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  • Integrating Jython Cpython

    - by eric.frederich
    I am about to begin a project where I will likely use PyQt or Pyside. I will need to interface with a buggy 3rd party piece of server software that provides C++ and Java APIs. The Java APIs are a lot easier to use because you get Exceptions where with the C++ libraries you get segfaults. Also, the Python bindings to the Java APIs are automatic with Jython whereas the Python bindings for the C++ APIs don't exist. So, how would a CPython PyQt client application be able to communicate with these Java APIs? How would you go about it? Would you have another separate Java process on the client that serializes / pickles objects and communicates with the PyQt process over a socket? I don't want to re-invent the wheel... is there some sort of standard interface for these types of things? Some technology I should look into? RPC, Corba, etc? Thanks, ~Eric

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  • why is my 3n+1 problem solution wrong?

    - by nunos
    I have recently started reading "Programming Challenges" book by S. Skiena and believe or not I am kind of stuck in the very first problem. Here's a link to the problem: 3n+1 problem Here's my code: #include <iostream> #include <vector> #include <algorithm> using namespace std; unsigned long calc(unsigned long n); int main() { int i, j, a, b, m; vector<int> temp; while (true) { cin >> i >> j; if (cin.fail()) break; if (i < j) { a = i; b = j; } else { a = j; b = i; } temp.clear(); for (unsigned int k = a; k != b; k++) { temp.push_back(calc(k)); } m = *max_element(temp.begin(), temp.end()); cout << i << ' ' << j << ' ' << m << endl; } } unsigned long calc(unsigned long n) { unsigned long ret = 1; while (n != 1) { if (n % 2 == 0) n = n/2; else n = 3*n + 1; ret++; } return ret; } I know the code is inefficient and I should not be using vectors to store the data. Anyway, I still would like to know what it's wrong with this, since, for me, it makes perfect sense, even though I am getting WA (wrong answer at programming challenges judge and RE (Runtime Error) at UVa judge). Thanks.

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  • Why is this the output of this python program?

    - by Andrew Moffat
    Someone from #python suggested that it's searching for module "herpaderp" and finding all the ones listed as its searching. If this is the case, why doesn't it list every module on my system before raising ImportError? Can someone shed some light on what's happening here? import sys class TempLoader(object): def __init__(self, path_entry): if path_entry == 'test': return raise ImportError def find_module(self, fullname, path=None): print fullname, path return None sys.path.insert(0, 'test') sys.path_hooks.append(TempLoader) import herpaderp output: 16:00:55 $> python wtf.py herpaderp None apport None subprocess None traceback None pickle None struct None re None sre_compile None sre_parse None sre_constants None org None tempfile None random None __future__ None urllib None string None socket None _ssl None urlparse None collections None keyword None ssl None textwrap None base64 None fnmatch None glob None atexit None xml None _xmlplus None copy None org None pyexpat None problem_report None gzip None email None quopri None uu None unittest None ConfigParser None shutil None apt None apt_pkg None gettext None locale None functools None httplib None mimetools None rfc822 None urllib2 None hashlib None _hashlib None bisect None Traceback (most recent call last): File "wtf.py", line 14, in <module> import herpaderp ImportError: No module named herpaderp

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  • ReSharper/StyleCop-like Visual Studio addon for C/C++

    - by kriau
    Is there any ReSharper/StyleCop-like Visual Studio addon for C/C++? I'm using ReSharper and StyleCop addons every day. Just recently started a new project which involves C/C++ programming. I miss some features from these addons like code formatting, hints/tips to use cleaner and better code, documentation/uniform code requirements, optimizing includes and so on....

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  • Clojure Box: Problem with classpath (noob question)

    - by Rainer
    Hello, I'm stuck with "Programming Clojure" on page 37 on a Windows 7 machine. After downloading the "examples" dir into "C:/clojure", I typed: user (require 'examples.introduction) and I got ; Evaluation aborted. java.io.FileNotFoundException: Could not locate examples/ introduction__init.class or examples/introduction.clj on classpath: (NO_SOURCE_FILE:0) My .emacs file looks like this: (setq swank-clojure-extra-classpaths (list "C:/Clojure")) The files in C:/Clojure are there (I triplechecked) Any help will be appreciated.

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  • Installing PostGIS on Windows

    - by Cornflake
    I've installed PostgreSQL and PostGIS, and now I'm trying to follow these instructions: http://docs.djangoproject.com/en/dev/ref/contrib/gis/install/#spatialdb-template But I keep getting the following error, both in the command prompt and in Cygwin: C:\Users\Home>createdb -E UTF8 template_postgis createdb: could not connect to database postgres: could not connect to server: No such file or directory Is the server running locally and accepting connections on Unix domain socket "/tmp/.s.PGSQL.5432"? And I know PostgreSQL is running, because I'm using it right now! Installing open source applications can sometimes be so frustrating... I'll be very grateful for your help!

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  • developer tools for os' other than windows

    - by user225269
    I currently use visual studio 2008 for creating projects that can run on windows. Can you recommend me of other tools that can be used to develop applications for other operating systems?(Linux, Mac, Solaris) The most prominent programming languages will do(C++, C#, F#) And scripting languages(PHP, Perl, etc)

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  • Multi-Threading - Cleanup strategy at program end

    - by weismat
    What is the best way to finish a multi-threaded application in a clean way? I am starting several socket connections from the main thread in seperate sockets and wait until the end of my business day in the main thread and use currently System.Environment.Exit(0) to terminate it. This leads to an unhandled execption in one of the childs. Should I stop the threads from the list? I have been reluctant to implement any real stopping in the childs yet, thus I am wondering about the best practice. The sockets are all wrapped nicely with proper destructors for logging out and closing, but it still leads to errors.

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  • learn ubuntu book

    - by dole doug
    Hi there I'm cs student and we did some unix programming at school, but most of use are using windows os. I have decided to go on ubuntu. Besides installing ubuntu and using it, what book will teach me the "must" things to know about *nix OS?

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  • Have minimized windows with a unique icon/color?

    - by JB
    Are there any programs or way to get a specific icon or any icon for that matter into a minimized window? The reason why I ask is that I hate having 3 or more windows of the same program minimized on my taskbar using the same icon. When I want to open up the program i'm not sure which window to activate. -edit I'm asking for a program to do this for me, not a programming technique

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  • unit, integration and system tests for PHP applications

    - by Sara
    Hi, We were given an assignment to develop a prototype for a customer community. It was suggested PHP as the programming language. (but we're not supposed to actually code it, just a prototype with documentation is required) I'm wondering what are the best practices/ tools used in Unit testing, Integration Testing and System testing for such a php app Thanks

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  • Java MouseListener

    - by ikurtz
    I have a bunch of JLabels and i would like to trap mouse click events. at the moment i am having to use: public void mouseClicked(MouseEvent arg0) { } public void mouseExited(MouseEvent arg0) { } public void mouseEntered(MouseEvent arg0) { } public void mousePressed(MouseEvent arg0) { } public void mouseReleased(MouseEvent arg0) { System.out.println("Welcome to Java Programming!"); } I was wondering if there is a tidier way of doing this instead of having a bunch of events I do not wish trap?

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  • Programmers joy: the proccess or the result?

    - by faya
    Hello, Recently I stumbled upon this curious question: What is importing for yourself when programming: process or result? I found myself that I love outcome, when everything is done! So I tried to ask some colleagues at work, but all of them responded that they like the development process the most. Myself I like process too, but not as much as outcome. So to which people category you belong too? And if there is a reason, could you express why?

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  • Difference Between Property And Function.

    - by Asim Sajjad
    Which one is better to use when it come to return value for example public int EmployeeAge { get{return intEmployeeAge}; } And public int EmployeeAge() { return intEmployeeAge; } Which one is better and why? And what is best programming practice to use when we have secnario like above ?

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  • How to extend the Eclipse Java Editor to add coloured overlays

    - by Gavin Clarke
    I have an idea for an Eclipse plugin which I've been toying with. I need to be able to extend the Eclipse Java Editor component and add coloured overlays to the code based on pluggable external metrics. Unfortunately there doesn't appear to be any kind of syntax highlighting extension point. Does anyone know how I might be able to extend the exisitng eclipse Java Editor to add custom highlighting rules? Bear in mind I'm new to Eclipse plugin programming so please give as much detail as possible.

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  • PHPMailer, fsockopen(), possible Apache issue?

    - by danp
    I'm using PHPMailer to send out site contacts. In development, the script works perfectly with the GMail service over smtp. However, in production, inside the client's DMZ, it appears unable to connect to the SMTP service they have there. I have connected to the same service using telnet to port 25, so I know for sure it exists and is available to the server. Are there any circumstances where php might not be able to open a socket connection (fsockopen)...? The php extension openssl is loaded and ok. The error is "Unable to connect to SMTP service". Thanks!

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  • Is there a future for Powerpoint VBA/VSTO?

    - by Sam Russo
    Does anyone know what the future holds for VBA/VSTO programming in Powerpoint? I've been working on a Office automation project and find it frustrating to work with Powerpoint in particular since it seems to be one level below VBA support found in Excel or Word. It feels like MS is trying to phase out support for VBA in PPT since they dropped macro recording in version 2007 and the object model lacks some key features support.

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  • Using Powershell to set user permissions in Reporting Services

    - by slugster
    I'm asking this because i'm a n00b when it comes to Powershell. How do i use Powershell to add a particular domain user or group to a specific reporting role in SSRS2005 (say the Content Manager or Browser role)? Is there a simple one or two line script to achieve it? Thanks! Note: this is definately programming related (not server admin), but i am also going to ask this on SF.

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  • Computer graphics research

    - by Shrey
    What are the best known labs for research in CG especially raytracing/rendering? I want to pursue Masters/PhD in this field and though I have been working on projects such as raytracers, it is all self-driven. What would be a good place to start, perhaps as a research intern? Also, what kind of background is expected for admissions in these programs, in terms of programming skills, formal education etc.?

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