Q_Id int64 337 49.3M | CreationDate stringlengths 23 23 | Users Score int64 -42 1.15k | Other int64 0 1 | Python Basics and Environment int64 0 1 | System Administration and DevOps int64 0 1 | Tags stringlengths 6 105 | A_Id int64 518 72.5M | AnswerCount int64 1 64 | is_accepted bool 2
classes | Web Development int64 0 1 | GUI and Desktop Applications int64 0 1 | Answer stringlengths 6 11.6k | Available Count int64 1 31 | Q_Score int64 0 6.79k | Data Science and Machine Learning int64 0 1 | Question stringlengths 15 29k | Title stringlengths 11 150 | Score float64 -1 1.2 | Database and SQL int64 0 1 | Networking and APIs int64 0 1 | ViewCount int64 8 6.81M |
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1,602,122 | 2009-10-21T16:51:00.000 | 32 | 0 | 1 | 0 | python,casting,types,coercion | 1,602,151 | 2 | true | 0 | 0 | I think "casting" shouldn't be used for Python; there are only type conversion, but no casts (in the C sense). A type conversion is done e.g. through int(o) where the object o is converted into an integer (actually, an integer object is constructed out of o). Coercion happens in the case of binary operations: if you do... | 1 | 35 | 0 | In the Python documentation and on mailing lists I see that values are sometimes "cast", and sometimes "coerced". | What's the difference between casting and coercion in Python? | 1.2 | 0 | 0 | 33,210 |
1,602,177 | 2009-10-21T17:00:00.000 | -3 | 0 | 0 | 0 | python,python-3.x,parallel-processing,cluster-computing | 1,602,353 | 7 | false | 0 | 0 | "Would it be possible to make a python cluster"
Yes.
I love yes/no questions. Anything else you want to know?
(Note that Python 3 has few third-party libraries yet, so you may wanna stay with Python 2 at the moment.) | 1 | 8 | 0 | Would it be possible to make a python cluster, by writing a telnet server, then telnet-ing the commands and output back-and-forth? Has anyone got a better idea for a python compute cluster?
PS. Preferably for python 3.x, if anyone knows how. | Python compute cluster | -0.085505 | 0 | 0 | 18,293 |
1,602,516 | 2009-10-21T18:03:00.000 | -1 | 1 | 0 | 0 | python,frameworks,cgi,pylons | 1,603,021 | 2 | false | 0 | 0 | maybe you should direct your search towards inter process commmunication and make a search process that returns the results to the web server. This search process will be running all the time assuming you have your own server. | 1 | 2 | 0 | I have a website that right now, runs by creating static html pages from a cron job that runs nightly.
I'd like to add some search and filtering features using a CGI type script, but my script will have enough of a startup time (maybe a few seconds?) that I'd like it to stay resident and serve multiple requests.
This ... | I want to create a "CGI script" in python that stays resident in memory and services multiple requests | -0.099668 | 0 | 0 | 602 |
1,602,919 | 2009-10-21T19:02:00.000 | 2 | 0 | 0 | 0 | python,xml,python-3.x | 1,603,011 | 2 | false | 0 | 0 | Sure it is possible.
The xml.etree.ElementTree module will help you with parsing XML, finding tags and replacing values.
If you know a little bit more about the XML file you want to change, you can probably make the task a bit easier than if you need to write a generic function that will handle any XML file.
If you ar... | 1 | 0 | 0 | I have a XML document "abc.xml":
I need to write a function replace(name, newvalue) which can replace the value node with tag 'name' with the new value and write it back to the disk. Is this possible in python? How should I do this? | Setting value for a node in XML document in Python | 0.197375 | 0 | 1 | 2,424 |
1,603,109 | 2009-10-21T19:36:00.000 | 11 | 1 | 0 | 1 | python,linux,scripting,daemons | 8,956,634 | 16 | false | 0 | 0 | how about using $nohup command on linux?
I use it for running my commands on my Bluehost server.
Please advice if I am wrong. | 4 | 213 | 0 | I have written a Python script that checks a certain e-mail address and passes new e-mails to an external program. How can I get this script to execute 24/7, such as turning it into daemon or service in Linux. Would I also need a loop that never ends in the program, or can it be done by just having the code re execut... | How to make a Python script run like a service or daemon in Linux | 1 | 0 | 0 | 365,270 |
1,603,109 | 2009-10-21T19:36:00.000 | 7 | 1 | 0 | 1 | python,linux,scripting,daemons | 35,008,431 | 16 | false | 0 | 0 | If you are using terminal(ssh or something) and you want to keep a long-time script working after you log out from the terminal, you can try this:
screen
apt-get install screen
create a virtual terminal inside( namely abc): screen -dmS abc
now we connect to abc: screen -r abc
So, now we can run python script: python ke... | 4 | 213 | 0 | I have written a Python script that checks a certain e-mail address and passes new e-mails to an external program. How can I get this script to execute 24/7, such as turning it into daemon or service in Linux. Would I also need a loop that never ends in the program, or can it be done by just having the code re execut... | How to make a Python script run like a service or daemon in Linux | 1 | 0 | 0 | 365,270 |
1,603,109 | 2009-10-21T19:36:00.000 | 1 | 1 | 0 | 1 | python,linux,scripting,daemons | 20,908,406 | 16 | false | 0 | 0 | Use whatever service manager your system offers - for example under Ubuntu use upstart. This will handle all the details for you such as start on boot, restart on crash, etc. | 4 | 213 | 0 | I have written a Python script that checks a certain e-mail address and passes new e-mails to an external program. How can I get this script to execute 24/7, such as turning it into daemon or service in Linux. Would I also need a loop that never ends in the program, or can it be done by just having the code re execut... | How to make a Python script run like a service or daemon in Linux | 0.012499 | 0 | 0 | 365,270 |
1,603,109 | 2009-10-21T19:36:00.000 | 12 | 1 | 0 | 1 | python,linux,scripting,daemons | 19,515,492 | 16 | false | 0 | 0 | cron is clearly a great choice for many purposes. However it doesn't create a service or daemon as you requested in the OP. cron just runs jobs periodically (meaning the job starts and stops), and no more often than once / minute. There are issues with cron -- for example, if a prior instance of your script is still... | 4 | 213 | 0 | I have written a Python script that checks a certain e-mail address and passes new e-mails to an external program. How can I get this script to execute 24/7, such as turning it into daemon or service in Linux. Would I also need a loop that never ends in the program, or can it be done by just having the code re execut... | How to make a Python script run like a service or daemon in Linux | 1 | 0 | 0 | 365,270 |
1,603,189 | 2009-10-21T19:52:00.000 | 2 | 0 | 1 | 0 | python,jython,signals | 1,603,283 | 1 | true | 0 | 0 | I would imagine Unix-style signals are difficult to do on the JVM, since the JVM has no notion of signals, and it is likely some JNI magic would be required to get this to work.
In Jython 2.5, the module exists, but seems to throw NotImplementedError for most functions. | 1 | 2 | 0 | I can't find any reference to the 'signal' class being left out in Jython. Using Jython 2.1.
Thanks | Why can I not import the Python module 'signal' using Jython, in Linux? | 1.2 | 0 | 0 | 242 |
1,603,658 | 2009-10-21T21:08:00.000 | 0 | 0 | 0 | 1 | python,windows,process | 1,603,828 | 3 | false | 0 | 0 | subprocess.Popen objects come with a kill and a terminate method (differs in which signal you send to the process).
signal.signal allows you install signal handlers, in which you can call the child's kill method. | 1 | 6 | 0 | I am writing a python program that lauches a subprocess (using Popen).
I am reading stdout of the subprocess, doing some filtering, and writing to
stdout of main process.
When I kill the main process (cntl-C) the subprocess keeps running.
How do I kill the subprocess too? The subprocess is likey to run a long time.
Con... | kill subprocess when python process is killed? | 0 | 0 | 0 | 3,964 |
1,603,688 | 2009-10-21T21:13:00.000 | 2 | 0 | 0 | 0 | python,algorithm,image,image-processing,python-imaging-library | 1,603,723 | 4 | false | 0 | 1 | If you know the statespace of your data, you can use Principal Component Analysis. With PCA all of the objects must be posed (in the center of the screen). PCA will not do detection, but it will seperate objects into unique layers in which you can identify as being a triangle, etc. Also note: this is not scale or rotat... | 1 | 36 | 0 | what I want to do is a image recognition for a simple app:
given image (500 x 500) pxs ( 1 color background )
the image will have only 1 geometric figure (triangle or square or smaleyface :) ) of (50x50) pxs.
python will do the recognition of the figure and display what geometric figure is.
any links? any hints? any ... | python image recognition | 0.099668 | 0 | 0 | 38,079 |
1,603,940 | 2009-10-21T22:08:00.000 | 2 | 0 | 1 | 0 | python,traceback | 1,843,184 | 7 | true | 0 | 0 | What about not changing the traceback? The two things you request can both be done more easily in a different way.
If the exception from the library is caught in the developer's code and a new exception is raised instead, the original traceback will of course be tossed. This is how exceptions are generally handled..... | 1 | 28 | 0 | I'm working on a Python library used by third-party developers to write extensions for our core application.
I'd like to know if it's possible to modify the traceback when raising exceptions, so the last stack frame is the call to the library function in the developer's code, rather than the line in the library that ra... | How can I modify a Python traceback object when raising an exception? | 1.2 | 0 | 0 | 12,932 |
1,604,079 | 2009-10-21T22:43:00.000 | 0 | 0 | 1 | 0 | python,pylons,paste | 1,843,498 | 4 | false | 1 | 0 | To answer your basic question directly, you should be able to use threads just as you'd like. The "killing hung threads" part is paste cleaning up its own threads, not yours.
There are other packages that might help, etc, but I'd suggest you start with simple threads and see how far you get. Only then will you know w... | 2 | 1 | 0 | I'm writing a web application using pylons and paste. I have some work I want to do after an HTTP request is finished (send some emails, write some stuff to the db, etc) that I don't want to block the HTTP request on.
If I start a thread to do this work, is that OK? I always see this stuff about paste killing off hung ... | starting my own threads within python paste | 0 | 0 | 0 | 862 |
1,604,079 | 2009-10-21T22:43:00.000 | 0 | 0 | 1 | 0 | python,pylons,paste | 1,768,292 | 4 | false | 1 | 0 | Take a look at gearman, it was specifically made for farming out tasks to 'workers' to handle. They can even handle it in a different language entirely. You can come back and ask if the task was completed, or just let it complete. That should work well for many tasks.
If you absolutely need to ensure it was completed, ... | 2 | 1 | 0 | I'm writing a web application using pylons and paste. I have some work I want to do after an HTTP request is finished (send some emails, write some stuff to the db, etc) that I don't want to block the HTTP request on.
If I start a thread to do this work, is that OK? I always see this stuff about paste killing off hung ... | starting my own threads within python paste | 0 | 0 | 0 | 862 |
1,604,391 | 2009-10-22T00:25:00.000 | 1 | 0 | 1 | 0 | python,oop | 1,604,426 | 5 | false | 0 | 0 | There are many 'mindsets' that you could adopt to help in the design process (some of which point towards OO and some that don't). I think it is often better to start with questions rather than answers (i.e. rather than say, 'how can I apply inheritance to this' you should ask how this system might expect to change ove... | 3 | 6 | 0 | I'm trying to learn object oriented programming, but am having a hard time overcoming my structured programming background (mainly C, but many others over time). I thought I'd write a simple check register program as an exercise. I put something together pretty quickly (python is a great language), with my data in so... | Object oriented design? | 0.039979 | 0 | 0 | 1,625 |
1,604,391 | 2009-10-22T00:25:00.000 | 7 | 0 | 1 | 0 | python,oop | 1,604,427 | 5 | false | 0 | 0 | You don't have to throw out structured programming to do object-oriented programming. The code is still structured, it just belongs to the objects rather than being separate from them.
In classical programming, code is the driving force that operates on data, leading to a dichotomy (and the possibility that code can op... | 3 | 6 | 0 | I'm trying to learn object oriented programming, but am having a hard time overcoming my structured programming background (mainly C, but many others over time). I thought I'd write a simple check register program as an exercise. I put something together pretty quickly (python is a great language), with my data in so... | Object oriented design? | 1 | 0 | 0 | 1,625 |
1,604,391 | 2009-10-22T00:25:00.000 | 3 | 0 | 1 | 0 | python,oop | 1,604,403 | 5 | false | 0 | 0 | "My data is basically a list of accounts"
Account is a class.
"dicts that represent transactions"
Transaction appears to be a class. You happen to have elected to represent this as a dict.
That's your first pass at OO design. Focus on the Responsibilities and Collaborators.
You have at least two classes of objects. | 3 | 6 | 0 | I'm trying to learn object oriented programming, but am having a hard time overcoming my structured programming background (mainly C, but many others over time). I thought I'd write a simple check register program as an exercise. I put something together pretty quickly (python is a great language), with my data in so... | Object oriented design? | 0.119427 | 0 | 0 | 1,625 |
1,604,811 | 2009-10-22T03:06:00.000 | 1 | 0 | 0 | 0 | python,user-interface | 1,604,842 | 2 | false | 0 | 1 | If by printf you mean exactly thqt call from C code, you need to redirect (and un-buffer) your standard output (file descriptor 0) to somewhere you can pick up the data from -- far from trivial, esp. in Windows, although maybe doable. But why not just change that call in your C code to something more sensible? (Worst... | 1 | 0 | 0 | I am using the Python/C API with my app and am wondering how you can get console output with a gui app. When there is a script error, it is displayed via printf but this obviously has no effect with a gui app. I want to be able to obtain the output without creating a console. Can this be done?
Edit - Im using Windows, ... | How to get output? | 0.099668 | 0 | 0 | 173 |
1,605,006 | 2009-10-22T04:20:00.000 | 1 | 0 | 1 | 0 | python,dll,wxwidgets,py2exe,gui2exe | 5,768,777 | 2 | false | 0 | 1 | what you need is to go to microsoft's download site and get visual C++ 2008 redistributed package. Tell it to do a repair and search for the driver. Copy the driver to the DLL folder in the python directory | 1 | 9 | 0 | I'm trying to compile my python script into a single .exe using gui2exe (which uses py2exe to create a .exe). My program is using wxWidgets and everytime I try to compile it I get the following error message:
error MSVCP90.dll: No such file or directory.
I have already downloaded and installed the VC++ redistributab... | Making a Windows .exe with gui2exe does not work because of missing MSVCP90.dll | 0.099668 | 0 | 0 | 3,149 |
1,605,022 | 2009-10-22T04:29:00.000 | 2 | 0 | 1 | 0 | python,file,runtime | 1,605,039 | 2 | true | 0 | 1 | The best way to tell is to try it on 'clean' installations of windows and see what it complains about. Virtual machines are a good way to do that. | 1 | 2 | 0 | I have an app that uses the python/c api and I was wondering what files I need to distribute with it? The app runs on Windows and links with libpython31.a Are there any other files? I tried the app on a seperate Win2k system and it said that python31.dll was needed so theres at least one.
Edit - My app is written in C+... | What files do I need to include with my Python app? | 1.2 | 0 | 0 | 260 |
1,605,662 | 2009-10-22T08:04:00.000 | 1 | 0 | 0 | 0 | python,django,django-models | 37,202,110 | 7 | false | 1 | 0 | In django 1.6
At first we have run - python manage.py sql <app name>
Then we have to run - python manage.py syncdb | 3 | 86 | 0 | I have recently updated my model, added a BooleanField to it however when I do python manage.py syncdb, it doesn't add the new field to the database for the model. How can I fix this ? | django syncdb and an updated model | 0.028564 | 0 | 0 | 51,126 |
1,605,662 | 2009-10-22T08:04:00.000 | 0 | 0 | 0 | 0 | python,django,django-models | 27,652,020 | 7 | false | 1 | 0 | If you run Django with Apache and MySQL, restart apache after making migration with makemigrations. | 3 | 86 | 0 | I have recently updated my model, added a BooleanField to it however when I do python manage.py syncdb, it doesn't add the new field to the database for the model. How can I fix this ? | django syncdb and an updated model | 0 | 0 | 0 | 51,126 |
1,605,662 | 2009-10-22T08:04:00.000 | 2 | 0 | 0 | 0 | python,django,django-models | 1,605,670 | 7 | false | 1 | 0 | Havent used django in a while, but i seem to remember that syncdb does perform alter commands on db tables. you have to drop the table then run again and it will create again.
edit: sorry does NOT perform alter. | 3 | 86 | 0 | I have recently updated my model, added a BooleanField to it however when I do python manage.py syncdb, it doesn't add the new field to the database for the model. How can I fix this ? | django syncdb and an updated model | 0.057081 | 0 | 0 | 51,126 |
1,605,706 | 2009-10-22T08:18:00.000 | 0 | 0 | 0 | 0 | python,django,internationalization | 2,450,262 | 3 | false | 1 | 0 | Depends on application and architecture...
Hack provided by Ignacio should works, but what is you will run in non activated yet thread?
I would use Ignacio solution + add Queue visible by all threads, monkeypatch trans_real.activate function and set attribute in queue. | 1 | 2 | 0 | django.utils.translation.get_language() returns default locale if translation is not activated. Is there a way to find out whether the translation is activated (via translation.activate()) or not? | Django: How to detect if translation is activated? | 0 | 0 | 0 | 735 |
1,606,700 | 2009-10-22T11:53:00.000 | 2 | 0 | 1 | 0 | python,tkinter | 1,606,815 | 1 | false | 0 | 1 | Check the .after method of your Tk() object. This allows you to use Tk's timer to fire events within the gui's own loop by giving it a length of time and a callback method. | 1 | 1 | 0 | I am writing a python app using Tkinter for buttons and graphics and having trouble getting a timer working, what I need is a sample app that has three buttons and a label.
[start timer] [stop timer] [quit]
When I press the start button a function allows the label to count up from zero every 5 seconds, the stop button... | Timer in Python | 0.379949 | 0 | 0 | 1,711 |
1,606,746 | 2009-10-22T12:02:00.000 | 1 | 0 | 0 | 1 | python,netbeans | 1,606,803 | 2 | false | 1 | 0 | I just installed Python for NetBeans yesterday and hadn't tried the debugger, so just tried it, and I got the same error. So I thought maybe it's a Firewall issue, disabled my Firewall and retried it, and then it worked.
However I restarted the Firewall and now it's still working, so I don't know. I saw the Netbeans op... | 2 | 4 | 0 | I have a problem with debugging Python programs under the Netbeans IDE. When I start debugging, the debugger writes the following log and error. Thank you for help.
[LOG]PythonDebugger : overall Starting
>>>[LOG]PythonDebugger.taskStarted : I am Starting a new Debugging Session ...
[LOG]This window is an interactive d... | Python debugging in Netbeans | 0.099668 | 0 | 0 | 2,156 |
1,606,746 | 2009-10-22T12:02:00.000 | 1 | 0 | 0 | 1 | python,netbeans | 1,636,617 | 2 | false | 1 | 0 | For Python I like WingIDE from Wingware. | 2 | 4 | 0 | I have a problem with debugging Python programs under the Netbeans IDE. When I start debugging, the debugger writes the following log and error. Thank you for help.
[LOG]PythonDebugger : overall Starting
>>>[LOG]PythonDebugger.taskStarted : I am Starting a new Debugging Session ...
[LOG]This window is an interactive d... | Python debugging in Netbeans | 0.099668 | 0 | 0 | 2,156 |
1,607,641 | 2009-10-22T14:29:00.000 | 2 | 1 | 0 | 1 | python,linux,profiling | 1,608,157 | 2 | false | 0 | 0 | I'm not sure if python will provide the low level information you are looking for. You might want to look at oprofile and latencytop though. | 1 | 1 | 0 | I've been using Python's built-in cProfile tool with some pretty good success. But I'd like to be able to access more information such as how long I'm waiting for I/O (and what kind of I/O I'm waiting on) or how many cache misses I have. Are there any Linux tools to help with this beyond your basic time command? | What profiling tools exist for Python on Linux beyond the ones included in the standard library? | 0.197375 | 0 | 0 | 1,160 |
1,608,724 | 2009-10-22T17:26:00.000 | 1 | 0 | 0 | 1 | python,subprocess | 1,608,884 | 3 | true | 0 | 0 | No, but you can simply subclass and extend the Popen class to store the time it was created. | 1 | 1 | 0 | Is there an easy way to find out the current (real or cpu) run time of a subprocess.Popen instance? | Run time of a subprocess.Popen instance | 1.2 | 0 | 0 | 1,488 |
1,609,460 | 2009-10-22T19:32:00.000 | 5 | 0 | 1 | 0 | python,pydev | 1,609,487 | 3 | false | 0 | 0 | You need to set your PYTHONPATH accordingly (Google search is your friend) or use *.pth in your installation site-packages directory pointing to your project path. Don't forget to set your interpreter details with Pydev (Window->Preferences->Pydev->interpreter). | 1 | 8 | 0 | Newbie question (I'm just getting started with Python and Pydev):
I've created a project "Playground" with (standard?) src/root sub-folder. In there I've created example.py.
How do I import my "example" module into Pydev's interactive console?
">>> import example" gives: "ImportError: No module named example" | How import Pydev project into interactive console? | 0.321513 | 0 | 0 | 4,934 |
1,610,305 | 2009-10-22T22:18:00.000 | 23 | 0 | 1 | 0 | python,user-interface | 1,610,340 | 5 | false | 0 | 0 | Ctrl+[ should do the trick for unindenting.
Conversely, you can indent with Ctrl+], but IDLE generally handles indenting much better than unindenting. | 3 | 9 | 0 | I want to write the following statment in IDLE (Python GUI)
>>> if x == 0:
... x = 0
... print('Negative changed to zero')
... elif x == 0:
How can I get the unindention for the elif statment ?
Some additional facts:
I tried backspace and shift + tab, that doesn't help.
Runing on Windows.
Thanks.
Sorry, ... | How do I unindent using IDLE (Python gui) | 1 | 0 | 0 | 10,493 |
1,610,305 | 2009-10-22T22:18:00.000 | 2 | 0 | 1 | 0 | python,user-interface | 1,610,353 | 5 | false | 0 | 0 | Backspace works for me.
If you go to Options->Configure IDLE and click on the Keys tab, what options are selected? It might make a difference - I have IDLE Classic Windows. | 3 | 9 | 0 | I want to write the following statment in IDLE (Python GUI)
>>> if x == 0:
... x = 0
... print('Negative changed to zero')
... elif x == 0:
How can I get the unindention for the elif statment ?
Some additional facts:
I tried backspace and shift + tab, that doesn't help.
Runing on Windows.
Thanks.
Sorry, ... | How do I unindent using IDLE (Python gui) | 0.07983 | 0 | 0 | 10,493 |
1,610,305 | 2009-10-22T22:18:00.000 | 4 | 0 | 1 | 0 | python,user-interface | 35,314,626 | 5 | false | 0 | 0 | ctrl + [ in Windows
command + [ in Mac | 3 | 9 | 0 | I want to write the following statment in IDLE (Python GUI)
>>> if x == 0:
... x = 0
... print('Negative changed to zero')
... elif x == 0:
How can I get the unindention for the elif statment ?
Some additional facts:
I tried backspace and shift + tab, that doesn't help.
Runing on Windows.
Thanks.
Sorry, ... | How do I unindent using IDLE (Python gui) | 0.158649 | 0 | 0 | 10,493 |
1,610,371 | 2009-10-22T22:30:00.000 | 3 | 0 | 1 | 0 | python,iterator | 1,610,418 | 5 | false | 0 | 0 | A class supporting the __iter__ method will return an iterator object instance: an object supporting the next() method. This object will be usuable in the statements "for" and "in". | 2 | 23 | 0 | Despite reading up on it, I still dont quite understand how __iter__ works. What would be a simple explaination?
I've seen def__iter__(self): return self. I don't see how this works or the steps on how this works. | How does __iter__ work? | 0.119427 | 0 | 0 | 13,949 |
1,610,371 | 2009-10-22T22:30:00.000 | 28 | 0 | 1 | 0 | python,iterator | 1,610,437 | 5 | false | 0 | 0 | As simply as I can put it:
__iter__ defines a method on a class which will return an iterator (an object that successively yields the next item contained by your object).
The iterator object that __iter__() returns can be pretty much any object, as long as it defines a next() method.
The next method will be called by s... | 2 | 23 | 0 | Despite reading up on it, I still dont quite understand how __iter__ works. What would be a simple explaination?
I've seen def__iter__(self): return self. I don't see how this works or the steps on how this works. | How does __iter__ work? | 1 | 0 | 0 | 13,949 |
1,610,822 | 2009-10-23T00:34:00.000 | 0 | 0 | 1 | 0 | python,distribution,cpython,pypy | 1,610,835 | 2 | false | 0 | 0 | I think it's clear when to use IronPython or Jython. If you want to use Python on CLR/JVM, either as the main language or a scripting language for your C#/Java application. | 1 | 5 | 0 | I have been programming in Python for a few years now and have always used CPython without thinking about it. The books and documentation I have read always refer to CPython too.
When does it make sense to use an alternative distribution (PyPy, Stackless, etc)?
Thanks! | when to use an alternative Python distribution? | 0 | 0 | 0 | 341 |
1,611,543 | 2009-10-23T05:31:00.000 | 5 | 1 | 0 | 1 | python,pythonw | 1,611,558 | 1 | true | 0 | 0 | sys.executable -- "A string giving the name of the executable binary for the Python interpreter, on systems where this makes sense." | 1 | 2 | 0 | I would like to redirect stderr and stdout to files when run inside of pythonw. How can I determine whether a script is running in pythonw or in python? | Determine if a script is running in pythonw? | 1.2 | 0 | 0 | 1,325 |
1,612,733 | 2009-10-23T11:04:00.000 | -15 | 0 | 1 | 0 | python,distutils | 1,613,085 | 14 | false | 0 | 0 | Figured out a workaround: I renamed my lgpl2.1_license.txt to lgpl2.1_license.txt.py, and put some triple quotes around the text. Now I don't need to use the data_files option nor to specify any absolute paths. Making it a Python module is ugly, I know, but I consider it less ugly than specifying absolute paths. | 1 | 261 | 0 | How do I make setup.py include a file that isn't part of the code? (Specifically, it's a license file, but it could be any other thing.)
I want to be able to control the location of the file. In the original source folder, the file is in the root of the package. (i.e. on the same level as the topmost __init__.py.) I wa... | Including non-Python files with setup.py | -1 | 0 | 0 | 157,529 |
1,613,927 | 2009-10-23T14:41:00.000 | 2 | 0 | 1 | 0 | python,debugging,pydev | 6,309,211 | 3 | false | 0 | 0 | You can run arbitrary commands in the console during the breakpoint. For my needs, this typically achieves the same purpose as coding live, although I do wish it were as elegant as simply using the editor. | 2 | 6 | 0 | I am new to python and haven't been able to find out whether this is possible or not.
I am using the PyDev plugin under Eclipse, and basically all I want to find out is, is it possible to edit code whilst you're sitting at a breakpoint? I.e. Edit code whilst you're debugging.
It allows me to do this at present, but it ... | Python Debugging: code editing on the fly | 0.132549 | 0 | 0 | 1,488 |
1,613,927 | 2009-10-23T14:41:00.000 | 2 | 0 | 1 | 0 | python,debugging,pydev | 1,614,052 | 3 | false | 0 | 0 | When you start a Python program, it will be compiled into bytecode (and possibly saved as .pyc file). That means you can change the source but since you don't "open" the source again, the change won't be picked up.
There are systems like TurboGears (a web framework) which detect these changes and restart themselves but... | 2 | 6 | 0 | I am new to python and haven't been able to find out whether this is possible or not.
I am using the PyDev plugin under Eclipse, and basically all I want to find out is, is it possible to edit code whilst you're sitting at a breakpoint? I.e. Edit code whilst you're debugging.
It allows me to do this at present, but it ... | Python Debugging: code editing on the fly | 0.132549 | 0 | 0 | 1,488 |
1,614,059 | 2009-10-23T15:02:00.000 | 3 | 0 | 1 | 0 | python,text-to-speech | 41,871,110 | 14 | false | 0 | 0 | You can use espeak using python for text to speech converter.
Here is an example python code
from subprocess import call
speech="Hello World!"
call(["espeak",speech])
P.S : if espeak isn't installed on your linux system then you need to install it first.
Open terminal(using ctrl + alt + T) and type
s... | 1 | 78 | 0 | How could I make Python say some text?
I could use Festival with subprocess but I won't be able to control it (or maybe in interactive mode, but it won't be clean).
Is there a Python TTS library? Like an API for Festival, eSpeak, ... ? | How to make Python speak | 0.042831 | 0 | 0 | 169,591 |
1,614,190 | 2009-10-23T15:24:00.000 | 2 | 0 | 1 | 0 | python | 1,614,204 | 3 | false | 0 | 0 | Write a comment? Python comments start with #. | 1 | 1 | 0 | When writing code in Python, how can you write something next to it that explains what the code is doing, but which doesn't affect the code? | How do I add text describing the code into a Python source file? | 0.132549 | 0 | 0 | 419 |
1,614,898 | 2009-10-23T17:33:00.000 | 5 | 0 | 1 | 1 | python,windows | 1,615,021 | 7 | false | 0 | 0 | If you don't want to install an IDE, you can also use IDLE which includes a Python editor and a console to test things out, this is part of the standard installation.
If you installed the python.org version, you will see an IDLE (Python GUI) in your start menu. I would recommend adding it to your Quick Launch or your d... | 4 | 1 | 0 | How do I run a Python file from the Windows Command Line (cmd.exe) so that I won't have to re-enter the code each time? | Running Python from the Windows Command Line | 0.141893 | 0 | 0 | 15,004 |
1,614,898 | 2009-10-23T17:33:00.000 | 0 | 0 | 1 | 1 | python,windows | 1,614,915 | 7 | false | 0 | 0 | In DOS you can use edit to create/modify text files, then execute them by typing python [yourfile] | 4 | 1 | 0 | How do I run a Python file from the Windows Command Line (cmd.exe) so that I won't have to re-enter the code each time? | Running Python from the Windows Command Line | 0 | 0 | 0 | 15,004 |
1,614,898 | 2009-10-23T17:33:00.000 | 2 | 0 | 1 | 1 | python,windows | 1,614,908 | 7 | false | 0 | 0 | If you put the Python executable (python.exe) on your path, you can invoke your script using python script.py where script.py is the Python file that you want to execute. | 4 | 1 | 0 | How do I run a Python file from the Windows Command Line (cmd.exe) so that I won't have to re-enter the code each time? | Running Python from the Windows Command Line | 0.057081 | 0 | 0 | 15,004 |
1,614,898 | 2009-10-23T17:33:00.000 | 0 | 0 | 1 | 1 | python,windows | 1,614,906 | 7 | false | 0 | 0 | Open a command prompt, by pressing Win+R and writing cmd in that , navigate to the script directory , and write : python script.py | 4 | 1 | 0 | How do I run a Python file from the Windows Command Line (cmd.exe) so that I won't have to re-enter the code each time? | Running Python from the Windows Command Line | 0 | 0 | 0 | 15,004 |
1,615,690 | 2009-10-23T20:21:00.000 | 3 | 0 | 0 | 1 | python,flash | 1,617,438 | 2 | true | 0 | 0 | One way it can be done using ffmpeg. ffmpeg needs to be installed with h.264 and h.263 codec support. Then following is the command to retrieve the video duration, which can be called via python system(command).
ffmpeg -i flv_file 2>&1 | grep "Duration" | cut -d ' ' -f 4 | sed s/,// | 1 | 2 | 0 | On Linux, YouTube places temporary flash files in /tmp. Nautilus can display the duration (Minutes:Seconds) of them, but I haven't found a way to extract the duration using python.'
The fewer dependencies your method requires the better.
Thanks in advance. | How to get duration of video flash file? | 1.2 | 0 | 0 | 1,706 |
1,616,228 | 2009-10-23T22:19:00.000 | 4 | 1 | 0 | 0 | python,testing,pyqt | 1,829,332 | 4 | false | 0 | 1 | It looks like PyQT4 includes a QtTest object that can be used for unit testing. | 1 | 18 | 0 | Does anyone know of a automated GUI testing package for that works with PyQT besides Squish? Nothing against Squish I am just looking for other packages. It would be cool if there were an open source package. I am doing my testing under Linux. | PyQT GUI Testing | 0.197375 | 0 | 0 | 3,768 |
1,617,494 | 2009-10-24T09:36:00.000 | 1 | 0 | 1 | 0 | python | 1,617,508 | 9 | false | 0 | 0 | Using grep with a cleverly constructed regex (does not begin or end with quotes) seems to be your best bet. | 4 | 29 | 0 | Sometimes I leave debugging printing statements in my project and it is difficult to find it. Is there any way to find out what line is printing something in particular?
Sidenote
It appears that searching smart can solve the majority of cases. In Pydev (and other IDEs) there is a Search function which allows searching ... | Finding a print statement in Python | 0.022219 | 0 | 0 | 8,846 |
1,617,494 | 2009-10-24T09:36:00.000 | 2 | 0 | 1 | 0 | python | 1,617,554 | 9 | false | 0 | 0 | The easiest way would be to use a "debug_print" function instead of plain "print".
That way you could just redefine the function and be sure you did not miss one...
and still have them handy if you need to debug that code again instead of editing your code back and forth each time.
(Yes leaving debug_print calls can ea... | 4 | 29 | 0 | Sometimes I leave debugging printing statements in my project and it is difficult to find it. Is there any way to find out what line is printing something in particular?
Sidenote
It appears that searching smart can solve the majority of cases. In Pydev (and other IDEs) there is a Search function which allows searching ... | Finding a print statement in Python | 0.044415 | 0 | 0 | 8,846 |
1,617,494 | 2009-10-24T09:36:00.000 | -1 | 0 | 1 | 0 | python | 1,617,725 | 9 | false | 0 | 0 | This probably doesnt answer your question directly, but you can get away with tons of print statements if you use pdb (python debugger) in a way to effectively debug and write code.
I know it works, because 99% of time you simple dont wanna print stuff, but you wanna set a breakpoint somewhere and see what the variable... | 4 | 29 | 0 | Sometimes I leave debugging printing statements in my project and it is difficult to find it. Is there any way to find out what line is printing something in particular?
Sidenote
It appears that searching smart can solve the majority of cases. In Pydev (and other IDEs) there is a Search function which allows searching ... | Finding a print statement in Python | -0.022219 | 0 | 0 | 8,846 |
1,617,494 | 2009-10-24T09:36:00.000 | 3 | 0 | 1 | 0 | python | 1,617,503 | 9 | false | 0 | 0 | Use grep:
grep -rn print . | 4 | 29 | 0 | Sometimes I leave debugging printing statements in my project and it is difficult to find it. Is there any way to find out what line is printing something in particular?
Sidenote
It appears that searching smart can solve the majority of cases. In Pydev (and other IDEs) there is a Search function which allows searching ... | Finding a print statement in Python | 0.066568 | 0 | 0 | 8,846 |
1,619,908 | 2009-10-25T03:24:00.000 | 4 | 1 | 1 | 0 | python,exception,attributes | 1,619,944 | 1 | true | 0 | 1 | From the docs to Py_Finalize():
Bugs and caveats: The destruction of
modules and objects in modules is done
in random order; this may cause
destructors (__del__() methods) to
fail when they depend on other objects
(even functions) or modules.
Dynamically loaded extension modules
loaded by Python are not ... | 1 | 2 | 0 | I have a C++ app that uses Python to load some scripts. It calls some functions in the scripts, and everything works fine until the app exits and calls Py_Finalize. Then it displays the following: (GetName is a function in one of the scripts)
Exception AttributeError: "'module' object has no attribute 'GetName'" in 'ga... | What is causing this Python exception? | 1.2 | 0 | 0 | 1,194 |
1,620,363 | 2009-10-25T08:31:00.000 | 4 | 0 | 0 | 0 | python | 1,620,413 | 4 | true | 1 | 0 | python standard module html.parser should allow you to parse simple html content and eliminate tags. you only have to derive HTMLParser, then overload all handle_*() methods so that they output or discard content, depending on the surrounding element tags. | 1 | 0 | 0 | I know that NLTK has it. But any else? | What is a light python library that can eliminate HTML tags? (and only text) | 1.2 | 0 | 0 | 746 |
1,620,575 | 2009-10-25T10:37:00.000 | 5 | 0 | 0 | 0 | python,mysql | 1,620,642 | 3 | false | 0 | 0 | _mysql is the one-to-one mapping of the rough mysql API. On top of it, the DB-API is built, handling things using cursors and so on.
If you are used to the low-level mysql API provided by libmysqlclient, then the _mysql module is what you need, but as another answer says, there's no real need to go so low-level. You c... | 1 | 11 | 0 | Two libraries for Mysql.
I've always used _mysql because it's simpler.
Can anyone tell me the difference, and why I should use which one in certain occasions? | Python: advantages and disvantages of _mysql vs MySQLdb? | 0.321513 | 1 | 0 | 4,941 |
1,621,430 | 2009-10-25T17:10:00.000 | 0 | 1 | 0 | 0 | python,ajax,cgi,web-applications,fastcgi | 11,067,328 | 5 | false | 1 | 0 | As suggested by a few of the others you can use a keep alive connection and instead of "return" statements use yield statements and instead of "print" statements also use yield statements. This will basically show everything that happens in the python script onto the website page.
After extensive searching and testing ... | 1 | 3 | 0 | I have a Python script that outputs something every second or two, but takes a long while to finish completely. I want to set up a website such that someone can directly invoke the script, and the output is sent to the screen while the script is running.
I don't want the user to wait until the script finishes complete... | How do I display real-time python script output on a website? | 0 | 0 | 0 | 5,553 |
1,622,038 | 2009-10-25T20:53:00.000 | 54 | 0 | 1 | 0 | python,django | 1,622,263 | 8 | false | 1 | 0 | ChristopheD's post is close to what you want. I don't have enough rep to make a comment :(
Instead of (which actually gives you the next upcoming monday):
>>> today + datetime.timedelta(days=-today.weekday(), weeks=1)
datetime.date(2009, 10, 26)
I would say:
>>> last_monday = today - datetime.timedelta(days=today.we... | 1 | 87 | 0 | How do I find the previous Monday's date, based off of the current date using Python? I thought maybe I could use: datetime.weekday() to do it, but I am getting stuck.
I basically want to find today's date and Mondays date to construct a date range query in django using: created__range=(start_date, end_date). | Find Monday's date with Python | 1 | 0 | 0 | 60,733 |
1,622,884 | 2009-10-26T02:52:00.000 | 2 | 0 | 0 | 0 | wxpython,drag,playing-cards | 1,623,027 | 2 | false | 0 | 1 | Going through the wxPython demo and looking at all the examples would be a good start. You'll likely find page Using Images | DragImage to be useful, since you'll probably want cards that you can drag.
Generally, the demo can help you do most things in wxPython, and also show you what wxPython can do, and it's worth t... | 1 | 0 | 0 | I know python and I'm a newibe with wx python but I would like to make a card game.
However I have no idea how to make a image follow the mouse and put it in the middle of the screen when the program running. It will be nice if you guys can help me out. | wx python card game | 0.197375 | 0 | 0 | 877 |
1,623,311 | 2009-10-26T06:06:00.000 | 6 | 0 | 0 | 0 | php,python,linux,perl | 1,623,338 | 5 | false | 1 | 0 | Any method you choose to determine the source of a request is only as reliable as the HTTP_REFERER information that is sent by the user's browser, which is not very. Requiring authentication is the only good way to protect content. | 2 | 2 | 0 | On my website I store user pictures in a simple manner such as:
"image/user_1.jpg".
I don't want visitors to be able to view images on my server just by trying user_ids. (Ex: www.mydomain.com/images/user_2.jpg, www.mydomain.com/images/user_3.jpg, so on...)
So far I have three solutions in mind:
I tried using .htaccess... | Restrict access to images on my website except through my own htmls | 1 | 1 | 0 | 4,621 |
1,623,311 | 2009-10-26T06:06:00.000 | 2 | 0 | 0 | 0 | php,python,linux,perl | 1,623,325 | 5 | false | 1 | 0 | You are right considering option #3. Use service script that would validate user and readfile() an image. Be sure to set correct Content-Type HTTP header via header() function prior to serving an image. For better isolation images should be put above web root directory, or protected by well written .htaccess rules - th... | 2 | 2 | 0 | On my website I store user pictures in a simple manner such as:
"image/user_1.jpg".
I don't want visitors to be able to view images on my server just by trying user_ids. (Ex: www.mydomain.com/images/user_2.jpg, www.mydomain.com/images/user_3.jpg, so on...)
So far I have three solutions in mind:
I tried using .htaccess... | Restrict access to images on my website except through my own htmls | 0.07983 | 1 | 0 | 4,621 |
1,623,331 | 2009-10-26T06:16:00.000 | 3 | 0 | 1 | 0 | python,pygame | 1,623,346 | 4 | false | 0 | 1 | Sadly, I have never studied algorithms so I have no clue on how to calculate a path.
Before you start writing games, you should educate yourself on those. This takes a little more effort at the beginning, but will save you much time later. | 1 | 0 | 0 | I'm working on an adventure game in Python using Pygame. My main problem is how I am going to define the boundaries of the room and make the main character walk aroud without hitting a boundary every time. Sadly, I have never studied algorithms so I have no clue on how to calculate a path. I know this question is quite... | Adventure game - walking around inside a room | 0.148885 | 0 | 0 | 1,431 |
1,623,538 | 2009-10-26T07:50:00.000 | 4 | 0 | 0 | 0 | python,django,psyco | 1,623,547 | 3 | false | 1 | 0 | You should be using fastcgi or wsgi with django, so the process won't be starting up for each request.
You really need to write your code to be psyco friendly if you want decent gains, and you will not benefit if your bottleneck is the database. | 2 | 4 | 0 | I know the benefits of Psyco for a Desktop app, but in a Web app where a process ( = a web page or an AJAX call) dies immediately after been fired, isn't it pointless ? | Does using Psyco with django make any sense? | 0.26052 | 0 | 0 | 1,160 |
1,623,538 | 2009-10-26T07:50:00.000 | 4 | 0 | 0 | 0 | python,django,psyco | 1,623,581 | 3 | true | 1 | 0 | First, as gribbler and Ibrahim mentioned, your process won't die unless you are using pure CGI... which you shouldn't be using.
Secondly, the bottleneck in most web apps are database queries, for which Psyco won't help.
If you happen to have a some logic that is computationally intensive it can certainly make sense to ... | 2 | 4 | 0 | I know the benefits of Psyco for a Desktop app, but in a Web app where a process ( = a web page or an AJAX call) dies immediately after been fired, isn't it pointless ? | Does using Psyco with django make any sense? | 1.2 | 0 | 0 | 1,160 |
1,624,570 | 2009-10-26T12:38:00.000 | 1 | 0 | 1 | 0 | java,python,user-interface,multithreading | 1,624,585 | 5 | false | 0 | 0 | I am a fan of Erlang:
Wx GUI tool
Regex (module regexp)
Cross-platform
Multi-threading (of course !)
EUnit testing
Of course Python is really appropriate too! | 3 | 1 | 0 | I'm interested in learning a programming language with support for GUI, multithreading and easy test manipulation (support for regex).
Mainly on Windows but preferably cross-platform. What does the Stack Overflow community suggest? | GUI + multithreading support + regex support. Which language? JAVA / Python / Ruby? | 0.039979 | 0 | 0 | 499 |
1,624,570 | 2009-10-26T12:38:00.000 | 5 | 0 | 1 | 0 | java,python,user-interface,multithreading | 1,624,603 | 5 | true | 0 | 0 | My suggestion would be Java. You can do all of that and much more. | 3 | 1 | 0 | I'm interested in learning a programming language with support for GUI, multithreading and easy test manipulation (support for regex).
Mainly on Windows but preferably cross-platform. What does the Stack Overflow community suggest? | GUI + multithreading support + regex support. Which language? JAVA / Python / Ruby? | 1.2 | 0 | 0 | 499 |
1,624,570 | 2009-10-26T12:38:00.000 | 1 | 0 | 1 | 0 | java,python,user-interface,multithreading | 1,624,683 | 5 | false | 0 | 0 | If you really like typing go for Java, if you really like whitespace go for python, if you like programming more than you like high performance go for Ruby.
Seriously, Java is very complete and very cross-platform. I don't know how Python adds up for GUI stuff but when I was looking at Ruby in detail a couple of years ... | 3 | 1 | 0 | I'm interested in learning a programming language with support for GUI, multithreading and easy test manipulation (support for regex).
Mainly on Windows but preferably cross-platform. What does the Stack Overflow community suggest? | GUI + multithreading support + regex support. Which language? JAVA / Python / Ruby? | 0.039979 | 0 | 0 | 499 |
1,626,155 | 2009-10-26T17:30:00.000 | 0 | 0 | 0 | 0 | python,django,django-models,oop | 1,626,233 | 3 | false | 1 | 0 | You've got two options I can think of right now:
Since you don't want the field in the database your best bet is to define a method on the model that returns self.id * SOME_CONSTANT, say you call it big_id(). You can access this method anytime as yourObj.big_id(), and it will be available in templates as yourObj.big_i... | 1 | 4 | 0 | Every Django model has a default primary-key id created automatically. I want the model objects to have another attribute big_id which is calculated as:
big_id = id * SOME_CONSTANT
I want to access big_id as model_obj.big_id without the corresponding database table having a column called big_id.
Is this possible? | Is there an easy way to create derived attributes in Django Model/Python classes? | 0 | 0 | 0 | 1,644 |
1,626,326 | 2009-10-26T18:00:00.000 | 4 | 0 | 0 | 0 | python,django,deployment | 5,528,824 | 22 | false | 1 | 0 | For most of my projects I use following pattern:
Create settings_base.py where I store settings that are common for all environments
Whenever I need to use new environment with specific requirements I create new settings file (eg. settings_local.py) which inherits contents of settings_base.py and overrides/adds prope... | 4 | 339 | 0 | What is the recommended way of handling settings for local development and the production server? Some of them (like constants, etc) can be changed/accessed in both, but some of them (like paths to static files) need to remain different, and hence should not be overwritten every time the new code is deployed.
Currently... | How to manage local vs production settings in Django? | 0.036348 | 0 | 0 | 119,151 |
1,626,326 | 2009-10-26T18:00:00.000 | 14 | 0 | 0 | 0 | python,django,deployment | 1,626,371 | 22 | false | 1 | 0 | I use a settings_local.py and a settings_production.py. After trying several options I've found that it's easy to waste time with complex solutions when simply having two settings files feels easy and fast.
When you use mod_python/mod_wsgi for your Django project you need to point it to your settings file. If you point... | 4 | 339 | 0 | What is the recommended way of handling settings for local development and the production server? Some of them (like constants, etc) can be changed/accessed in both, but some of them (like paths to static files) need to remain different, and hence should not be overwritten every time the new code is deployed.
Currently... | How to manage local vs production settings in Django? | 1 | 0 | 0 | 119,151 |
1,626,326 | 2009-10-26T18:00:00.000 | 1 | 0 | 0 | 0 | python,django,deployment | 36,996,922 | 22 | false | 1 | 0 | As an alternative to maintain different file if you wiil:
If you are using git or any other VCS to push codes from local to server, what you can do is add the settings file to .gitignore.
This will allow you to have different content in both places without any problem. SO on server you can configure an independent vers... | 4 | 339 | 0 | What is the recommended way of handling settings for local development and the production server? Some of them (like constants, etc) can be changed/accessed in both, but some of them (like paths to static files) need to remain different, and hence should not be overwritten every time the new code is deployed.
Currently... | How to manage local vs production settings in Django? | 0.009091 | 0 | 0 | 119,151 |
1,626,326 | 2009-10-26T18:00:00.000 | 6 | 0 | 0 | 0 | python,django,deployment | 9,517,763 | 22 | false | 1 | 0 | The problem with most of these solutions is that you either have your local settings applied before the common ones, or after them.
So it's impossible to override things like
the env-specific settings define the addresses for the memcached pool, and in the main settings file this value is used to configure the cache b... | 4 | 339 | 0 | What is the recommended way of handling settings for local development and the production server? Some of them (like constants, etc) can be changed/accessed in both, but some of them (like paths to static files) need to remain different, and hence should not be overwritten every time the new code is deployed.
Currently... | How to manage local vs production settings in Django? | 1 | 0 | 0 | 119,151 |
1,626,403 | 2009-10-26T18:14:00.000 | 4 | 1 | 1 | 0 | python,email,mime | 1,626,650 | 3 | false | 0 | 0 | The way I've figured out to do it is:
Set the payload to an empty list with set_payload
Create the payload, and attach to the message. | 1 | 5 | 0 | I have an email that I'm reading with the Python email lib that I need to modify the attachments of. The email Message class has the "attach" method, but does not have anything like "detach". How can I remove an attachment from a multipart message? If possible, I want to do this without recreating the message from scra... | Python email lib - How to remove attachment from existing message? | 0.26052 | 0 | 0 | 6,827 |
1,626,786 | 2009-10-26T19:17:00.000 | 1 | 0 | 0 | 1 | python,streaming,hadoop,mapreduce | 1,664,639 | 3 | false | 0 | 0 | Is it possible to replace the outputFormatClass, when using streaming?
In a native Java implementation you would extend the MultipleTextOutputFormat class and modify the method that names the output file. Then define your implementation as new outputformat with JobConf's setOutputFormat method
you should verify, if thi... | 1 | 9 | 0 | Using only a mapper (a Python script) and no reducer, how can I output a separate file with the key as the filename, for each line of output, rather than having long files of output? | Generating Separate Output files in Hadoop Streaming | 0.066568 | 0 | 0 | 4,270 |
1,628,001 | 2009-10-27T00:04:00.000 | 5 | 1 | 0 | 0 | c++,python,c,perl,integration | 1,628,011 | 5 | false | 0 | 1 | Anything is "possible", but whether it is necessary or beneficial is debatable and highly depends on your requirements. Don't mix if you don't need to. Use the language that best fits the domain or target requirements.
I can't think of a scenario where one needs to mix Python and Perl as their domain is largely the sa... | 3 | 1 | 0 | I'm now thinking, is it possible to integrate Python, Perl and C/C++ and also doing a GUI application with this very nice mix of languages? | Python, Perl And C/C++ With GUI | 0.197375 | 0 | 0 | 735 |
1,628,001 | 2009-10-27T00:04:00.000 | 1 | 1 | 0 | 0 | c++,python,c,perl,integration | 1,628,012 | 5 | false | 0 | 1 | Everything is possible - but why add two and a half more levels of complexity? | 3 | 1 | 0 | I'm now thinking, is it possible to integrate Python, Perl and C/C++ and also doing a GUI application with this very nice mix of languages? | Python, Perl And C/C++ With GUI | 0.039979 | 0 | 0 | 735 |
1,628,001 | 2009-10-27T00:04:00.000 | 1 | 1 | 0 | 0 | c++,python,c,perl,integration | 1,628,013 | 5 | false | 0 | 1 | Python & Perl? together?
I can only think of an editor. | 3 | 1 | 0 | I'm now thinking, is it possible to integrate Python, Perl and C/C++ and also doing a GUI application with this very nice mix of languages? | Python, Perl And C/C++ With GUI | 0.039979 | 0 | 0 | 735 |
1,628,222 | 2009-10-27T01:02:00.000 | 20 | 0 | 1 | 0 | python,language-design | 1,628,300 | 4 | true | 0 | 0 | The big advantage is that built-in functions (and operators) can apply extra logic when appropriate, beyond simply calling the special methods. For example, min can look at several arguments and apply the appropriate inequality checks, or it can accept a single iterable argument and proceed similarly; abs when called ... | 2 | 10 | 0 | i am a python newbie, and i am not sure why python implemented len(obj), max(obj), and min(obj) as a static like functions (i am from the java language) over obj.len(), obj.max(), and obj.min()
what are the advantages and disadvantages (other than obvious inconsistency) of having len()... over the method calls?
why gui... | The advantages of having static function like len(), max(), and min() over inherited method calls | 1.2 | 0 | 0 | 1,752 |
1,628,222 | 2009-10-27T01:02:00.000 | 3 | 0 | 1 | 0 | python,language-design | 1,628,285 | 4 | false | 0 | 0 | It emphasizes the capabilities of an object, not its methods or type. Capabilites are declared by "helper" functions such as __iter__ and __len__ but they don't make up the interface. The interface is in the builtin functions, and beside this also in the buit-in operators like + and [] for indexing and slicing.
Sometim... | 2 | 10 | 0 | i am a python newbie, and i am not sure why python implemented len(obj), max(obj), and min(obj) as a static like functions (i am from the java language) over obj.len(), obj.max(), and obj.min()
what are the advantages and disadvantages (other than obvious inconsistency) of having len()... over the method calls?
why gui... | The advantages of having static function like len(), max(), and min() over inherited method calls | 0.148885 | 0 | 0 | 1,752 |
1,628,372 | 2009-10-27T01:56:00.000 | 5 | 0 | 0 | 0 | python,statistics,sas | 1,628,669 | 2 | false | 0 | 0 | yes. sas 9.2 can interact with soap and restful apis. i haven't had much success with twitter. i have had some success with google spreadsheets (in sas 9.1.3) and i've seen code to pull google analytics (in sas 9.2).
as with python and r, you can write the code in any text editor, but you'll need to have sas to actuall... | 1 | 1 | 0 | I have been taking a few graduate classes with a professor I like alot and she raves about SAS all of the time. I "grew up" learning stats using SPSS, and with their recent decisions to integrate their stats engine with R and Python, I find it difficult to muster up the desire to learn anything else. I am not that st... | SAS and Web Data | 0.462117 | 0 | 1 | 2,215 |
1,628,562 | 2009-10-27T03:07:00.000 | 4 | 0 | 0 | 0 | python,google-app-engine,leaderboard | 1,628,703 | 2 | true | 0 | 0 | If writes are very rare compared to reads (a key assumption in most key-value stores, and not just in those;-), then you might prefer to take a time hit when you need to update scores (a write) rather than to get the relative leaderboards (a read). Specifically, when a user's score change, queue up tasks for each of t... | 1 | 0 | 0 | Ive been working on a feature of my application to implement a leaderboard - basically stack rank users according to their score. Im currently tracking the score on an individual basis. My thought is that this leaderboard should be relative instead of absolute i.e. instead of having the top 10 highest scoring users a... | Real time update of relative leaderboard for each user among friends | 1.2 | 0 | 1 | 1,929 |
1,628,564 | 2009-10-27T03:07:00.000 | 1 | 0 | 0 | 0 | javascript,jquery,python | 1,628,598 | 3 | false | 1 | 0 | There are two general approaches:
Modify your Python code so that it runs as a CGI (or WSGI or whatever) module and generate the page of interest by running some server side code.
Use Javascript with jQuery to load the content of interest by running some client side code.
The difference between these two approaches i... | 1 | 1 | 0 | Basically, what I'm trying to do is simply make a small script that accesses finds the most recent post in a forum and pulls some text or an image out of it. I have this working in python, using the htmllib module and some regex. But, the script still isn't very convenient as is, it would be much nicer if I could som... | Is it possible access other webpages from within another page | 0.066568 | 0 | 1 | 213 |
1,628,766 | 2009-10-27T04:23:00.000 | 1 | 0 | 0 | 0 | python,proxy,multithreading,web-crawler,pool | 5,803,567 | 2 | false | 1 | 0 | usually proxies filter websites categorically based on how the website was created. It is difficult to transmit data through proxies based on categories. Eg youtube is classified as audio/video streams therefore youtube is blocked in some places espically schools.
If you want to bypass proxies and get the data off a we... | 1 | 1 | 0 | Instead of just using urllib does anyone know of the most efficient package for fast, multithreaded downloading of URLs that can operate through http proxies? I know of a few such as Twisted, Scrapy, libcurl etc. but I don't know enough about them to make a decision or even if they can use proxies.. Anyone know of the ... | Python Package For Multi-Threaded Spider w/ Proxy Support? | 0.099668 | 0 | 1 | 9,003 |
1,629,800 | 2009-10-27T10:08:00.000 | 2 | 0 | 0 | 0 | python,django,multithreading | 1,629,913 | 3 | false | 1 | 0 | Generally, your Django app already is multi-threaded. That's the way most of the standard Django servers operate -- they can tolerate multiple WSGI threads sending requests to them.
Further, you'll almost always have Django running under Apache, which is also multi-threaded.
If you use mod_wsgi, then Django may be par... | 1 | 1 | 0 | I need to develop an app that runs side by side with a django-app.
This will be the first time i develop a multithreaded app that runs next to a django-app so are there any 'gotchas' and 'traps' i should be aware of? | Are there any known issues with django and multithreading? | 0.132549 | 0 | 0 | 1,383 |
1,630,427 | 2009-10-27T12:19:00.000 | 0 | 0 | 0 | 0 | python,django,zip | 1,631,366 | 2 | true | 1 | 0 | it works with ZipFile.extractall | 1 | 0 | 0 | I have few uploads in this app, uploading csv files is working fine.
I have a model that has zip upload in it. Zip file is uploaded, can be viewed, but having issues extracting it.
class Message(models.Model):
uploadFile = models.FileField(_('images file (.zip)'),
upload_to='mes... | Django Zip upload permission problem | 1.2 | 0 | 0 | 677 |
1,630,728 | 2009-10-27T13:15:00.000 | 3 | 0 | 1 | 1 | python,python-3.x,python-idle | 19,543,322 | 2 | false | 0 | 0 | Type 'idle3' in the terminal window. That should launch your copy of idle 3.1 | 1 | 6 | 0 | I installed Python 3.1 yesterday on my Windows Vista PC, and was surprised to find that the version of IDLE is 2.6.4, for "Python 2.6.4 (r264:75708, Oct 26 2009, 08:23:19) [MSC v.1500 32 bit (Intel)] on win32"
I was hoping to use IDLE to investigate some of the new features of Python 3...
I guess I'm stuck with the com... | No IDLE for Python 3? | 0.291313 | 0 | 0 | 12,340 |
1,631,574 | 2009-10-27T15:23:00.000 | 2 | 0 | 0 | 0 | python,user-interface,qt,pyqt | 1,632,726 | 2 | true | 0 | 1 | I'm showing this as C++, which is what the documentation I'm looking at is in. It shouldn't be too difficult to convert to python.
You need to create a custom derivative of QLayoutItem, which overrides bool hasHeightForWidth() and int heightForWidth( int width) to preserve the aspect ratio somehow. You could either p... | 1 | 1 | 0 | If you have a QImage wrapped inside a QLabel, is it possible to scale it up or down when you resize the window and maintain the aspect ratio (so the image doesn't become distorted)? I figured out that it can scale using setScaledContents(), and you can set a minimum and maximum size, but the image still loses its aspec... | How to allow scaling with uniform aspect ratio in (Py)Qt? | 1.2 | 0 | 0 | 2,384 |
1,633,934 | 2009-10-27T22:03:00.000 | 0 | 0 | 1 | 0 | python,network-programming | 1,634,178 | 4 | false | 0 | 0 | If you're developing something as a learning exercise you might find it best to go with a structured text (ie. human readable and human writable) format.
An example would be to use a fixed number of fields per command, fixed width text fields and/or easily parsable field delimiters.
Generally text is less efficient in ... | 2 | 2 | 0 | I'm learning socket programming (in python) and I was wondering what the best/typical way of encapsulating data is? My packets will be used to issue run, stop, configure, etc. commands on the receiving side. Is it helpful to use JSON or just straight text? | Designing a simple network packet | 0 | 0 | 1 | 916 |
1,633,934 | 2009-10-27T22:03:00.000 | 1 | 0 | 1 | 0 | python,network-programming | 1,635,005 | 4 | false | 0 | 0 | I suggest plain text to begin with - it is easier to debug. The format that your text takes depends on what you're doing, how many commands, arguments, etc. Have you fleshed out how your commands will look? Once you figure out what that looks like it'll likely suggest a format all on its own.
Are you using TCP or UDP? ... | 2 | 2 | 0 | I'm learning socket programming (in python) and I was wondering what the best/typical way of encapsulating data is? My packets will be used to issue run, stop, configure, etc. commands on the receiving side. Is it helpful to use JSON or just straight text? | Designing a simple network packet | 0.049958 | 0 | 1 | 916 |
1,634,509 | 2009-10-28T00:27:00.000 | 2 | 0 | 0 | 0 | python,pygame,geometry-surface,blit | 1,634,553 | 11 | false | 0 | 0 | I don't know what API you're using, so here's a vague answer:
In virtually all cases "clearing" a surface simply blits a coloured quad of the same size as the surface onto it. The colour used is whatever you want your clear colour to be.
If you know how do blit, just blit a white quad of the same size onto the surfac... | 3 | 8 | 0 | Is there any way to clear a surface from anything that has been blitted to it? | Is there any way to "clear" a surface? | 0.036348 | 0 | 0 | 23,510 |
1,634,509 | 2009-10-28T00:27:00.000 | 2 | 0 | 0 | 0 | python,pygame,geometry-surface,blit | 1,637,386 | 11 | false | 0 | 0 | You can't undo one graphic written over the top of another graphic any more than you can undo one chalk illustration drawn over the top of another chalk illustration on the same board.
What is typically done in graphics is what you'd do with the chalkboard - clear the whole lot, and next time only redraw what you want ... | 3 | 8 | 0 | Is there any way to clear a surface from anything that has been blitted to it? | Is there any way to "clear" a surface? | 0.036348 | 0 | 0 | 23,510 |
1,634,509 | 2009-10-28T00:27:00.000 | 1 | 0 | 0 | 0 | python,pygame,geometry-surface,blit | 26,833,607 | 11 | false | 0 | 0 | .fill((255,255,255,0)) appears to work for me anyway. | 3 | 8 | 0 | Is there any way to clear a surface from anything that has been blitted to it? | Is there any way to "clear" a surface? | 0.01818 | 0 | 0 | 23,510 |
1,635,565 | 2009-10-28T00:47:00.000 | 1 | 0 | 0 | 0 | python,powerpoint | 1,737,489 | 4 | false | 0 | 0 | Save the file with the extension ".pps". That will make powerpoint open the file in presentation mode.
The presentaion needs to designed to advance slides, else you will have to script that part. | 1 | 2 | 0 | I was wondering how I can make a script load powerpoint file, advance slides automatically and put it on full screen. Is there a way to make windows do that? Can I just load powerpoint.exe and maybe use some sort of API/Pipe to give commands from another script.
To make a case: I'm making a script that automatically sc... | How do I make powerpoint play presentations/load up ppts automatically? | 0.049958 | 0 | 0 | 4,926 |
1,635,638 | 2009-10-28T07:25:00.000 | 1 | 0 | 0 | 0 | python,django,google-app-engine,referenceproperty | 1,636,697 | 2 | false | 1 | 0 | I got it to work by overriding the init method of the modelform to pick up the correct fields as I had to do filtering of the choices as well. | 1 | 1 | 0 | The default choice field display of a reference property in appengine returns the choices
as the string representation of the entire object. What is the best method to override this behaviour? I tried to override str() in the referenced class. But it does not work. | How do we override the choice field display of a reference property in appengine using Django? | 0.099668 | 0 | 0 | 289 |
1,638,870 | 2009-10-28T17:40:00.000 | 1 | 0 | 0 | 0 | python,django,frameworks,templating | 1,639,340 | 2 | false | 1 | 0 | I don't see you getting away from writing templates, especially if you would want to format it, even slightly.
However you can re-use basic templates, for e.g, create a generic object_list.html and object_detail.html
that will basically contain the information to loop over the object list and present it, and show the o... | 1 | 3 | 0 | So, Generic views are pretty cool, but what I'm interested in is something that's a generic template.
so for example, I can give it an object and it'll just tostring it for me.
or if I give it a list, it'll just iterate over the objects and tostring them as a ul (or tr, or whatever else it deems necessary).
for most us... | django generic templates | 0.099668 | 0 | 0 | 1,334 |
1,640,080 | 2009-10-28T20:57:00.000 | 0 | 0 | 1 | 0 | c#,python,excel | 1,640,928 | 10 | false | 0 | 0 | The answer probably has more to do with the circumstances than the question of which is the better language for the task at hand.
If you have no prior C# experience, it's probably not a good idea to jump into it now and learn it as you go along. Syntax differences are trivial to learn, mastery is defined by knowing the... | 5 | 3 | 0 | I have the task of developing an application to pull data from remote REST services and generating Excel reports. This application will be used by a handful of users at the company (10-15). The data load can reach 10,000-200,000 records. I have been debating whether to use Python or C#...
The only reason I am consideri... | C# or Python for my app | 0 | 0 | 0 | 1,737 |
1,640,080 | 2009-10-28T20:57:00.000 | 5 | 0 | 1 | 0 | c#,python,excel | 1,640,096 | 10 | false | 0 | 0 | If you want to learn C# and you don't have such a limited time constraint, now might be a good time to try it. Also, though I haven't done Excel work with either Python or C#, I would expect it to be easier to work with Excel files with a Microsoft product rather than Python. If you're just dumping data in CSV format... | 5 | 3 | 0 | I have the task of developing an application to pull data from remote REST services and generating Excel reports. This application will be used by a handful of users at the company (10-15). The data load can reach 10,000-200,000 records. I have been debating whether to use Python or C#...
The only reason I am consideri... | C# or Python for my app | 0.099668 | 0 | 0 | 1,737 |
1,640,080 | 2009-10-28T20:57:00.000 | 0 | 0 | 1 | 0 | c#,python,excel | 1,640,094 | 10 | false | 0 | 0 | If the users have to install a C# client then not having .NET installed would be an issue. You can package the installer so it downloads the .NET runtime, but depending on what features you use it could be quite a big download.
If your application is web based then all the C# code runs on the server and just delivers H... | 5 | 3 | 0 | I have the task of developing an application to pull data from remote REST services and generating Excel reports. This application will be used by a handful of users at the company (10-15). The data load can reach 10,000-200,000 records. I have been debating whether to use Python or C#...
The only reason I am consideri... | C# or Python for my app | 0 | 0 | 0 | 1,737 |
1,640,080 | 2009-10-28T20:57:00.000 | 0 | 0 | 1 | 0 | c#,python,excel | 1,640,232 | 10 | false | 0 | 0 | If you do a web based application not having installed .NET in the client machine wont be a problem .. but I suppose you dont want to try both C# and web development at the same time | 5 | 3 | 0 | I have the task of developing an application to pull data from remote REST services and generating Excel reports. This application will be used by a handful of users at the company (10-15). The data load can reach 10,000-200,000 records. I have been debating whether to use Python or C#...
The only reason I am consideri... | C# or Python for my app | 0 | 0 | 0 | 1,737 |
1,640,080 | 2009-10-28T20:57:00.000 | 0 | 0 | 1 | 0 | c#,python,excel | 1,640,103 | 10 | false | 0 | 0 | Integration with Excel will almost certainly be simpler from C#. Given the requirements "Windows only" and "Integrates with Excel", it would seem a simple choice that C# is better suited to this individual problem.
And, no, users' not having .NET is not a concern compared with Python as the alternative. The Dot Net fra... | 5 | 3 | 0 | I have the task of developing an application to pull data from remote REST services and generating Excel reports. This application will be used by a handful of users at the company (10-15). The data load can reach 10,000-200,000 records. I have been debating whether to use Python or C#...
The only reason I am consideri... | C# or Python for my app | 0 | 0 | 0 | 1,737 |
1,640,112 | 2009-10-28T21:06:00.000 | 0 | 0 | 1 | 0 | python,multithreading,queue | 1,642,871 | 3 | false | 0 | 0 | If the rate of input is fast enough, you can always buffer bytes up into a string before pushing that onto the Queue. That will probably increase throughput by reducing the amount of locking done, at the expense of a little extra latency on the receiving end. | 3 | 3 | 0 | I have a simple thread that grabs bytes from a Bluetooth RFCOMM (serial-port-like) socket and dumps them into a Queue.Queue (FIFO), which seems like the typical method to exchange data between threads. Works fine.
Is this overkill though? Could I just use a bytearray then have my reader thread .append(somebyte) and t... | Is a Python Queue needed for simple byte stream between threads? | 0 | 0 | 0 | 2,431 |
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