UVM environment and I would like to launch a sequence on all of them in parallel. If I do the below: foreach (env.agt[i]) begin seq.start(env.agt[i].sqr); end , the sequence seq first executes on env.agt[0].sqr. Once that gets over, it then executes on env.agt[1].sqr and so on. I want to implement a foreach-fork statement so that seq is executed in parallel on all agt[i] sequencers. No matter how I order the fork-join and foreach, I am not able to achieve that. Can you please help me get that parallel sequence launching behavior? Thanks.

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• when a data is put in a empty queue i want my thread to starts its activity

  - by sia

  i want my thread to sleep when a queue is empty and just wake up when a data is put in it, should i use condition object? i have never used this object before! and i can,t find a simple example in python

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• How can I make list or set translatable using gettext?

  - by Thomas

  I have some structure in Python: gender=( ('0','woman'), ('1','man') ) I want translate it before I will display it in Django template. Unfortunatelly below sollution don't work: from django.utils.translation import ugettext_lazy as _ gender=( ('0',('woman')), ('1',('man')) ) What I must do to translate this. I readed something in: link text but I can't understand what I should do.

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• Open source equivelants to VS / web reference proxy classes?

  - by seraphym

  As an ASP.NET developer, I'm used to working with how VS/C# transparently autogens proxy classes for web references (yes, I know, we're spoiled), but now that I'm creating documentation for more than one coding platform I'm trying to discover what the equivelant to that is in any other framework. So is there a similar way to work transparently with web reference proxy classes for say, RoR, PHP, and Python? And if there's nothing integrated, are there tools you recommend to autogen the proxy classes, or do you recommend to roll custom classes?

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• Is closing file descriptor and removing inotify watch really necessary?

  - by hell.orts.ru

  With python inotifyx, do I have to remove watch and close opened system file descriptor if I need them until program exit? E.g. is there some possible problems if I create one (file descriptor + watch) with each run and don't close it?

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• efficiently list items in tuples starting at end

  - by Donnied

  I'd like to list the items in a tuple in Python starting with the back and go to front. Similar to: foo_t = tuple(int(f) for f in foo) print foo, foo_t[len(foo_t)-1] ... I believe this should be possible without Try ...-4, except ...-3. Thoughts? suggestions?

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• have to invoke (Thread.__init__) in my overridden constructor, but why?

  - by sia

  i saw this phrase in python 2.6 man: class threading.Thread(group=None, target=None, name=None, args=(), kwargs={}) . . . If the subclass overrides the constructor, it must make sure to invoke the base class constructor (Thread.__init__()) before doing anything else to the thread. i just wanna know why?

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• How to turn on and minimize Microsoft Speech Recognition?

  - by aF

  I'm using Windows 7 Pro and I made a C# program that makes Speech Recognition. When I run the program, the Speech Recognition App initializes. Now, how can I turn it on ("Listen to everything I say") and minimize it (so it goes to systems tray and isn't visible), using C# or Python?

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• How to zip multiple lists in Haskell?

  - by TheMachineCharmer

  In python zip function accepts arbitrary number of lists and zips them together. >>> l1 = [1,2,3] >>> l2 = [5,6,7] >>> l3 = [7,4,8] >>> zip(l1,l2,l3) [(1, 5, 7), (2, 6, 4), (3, 7, 8)] >>> How can I zip together multiple lists in haskell?

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• How do I name a variable with acronym?

  - by Vishal

  For example in Java for Data Transfer Object I use as: ExampleDTO exampleDTO = new ExampleDTO(); What naming convention should I follow for similar in Python?

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• Which parallel sorting algorithm has the best average case performance?

  - by Craig P. Motlin

  Sorting takes O(n log n) in the serial case. If we have O(n) processors we would hope for a linear speedup. O(log n) parallel algorithms exist but they have a very high constant. They also aren't applicable on commodity hardware which doesn't have anywhere near O(n) processors. With p processors, reasonable algorithms should take O(n/p log n/p) time. In the serial case, quick sort has the best runtime complexity on average. A parallel quick sort algorithm is easy to implement (see here and here). However it doesn't perform well since the very first step is to partition the whole collection on a single core. I have found information on many parallel sort algorithms but so far I have not seen anything pointing to a clear winner. I'm looking to sort lists of 1 million to 100 million elements in a JVM language running on 8 to 32 cores.

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• Is cropping of jpeg images using the PIL lossless?

  - by Acorn

  A simple questions really. If you crop a jpeg image using the Python Imaging Library, is the resulting image recompressed, or is it lossless?

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• What speech libraries are available in Linux?

  - by George Edison

  When it comes to TTS (text-to-speech) libraries in Linux, what choices do developers have? What libraries ship with the majority of distros? Are there minimal libraries? What functionality does each library offer? I'm approaching this primarily from a C++ point of view, although Python would suit me too.

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• How to print all possibilities of a number that occur interchanging the digits in a number?

  - by RADHA KRISHNA LOLLA

  I want to print that the all possibilities of a number that occurs interchanging the digits in a number? I want to print that the all possibilities of a number that occurs interchanging the digits in a number? Suppose a number 1234 it have 24 possibilities 4!=24 123 have 6 possibilities 3!=6 123 132 213 231 312 321 i want these numbers as output please tell me the structure of this program in the python

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