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2,979,697 | 2010-06-05T08:31:00.000 | 0 | 0 | 0 | 0 | python,geometry,tkinter | 2,979,707 | 4 | false | 0 | 1 | One approach is to go through your points and partition them into sets with a "center". Since you have 5 colours, you'll have 5 sets. You compare the distance of the new point from each of the centers and then put it in the same group as the closest one.
Each set corresponds to a different colour so you can just plot i... | 2 | 4 | 0 | I have a dense set of points in the plane. I want them colored so that points that are close to each other have the same color, and a different color if they're far away. For simplicity assume that there are, say, 5 different colors to choose from. Turns out I've not the slightest idea how to do that ..
I'm using Tkint... | Coloring close points | 0 | 0 | 0 | 270 |
2,980,257 | 2010-06-05T12:08:00.000 | 1 | 0 | 0 | 0 | python,database,sqlite,dictionary,csv | 2,980,269 | 1 | true | 0 | 0 | As long as they will all fit in memory, a dict will be the most efficient solution. It's also a lot easier to code. 100k records should be no problem on a modern computer.
You are right that switching to an SQLite database is a good choice when the number of records gets very large. | 1 | 3 | 1 | I am writing an app to do a file conversion and part of that is replacing old account numbers with a new account numbers.
Right now I have a CSV file mapping the old and new account numbers with around 30K records. I read this in and store it as dict and when writing the new file grab the new account from the dict by k... | Efficient way to access a mapping of identifiers in Python | 1.2 | 1 | 0 | 109 |
2,982,708 | 2010-06-06T00:52:00.000 | 1 | 0 | 0 | 0 | python,django,admin | 2,982,717 | 1 | false | 1 | 0 | Not reliably. What will happen if multiple people access it at the same time is that data will be overwritten. Let the PK serve its purpose, behind the scenes. | 1 | 1 | 0 | When adding a new data, can we automatically add a dynamic default data where the value is previous recorded data(0002)+1=0003 | Django admin add page, how to, autofill with latest data(0002)+1=0003 | 0.197375 | 0 | 0 | 165 |
2,982,829 | 2010-06-06T01:54:00.000 | 5 | 0 | 1 | 1 | python,assembly | 2,982,842 | 13 | false | 0 | 0 | I don't think writing it in assembly will help you. Writing a routine in assembly could help you if you are processor-bound and think you can do something smarter than your compiler. But in a network copy, you will be IO bound, so shaving a cycle here or there almost certainly will not make a difference.
I think the ... | 9 | 18 | 0 | As a maintenance issue I need to routinely (3-5 times per year) copy a repository that is now has over 20 million files and exceeds 1.5 terabytes in total disk space. I am currently using RICHCOPY, but have tried others. RICHCOPY seems the fastest but I do not believe I am getting close to the limits of the capabilit... | Should I use Python or Assembly for a super fast copy program | 0.076772 | 0 | 0 | 3,559 |
2,982,829 | 2010-06-06T01:54:00.000 | 4 | 0 | 1 | 1 | python,assembly | 2,982,838 | 13 | false | 0 | 0 | I don't believe it will make a discernable difference which language you use for this purpose. The bottleneck here is not your application but the disk performance.
Just because a language is interpreted, it doesn't mean that every single operation in it is slow. As an example, it's a fairly safe bet that the lower-lev... | 9 | 18 | 0 | As a maintenance issue I need to routinely (3-5 times per year) copy a repository that is now has over 20 million files and exceeds 1.5 terabytes in total disk space. I am currently using RICHCOPY, but have tried others. RICHCOPY seems the fastest but I do not believe I am getting close to the limits of the capabilit... | Should I use Python or Assembly for a super fast copy program | 0.061461 | 0 | 0 | 3,559 |
2,982,829 | 2010-06-06T01:54:00.000 | 1 | 0 | 1 | 1 | python,assembly | 2,982,852 | 13 | false | 0 | 0 | Right, here the bottleneck is not in the execution of the copying software itself but rather the disk access.
Going lower level does not mean that you will have better performance. Take a simple example of open() and fopen() APIs where open is much lower level is is more direct and fopen() is a library wrapper for the ... | 9 | 18 | 0 | As a maintenance issue I need to routinely (3-5 times per year) copy a repository that is now has over 20 million files and exceeds 1.5 terabytes in total disk space. I am currently using RICHCOPY, but have tried others. RICHCOPY seems the fastest but I do not believe I am getting close to the limits of the capabilit... | Should I use Python or Assembly for a super fast copy program | 0.015383 | 0 | 0 | 3,559 |
2,982,829 | 2010-06-06T01:54:00.000 | 2 | 0 | 1 | 1 | python,assembly | 2,982,870 | 13 | false | 0 | 0 | Before you question the copying app, you should most likely question the data path. What are the theoretical limits and what are you achieving? What are the potential bottlenecks? If there is a single data path, you are probably not going to get a significant boost by parallelizing storage tasks. You may even exace... | 9 | 18 | 0 | As a maintenance issue I need to routinely (3-5 times per year) copy a repository that is now has over 20 million files and exceeds 1.5 terabytes in total disk space. I am currently using RICHCOPY, but have tried others. RICHCOPY seems the fastest but I do not believe I am getting close to the limits of the capabilit... | Should I use Python or Assembly for a super fast copy program | 0.03076 | 0 | 0 | 3,559 |
2,982,829 | 2010-06-06T01:54:00.000 | 42 | 0 | 1 | 1 | python,assembly | 2,982,837 | 13 | false | 0 | 0 | Copying files is an I/O bound process. It is unlikely that you will see any speed up from rewriting it in assembly, and even multithreading may just cause things to go slower as different threads requesting different files at the same time will result in more disk seeks.
Using a standard tool is probably the best way t... | 9 | 18 | 0 | As a maintenance issue I need to routinely (3-5 times per year) copy a repository that is now has over 20 million files and exceeds 1.5 terabytes in total disk space. I am currently using RICHCOPY, but have tried others. RICHCOPY seems the fastest but I do not believe I am getting close to the limits of the capabilit... | Should I use Python or Assembly for a super fast copy program | 1 | 0 | 0 | 3,559 |
2,982,829 | 2010-06-06T01:54:00.000 | 8 | 0 | 1 | 1 | python,assembly | 2,982,847 | 13 | false | 0 | 0 | There are 2 places for slowdown:
Per-file copy is MUCH slower than a disk copy (where you literally clone 100% of each sector's data). Especially for 20mm files. You can't fix that one with the most tuned assembly, unless you switch from cloning files to cloning raw disk data. In the latter case, yes, Assembly is inde... | 9 | 18 | 0 | As a maintenance issue I need to routinely (3-5 times per year) copy a repository that is now has over 20 million files and exceeds 1.5 terabytes in total disk space. I am currently using RICHCOPY, but have tried others. RICHCOPY seems the fastest but I do not believe I am getting close to the limits of the capabilit... | Should I use Python or Assembly for a super fast copy program | 1 | 0 | 0 | 3,559 |
2,982,829 | 2010-06-06T01:54:00.000 | 1 | 0 | 1 | 1 | python,assembly | 2,982,913 | 13 | false | 0 | 0 | 1,5 TB in approximately 50 hours gives a throughput of (1,5 * 1024^2) MB / (50 * 60^2) s = 8,7 MB/s. A theoretical 100 mbit/s bandwidth should give you 12,5 MB/s. It seems to me that your firewire connection is a problem. You should look at upgrading drivers, or upgrading to a better firewire/esata/usb interface.
That... | 9 | 18 | 0 | As a maintenance issue I need to routinely (3-5 times per year) copy a repository that is now has over 20 million files and exceeds 1.5 terabytes in total disk space. I am currently using RICHCOPY, but have tried others. RICHCOPY seems the fastest but I do not believe I am getting close to the limits of the capabilit... | Should I use Python or Assembly for a super fast copy program | 0.015383 | 0 | 0 | 3,559 |
2,982,829 | 2010-06-06T01:54:00.000 | 0 | 0 | 1 | 1 | python,assembly | 2,983,371 | 13 | false | 0 | 0 | As already said, it is not the language here to make the difference; assembly could be cool or fast for computations, but when the processor have to "speak" to peripherals, the limit is given by these. In this case the speed is given by your hard disk speed, and this is a limit you hardly can change wiithout changing y... | 9 | 18 | 0 | As a maintenance issue I need to routinely (3-5 times per year) copy a repository that is now has over 20 million files and exceeds 1.5 terabytes in total disk space. I am currently using RICHCOPY, but have tried others. RICHCOPY seems the fastest but I do not believe I am getting close to the limits of the capabilit... | Should I use Python or Assembly for a super fast copy program | 0 | 0 | 0 | 3,559 |
2,982,829 | 2010-06-06T01:54:00.000 | 0 | 0 | 1 | 1 | python,assembly | 3,181,017 | 13 | false | 0 | 0 | Neither. If you want to take advantage of OS features to speed up I/O, you'll need to use some specialized system calls that are most easily accessed in C (or C++). You don't need to know a lot of C to write such a program, but you really need to know the system call interfaces.
In all likelihood, you can solve the p... | 9 | 18 | 0 | As a maintenance issue I need to routinely (3-5 times per year) copy a repository that is now has over 20 million files and exceeds 1.5 terabytes in total disk space. I am currently using RICHCOPY, but have tried others. RICHCOPY seems the fastest but I do not believe I am getting close to the limits of the capabilit... | Should I use Python or Assembly for a super fast copy program | 0 | 0 | 0 | 3,559 |
2,982,959 | 2010-06-06T03:01:00.000 | 8 | 0 | 0 | 1 | python,debugging,google-app-engine | 17,550,812 | 4 | false | 1 | 0 | In case someone is using the Windows Google Application Launcher. The argument for debug can be set under Edit > Application Settings
In the Extra Command Line Flags, add --log_level=debug | 2 | 25 | 0 | I'm just getting started on building a Python app for Google App Engine. In the localhost environment (on a Mac)
I'm trying to send debug info to the GoogleAppEngineLauncher Log Console via logging.debug(), but it isn't showing up. However, anything sent through, say, logging.info() or logging.error() does show up. ... | Getting logging.debug() to work on Google App Engine/Python | 1 | 0 | 0 | 7,359 |
2,982,959 | 2010-06-06T03:01:00.000 | 1 | 0 | 0 | 1 | python,debugging,google-app-engine | 27,547,085 | 4 | false | 1 | 0 | On a Mac:
1) click Edit > Application Settings
2) then copy and paste the following line into the "Extra Flags:" field
--log_level=debug
3) click Update
your debug logs will now show up in the Log Console | 2 | 25 | 0 | I'm just getting started on building a Python app for Google App Engine. In the localhost environment (on a Mac)
I'm trying to send debug info to the GoogleAppEngineLauncher Log Console via logging.debug(), but it isn't showing up. However, anything sent through, say, logging.info() or logging.error() does show up. ... | Getting logging.debug() to work on Google App Engine/Python | 0.049958 | 0 | 0 | 7,359 |
2,983,649 | 2010-06-06T09:03:00.000 | 1 | 0 | 1 | 0 | python,static-libraries,ctypes | 2,983,728 | 2 | false | 0 | 1 | I can't say for sure there are no modules out there, but the advantages of dynamic libraries (uses less space, can update without recompiling dependent programs) are such that you're probably better off doing just that. | 1 | 16 | 0 | I'm attempting to write a Python wrapper for poker-eval, a c static library. All the documentation I can find on ctypes indicates that it works on shared/dynamic libraries. Is there a ctypes for static libraries?
I know about cython, but should I use that or recompile the poker-eval into a dynamic library so that I can... | ctypes for static libraries? | 0.099668 | 0 | 0 | 12,127 |
2,983,963 | 2010-06-06T11:09:00.000 | 1 | 0 | 1 | 0 | python,multithreading,subprocess | 2,984,037 | 4 | false | 0 | 0 | A nasty hack on linux is to use the timeout program to run the command. You may opt for a nicer all Python solution, however. | 1 | 4 | 0 | I want to execute an external program in each thread of a multi-threaded python program.
Let's say max running time is set to 1 second. If started process completes within 1 second, main program capture its output for further processing. If it doesn't finishes in 1 second, main program just terminate it and start anoth... | Run a external program with specified max running time | 0.049958 | 0 | 0 | 1,440 |
2,984,460 | 2010-06-06T14:09:00.000 | 5 | 0 | 1 | 0 | python,oop,functional-programming | 2,984,604 | 6 | false | 0 | 0 | Most answers on StackOverflow are short, concise answers, and the functional aspects of python make writing that kind of answers easy.
Python's OO-features simply aren't needed in 10-20 line answers, so you don't see them around here as much. | 5 | 37 | 0 | I see what seems like a majority of Python developers on StackOverflow endorsing the use of concise functional tools like lambdas, maps, filters, etc., while others say their code is clearer and more maintainable by not using them. What is your preference?
Also, if you are a die-hard functional programmer or hardcore ... | Do you use Python mostly for its functional or object-oriented features? | 0.16514 | 0 | 0 | 31,150 |
2,984,460 | 2010-06-06T14:09:00.000 | 1 | 0 | 1 | 0 | python,oop,functional-programming | 2,984,508 | 6 | false | 0 | 0 | I select Python when I'm taking on a problem that maps well to an OO solution. Python only provides a limited ability to program in a functional manner compared to full blown functional languages.
If I really want functional programming, I use Lisp. | 5 | 37 | 0 | I see what seems like a majority of Python developers on StackOverflow endorsing the use of concise functional tools like lambdas, maps, filters, etc., while others say their code is clearer and more maintainable by not using them. What is your preference?
Also, if you are a die-hard functional programmer or hardcore ... | Do you use Python mostly for its functional or object-oriented features? | 0.033321 | 0 | 0 | 31,150 |
2,984,460 | 2010-06-06T14:09:00.000 | 25 | 0 | 1 | 0 | python,oop,functional-programming | 2,984,471 | 6 | false | 0 | 0 | I use the features of the language that get the job done with the shortest, cleanest code possible. If that means that I have to mix the two, which I do quite often, then that's what gets done. | 5 | 37 | 0 | I see what seems like a majority of Python developers on StackOverflow endorsing the use of concise functional tools like lambdas, maps, filters, etc., while others say their code is clearer and more maintainable by not using them. What is your preference?
Also, if you are a die-hard functional programmer or hardcore ... | Do you use Python mostly for its functional or object-oriented features? | 1 | 0 | 0 | 31,150 |
2,984,460 | 2010-06-06T14:09:00.000 | 6 | 0 | 1 | 0 | python,oop,functional-programming | 2,984,486 | 6 | false | 0 | 0 | Python has only marginal functional programming features so I would be surprised if many people would use it especially for that. For example there is no standard way to do function composition and the standard library's reduce() has been deprecated in favor of explicit loops.
Also, I don't think that map() or filter()... | 5 | 37 | 0 | I see what seems like a majority of Python developers on StackOverflow endorsing the use of concise functional tools like lambdas, maps, filters, etc., while others say their code is clearer and more maintainable by not using them. What is your preference?
Also, if you are a die-hard functional programmer or hardcore ... | Do you use Python mostly for its functional or object-oriented features? | 1 | 0 | 0 | 31,150 |
2,984,460 | 2010-06-06T14:09:00.000 | 10 | 0 | 1 | 0 | python,oop,functional-programming | 2,984,618 | 6 | false | 0 | 0 | I am both a die-hard OOP and functional programmer and these styles work very well together, mostly because they are completely orthogonal. There are plenty of object-oriented, functional languages and Python is one of them.
So basically, decomposing a application into classes is very helpful when designing a system. W... | 5 | 37 | 0 | I see what seems like a majority of Python developers on StackOverflow endorsing the use of concise functional tools like lambdas, maps, filters, etc., while others say their code is clearer and more maintainable by not using them. What is your preference?
Also, if you are a die-hard functional programmer or hardcore ... | Do you use Python mostly for its functional or object-oriented features? | 1 | 0 | 0 | 31,150 |
2,984,888 | 2010-06-06T16:16:00.000 | -1 | 0 | 0 | 0 | python,csv | 2,985,662 | 5 | false | 0 | 0 | Try parsing it as CSV and see if you get an error. | 2 | 34 | 0 | Could someone provide an effective way to check if a file has CSV format using Python ? | Check if file has a CSV format with Python | -0.039979 | 0 | 0 | 32,667 |
2,984,888 | 2010-06-06T16:16:00.000 | -2 | 0 | 0 | 0 | python,csv | 2,984,979 | 5 | false | 0 | 0 | You need to think clearly on what you consider a CSV file to be.
For example, what sort of characters can occur between the commas. Is it text-only? Can it be Unicode characters as well? Should every line have the same number of commas?
There is no strict definition of a CSV file that I'm aware of. Usually it's ASCII t... | 2 | 34 | 0 | Could someone provide an effective way to check if a file has CSV format using Python ? | Check if file has a CSV format with Python | -0.07983 | 0 | 0 | 32,667 |
2,985,426 | 2010-06-06T18:44:00.000 | 4 | 1 | 0 | 1 | java,python,ubuntu,debian,operating-system | 2,985,450 | 6 | false | 0 | 0 | Both use Debian packages and Ubuntu is based on Debian but is more user friendly. Everything yo can do on one you can do on the other. I'd recommend Ubuntu if your new to linux on a Desktop. Though when it comes to servers I'd recommend Debian as it has less stuff "taken out" basically. | 5 | 10 | 0 | Are there any real differences between them?
I want to program in java and python. And of corse be a normal user: internet, etc
Which one will give me less headaches/more satisfaction ?
And which is better for a server machine ?
Thank you | Which os is better for development : Debian or Ubuntu? | 0.132549 | 0 | 0 | 20,812 |
2,985,426 | 2010-06-06T18:44:00.000 | 1 | 1 | 0 | 1 | java,python,ubuntu,debian,operating-system | 2,985,456 | 6 | false | 0 | 0 | In Ubuntu it is a bit easier to install packages for Java development, but it doesn't really matter that much. Remember that Ubuntu is based on Debian, so it works the same. Ubuntu just adds more user-friendly GUI's. | 5 | 10 | 0 | Are there any real differences between them?
I want to program in java and python. And of corse be a normal user: internet, etc
Which one will give me less headaches/more satisfaction ?
And which is better for a server machine ?
Thank you | Which os is better for development : Debian or Ubuntu? | 0.033321 | 0 | 0 | 20,812 |
2,985,426 | 2010-06-06T18:44:00.000 | 2 | 1 | 0 | 1 | java,python,ubuntu,debian,operating-system | 2,985,463 | 6 | false | 0 | 0 | Ubuntu is the more user-friendly of the two (I think Ubuntu is actually one of the most newbie-friendly Linux distros), so if you are new to Linux, Ubuntu is the way to go. Otherwise, the packages are mostly the same except for branding, so it's pretty much your choice. | 5 | 10 | 0 | Are there any real differences between them?
I want to program in java and python. And of corse be a normal user: internet, etc
Which one will give me less headaches/more satisfaction ?
And which is better for a server machine ?
Thank you | Which os is better for development : Debian or Ubuntu? | 0.066568 | 0 | 0 | 20,812 |
2,985,426 | 2010-06-06T18:44:00.000 | 1 | 1 | 0 | 1 | java,python,ubuntu,debian,operating-system | 2,985,472 | 6 | false | 0 | 0 | Neither is better. They both support the same tools and libraries. They are both linux. Anything and everything you can do on one you can do on the other. | 5 | 10 | 0 | Are there any real differences between them?
I want to program in java and python. And of corse be a normal user: internet, etc
Which one will give me less headaches/more satisfaction ?
And which is better for a server machine ?
Thank you | Which os is better for development : Debian or Ubuntu? | 0.033321 | 0 | 0 | 20,812 |
2,985,426 | 2010-06-06T18:44:00.000 | 2 | 1 | 0 | 1 | java,python,ubuntu,debian,operating-system | 2,985,442 | 6 | false | 0 | 0 | java and python would most likely run the same on both.
With Ubuntu you get additional space of support and active community, and perhaps larger user base.
So if and when you face a particular problem, chances are with Ubuntu, the solution will appear faster.
(although, whatever works on this should work on the other... | 5 | 10 | 0 | Are there any real differences between them?
I want to program in java and python. And of corse be a normal user: internet, etc
Which one will give me less headaches/more satisfaction ?
And which is better for a server machine ?
Thank you | Which os is better for development : Debian or Ubuntu? | 0.066568 | 0 | 0 | 20,812 |
2,985,678 | 2010-06-06T19:53:00.000 | 1 | 0 | 1 | 0 | python,xlwt,pyexcelerator | 2,985,689 | 4 | false | 0 | 0 | The 00.0% number format expects percentages, so multiplying by 100 to display it is the correct behavior. To get the results you want, you could either put the data in the cell as a string in whatever format you choose or you could divide by 100.0 before you store the value in the cell. | 2 | 2 | 0 | just a quick question, how to add percent sign to numbers without modifying number. I have tried format percent with myStyleFont.num_format_str = '0.00%' but it multiplies with 100 but I need just to append percent.
Ty in advance.
Regards. | Adding percentage in python - xlwt / pyexcelerator | 0.049958 | 0 | 0 | 5,708 |
2,985,678 | 2010-06-06T19:53:00.000 | 5 | 0 | 1 | 0 | python,xlwt,pyexcelerator | 2,986,184 | 4 | true | 0 | 0 | Note carefully: "modifying" and "multiplies with 100" affect the displayed result, they affect neither the value stored in the file nor the value used in formula calculations.
The technique of making an operator be treated as a literal is known as "escaping".
The escape character in Excel number format strings is the ... | 2 | 2 | 0 | just a quick question, how to add percent sign to numbers without modifying number. I have tried format percent with myStyleFont.num_format_str = '0.00%' but it multiplies with 100 but I need just to append percent.
Ty in advance.
Regards. | Adding percentage in python - xlwt / pyexcelerator | 1.2 | 0 | 0 | 5,708 |
2,985,725 | 2010-06-06T20:08:00.000 | 4 | 0 | 1 | 0 | python,file,python-3.x | 2,985,733 | 3 | false | 0 | 0 | The problem is that since your lines are not of fixed length, you have to pay attention to line end markers to do your seeking, and that effectively becomes "traversing the file line by line". Thus, any viable approach is still going to be traversing the file, it's merely a matter of what can traverse it fastest. | 2 | 10 | 0 | Let's say that I routinely have to work with files with an unknown, but large, number of lines. Each line contains a set of integers (space, comma, semicolon, or some non-numeric character is the delimiter) in the closed interval [0, R], where R can be arbitrarily large. The number of integers on each line can be varia... | Moving to an arbitrary position in a file in Python | 0.26052 | 0 | 0 | 4,225 |
2,985,725 | 2010-06-06T20:08:00.000 | 0 | 0 | 1 | 0 | python,file,python-3.x | 2,986,055 | 3 | false | 0 | 0 | Another solution, if the file is potentially going to change a lot, is to go full-way to a proper database. The database engine will create and maintain the indexes for you so you can do very fast searches/queries.
This may be an overkill though. | 2 | 10 | 0 | Let's say that I routinely have to work with files with an unknown, but large, number of lines. Each line contains a set of integers (space, comma, semicolon, or some non-numeric character is the delimiter) in the closed interval [0, R], where R can be arbitrarily large. The number of integers on each line can be varia... | Moving to an arbitrary position in a file in Python | 0 | 0 | 0 | 4,225 |
2,986,317 | 2010-06-06T23:14:00.000 | 1 | 0 | 0 | 0 | python,authentication,rest | 2,986,411 | 3 | false | 1 | 0 | Assuming you plan to write your own auth client code, it isn't event-driven, and you don't need to validate an https certificate, I would suggest using python's built-in urllib2 to call the auth server. This will minimize dependencies, which ought to make deployment and upgrades easier.
That being said, there are more... | 2 | 0 | 0 | I'm building my startup and I'm thinking ahead for shared use of services.
So far I want to allow people who have a user account on one app to be able to use the same user account on another app. This means I will have to build an authentication server.
I would like some opinions on how to allow an app to talk to the a... | Talking to an Authentication Server | 0.066568 | 0 | 1 | 308 |
2,986,317 | 2010-06-06T23:14:00.000 | 0 | 0 | 0 | 0 | python,authentication,rest | 2,986,610 | 3 | false | 1 | 0 | Your question isn't really a programming problem so much as it is an architecture problem. What I would recommend for your specific situation is to setup an LDAP server for authentication, authorization, and accounting (AAA). Then have your applications use that (every language has modules and libraries for LDAP). I... | 2 | 0 | 0 | I'm building my startup and I'm thinking ahead for shared use of services.
So far I want to allow people who have a user account on one app to be able to use the same user account on another app. This means I will have to build an authentication server.
I would like some opinions on how to allow an app to talk to the a... | Talking to an Authentication Server | 0 | 0 | 1 | 308 |
2,986,357 | 2010-06-06T23:32:00.000 | 1 | 1 | 1 | 1 | python,version-control,module,easy-install | 2,986,445 | 4 | false | 0 | 0 | Packages installed by easy_install tend to come from snapshots of the developer's version control, generally made when the developer releases an official version. You're therefore going to have to choose between convenient automatic downloads via easy_install and up-to-the-minute code updates via version control. If ... | 1 | 5 | 0 | I'm newish to the python ecosystem, and have a question about module editing.
I use a bunch of third-party modules, distributed on PyPi. Coming from a C and Java background, I love the ease of easy_install <whatever>. This is a new, wonderful world, but the model breaks down when I want to edit the newly installed m... | Best practice for installing python modules from an arbitrary VCS repository | 0.049958 | 0 | 0 | 1,655 |
2,986,419 | 2010-06-06T23:53:00.000 | 4 | 0 | 1 | 0 | python,python-module | 2,986,469 | 2 | false | 0 | 0 | You can also run the interpreter with -v option if you just want to see the modules that are imported (and the order they are imported in) | 1 | 3 | 0 | How can I get a list of the modules that have been imported into my process? | Python: what modules have been imported in my process? | 0.379949 | 0 | 0 | 741 |
2,986,659 | 2010-06-07T01:44:00.000 | 8 | 0 | 0 | 0 | python,django | 2,987,352 | 3 | true | 1 | 0 | First, large files are pretty common in python. Python is not java, which has one class per file, rather one module per file.
Next, views, even as the standard used, is a python module. A module need not be a single file. It can be a directory containing many files, and __init__.py
And then, views.py is only a conventi... | 2 | 6 | 0 | I have been reading some django tutorial and it seems like all the view functions have to go in a file called "views.py" and all the models go in "models.py". I fear that I might end up with a lot of view functions in my view.py file and the same is the case with models.py.
Is my understanding of django apps correct?
... | django app organization | 1.2 | 0 | 0 | 1,802 |
2,986,659 | 2010-06-07T01:44:00.000 | 1 | 0 | 0 | 0 | python,django | 2,986,813 | 3 | false | 1 | 0 | They don't have to go in views.py. They have to be referenced there.
views.py can include other files. So, if you feel the need, you can create other files in one app that contain your view functions and just include them in views.py.
The same applies to models.py.
Django apps lets us separate common
functionality i... | 2 | 6 | 0 | I have been reading some django tutorial and it seems like all the view functions have to go in a file called "views.py" and all the models go in "models.py". I fear that I might end up with a lot of view functions in my view.py file and the same is the case with models.py.
Is my understanding of django apps correct?
... | django app organization | 0.066568 | 0 | 0 | 1,802 |
2,986,766 | 2010-06-07T02:24:00.000 | 1 | 0 | 0 | 1 | python,google-app-engine,openid,integration | 2,988,807 | 1 | false | 1 | 0 | I understand your question.
You wish to be able to maintain a list of users that have signed up with your service, and also want to record users using OpenID to authenticate.
In order to solve this I would do either of the following:
Create a new user in your users table for each new user logged in under OpenID, and s... | 1 | 0 | 0 | how to integration local user and openid(or facebook twitter) user ,
did you know some framework have already done this ,
updated
my mean is : how to deal with 'local user' and 'openid user',
and how to mix them in one model .
please give me a framework that realize 'local user' and 'openid user' | what should i do after openid (or twitter ,facebook) user login my site ,on gae | 0.197375 | 0 | 0 | 264 |
2,987,168 | 2010-06-07T05:04:00.000 | 0 | 1 | 0 | 1 | python,linux,sockets,port | 42,511,544 | 5 | false | 0 | 0 | One thing that wasn't mentioned. Most port applications in python take a command line argument. You can parse /proc/pid/cmdline and parse out the port number. This avoids the large overhead of using ss or netstat on servers with a ton of connections. | 3 | 23 | 0 | How do I get the ports that a process is listening on using python? The pid of the process is known. | How to obtain ports that a process in listening on? | 0 | 0 | 0 | 21,117 |
2,987,168 | 2010-06-07T05:04:00.000 | 1 | 1 | 0 | 1 | python,linux,sockets,port | 2,987,231 | 5 | false | 0 | 0 | You can use netstat -lnp, last column will contain pid and process name. In Python you can parse output of this command. | 3 | 23 | 0 | How do I get the ports that a process is listening on using python? The pid of the process is known. | How to obtain ports that a process in listening on? | 0.039979 | 0 | 0 | 21,117 |
2,987,168 | 2010-06-07T05:04:00.000 | 4 | 1 | 0 | 1 | python,linux,sockets,port | 2,987,379 | 5 | false | 0 | 0 | If you don't want to parse the output of a program like netstat or lsof, you can grovel through the /proc filesystem and try to find documentation on the files within. /proc/<pid>/net/tcp might be especially interesting to you. Of course, the format of those files might change between kernel releases, so parsing comm... | 3 | 23 | 0 | How do I get the ports that a process is listening on using python? The pid of the process is known. | How to obtain ports that a process in listening on? | 0.158649 | 0 | 0 | 21,117 |
2,987,429 | 2010-06-07T06:18:00.000 | 0 | 0 | 0 | 0 | python,google-app-engine,thread-safety | 2,989,839 | 4 | false | 1 | 0 | memcache is 'just' a cache, and in its usual guise it's not suitable for an atomic data store, which is what you're trying to use it for. I'd suggest using the GAE datastore instead, which is designed for this sort of issue. | 1 | 0 | 0 | This code should automatically connect players when they enter a game.
But the problem is when two users try to connect at the same time - in this case 2nd user can easily overwrite changes made by 1st user ('room_1' variable).
How could I make it thread safe?
def join(userId):
users = memcache.get('room_1')
... | Read -> change -> save. Thread safe | 0 | 0 | 0 | 249 |
2,987,980 | 2010-06-07T08:22:00.000 | 2 | 1 | 1 | 0 | python,multithreading,parallel-processing,message-passing | 2,988,386 | 5 | false | 0 | 0 | Depending on how much data you need to process and how many CPUs/machines you intend to use, it is in some cases better to write a part of it in C (or Java/C# if you want to use jython/IronPython)
The speedup you can get from that might do more for your performance than running things in parallel on 8 CPUs. | 1 | 26 | 0 | What are the options for achieving parallelism in Python? I want to perform a bunch of CPU bound calculations over some very large rasters, and would like to parallelise them. Coming from a C background, I am familiar with three approaches to parallelism:
Message passing processes, possibly distributed across a clus... | Parallelism in Python | 0.07983 | 0 | 0 | 14,722 |
2,988,211 | 2010-06-07T09:11:00.000 | 1 | 0 | 1 | 0 | python,file-io,character | 2,988,272 | 14 | false | 0 | 0 | You should try f.read(1), which is definitely correct and the right thing to do. | 1 | 90 | 0 | Can anyone tell me how can I do this? | How to read a single character at a time from a file in Python? | 0.014285 | 0 | 0 | 190,751 |
2,988,636 | 2010-06-07T10:20:00.000 | 4 | 0 | 0 | 0 | python,cherrypy | 2,989,432 | 1 | true | 0 | 0 | I got it figured out:
cherrypy.engine.start(); cherrypy.server.wait()
it's the way to go.
Otherwise, I think you can get away with some tricks with
cherrypy.server.bus.states | 1 | 4 | 0 | I am trying to write some unit tests for a small web service written with Cherrypy and I am wondering what's the best way to figure out that the server has started, so i don't get connection refused if I try to connect too early to the service ? | cherrypy when to know that the server has started | 1.2 | 0 | 1 | 250 |
2,989,388 | 2010-06-07T12:23:00.000 | 1 | 0 | 0 | 1 | python,file-io | 2,989,433 | 2 | false | 0 | 0 | In Linux, you can open a file while another process is writing to it without Python throwing an OSError, so in general, you cannot know for sure whether the other side has finished writing into that file. You can try some hacks, though:
You can check the file size regularly to see whether it increased since the last c... | 1 | 0 | 0 | In Linux, how can we know if a file has completed copying before reading it? In Windows, an OSError is raised. | File copy completion? | 0.099668 | 0 | 0 | 995 |
2,989,398 | 2010-06-07T12:24:00.000 | 2 | 1 | 1 | 0 | python,logging | 3,060,995 | 2 | false | 0 | 0 | Here is my solution that came out of this discussion. Thanks to everyone for suggestions.
Usage:
>>> import logging
>>> logging.basicConfig(level=logging.DEBUG)
>>> from hierlogger import hierlogger as logger
>>> def main():
... logger().debug("test")
...
>>> main()
DEBUG:main:test
By default it will name logger ... | 1 | 6 | 0 | I'm writing python package/module and would like the logging messages mention what module/class/function they come from. I.e. if I run this code:
import mymodule.utils.worker as worker
w = worker.Worker()
w.run()
I'd like to logging messages looks like this:
2010-06-07 15:15:29 INFO mymodule.utils.worker.Worker.run... | logger chain in python | 0.197375 | 0 | 0 | 3,330 |
2,989,823 | 2010-06-07T13:17:00.000 | 0 | 0 | 1 | 0 | python,multiprocessing,file-descriptor | 2,989,840 | 4 | true | 0 | 0 | There isn't a way that I know of to share file descriptors between processes.
If a way exists, it is most likely OS specific.
My guess is that you need to share data on another level. | 1 | 8 | 0 | I am using multiprocessing module, and using pools to start multiple workers. But the file descriptors which are opened at the parent process are closed in the worker processes. I want them to be open..! Is there any way to pass file descriptors to be shared across parent and children? | How to pass file descriptors from parent to child in python? | 1.2 | 0 | 0 | 6,758 |
2,990,301 | 2010-06-07T14:22:00.000 | 0 | 0 | 1 | 0 | python,fastcgi | 2,990,364 | 5 | false | 0 | 0 | When you use a module in Python, it (generally) gets compiled if it hasn't been already. For example, if you have a Django app deployed with just .py files, they'll get compiled (and output as .pyc files) as the modules are imported by the app. | 3 | 0 | 0 | Does python compile down to some byte code or is it rendered on the fly each time like php/asp?
From my readings I read it has its own byte code format, so i figured it was like java/.net where it compiles into a intermediate language/byte code.
so it is more effecient in that respect that php right? | python on the web, does it compile down to bytecode or is it more like php? | 0 | 0 | 0 | 169 |
2,990,301 | 2010-06-07T14:22:00.000 | 1 | 0 | 1 | 0 | python,fastcgi | 2,990,377 | 5 | false | 0 | 0 | Given a language X, and a way the server can be aware of it (a module or whatever) or a proper "intermediate" CGI program mX, this mX can be programmed so that it indeed interprets directly plain text script in X (like php), or bytecode compiled code (originally written in X). So, provided the existance of the proper m... | 3 | 0 | 0 | Does python compile down to some byte code or is it rendered on the fly each time like php/asp?
From my readings I read it has its own byte code format, so i figured it was like java/.net where it compiles into a intermediate language/byte code.
so it is more effecient in that respect that php right? | python on the web, does it compile down to bytecode or is it more like php? | 0.039979 | 0 | 0 | 169 |
2,990,301 | 2010-06-07T14:22:00.000 | 0 | 0 | 1 | 0 | python,fastcgi | 2,990,401 | 5 | false | 0 | 0 | Python modules are 'compiled' to .pyc files when they are imported. This isn't the same as compiling Java or .NET though, what's left has an almost 1-1 correspondence with your source; it means the file doesn't have to be parsed next time, but that's about all.
You can use the compile or compileall modules to pre-comp... | 3 | 0 | 0 | Does python compile down to some byte code or is it rendered on the fly each time like php/asp?
From my readings I read it has its own byte code format, so i figured it was like java/.net where it compiles into a intermediate language/byte code.
so it is more effecient in that respect that php right? | python on the web, does it compile down to bytecode or is it more like php? | 0 | 0 | 0 | 169 |
2,990,995 | 2010-06-07T15:52:00.000 | 3 | 0 | 0 | 0 | python,serialization,pickle,object-persistence | 2,991,030 | 3 | false | 0 | 0 | Pickle (cPickle) can handle any (picklable) Python object. So as long, as you're not trying to pickle thread or filehandle or something like that, you're ok. | 1 | 3 | 1 | I'm doing a project with reasonalby big DataBase. It's not a probper DB file, but a class with format as follows:
DataBase.Nodes.Data=[[] for i in range(1,1000)] f.e. this DataBase is all together something like few thousands rows. Fisrt question - is the way I'm doing efficient, or is it better to use SQL, or any othe... | How to save big "database-like" class in python | 0.197375 | 1 | 0 | 306 |
2,991,554 | 2010-06-07T17:07:00.000 | 2 | 1 | 0 | 0 | c#,java,python | 2,991,586 | 10 | false | 0 | 0 | Java and C# are statically typed languages, while Python is a dynamically typed language. That's a huge difference.
The syntax of Java and C# is similar (but I would not call it "almost identical" as Justin Niessner says). | 9 | 6 | 0 | I know it is a kind of broad question but any answer are appreciated. | How Similar are Java, C#, and Python? | 0.039979 | 0 | 0 | 29,161 |
2,991,554 | 2010-06-07T17:07:00.000 | 7 | 1 | 0 | 0 | c#,java,python | 2,991,562 | 10 | false | 0 | 0 | C# and Java have almost identical syntax and very similar libraries. There are differences that you have to be aware of (Type Erasure in Java, for example).
Python is a completely different animal. It is a dynamic language (where the other two aren't). Python winds up being closer in style to something like Ruby. | 9 | 6 | 0 | I know it is a kind of broad question but any answer are appreciated. | How Similar are Java, C#, and Python? | 1 | 0 | 0 | 29,161 |
2,991,554 | 2010-06-07T17:07:00.000 | 11 | 1 | 0 | 0 | c#,java,python | 2,991,567 | 10 | false | 0 | 0 | Python is a dynamic language where Java and C# are really not. It is totally different than the other two. There are ways to accomplishing things in Python that do not translate well to the others and vice versa.
Java and C# look the same, but they have differences between the two under the sheets. Being an expert i... | 9 | 6 | 0 | I know it is a kind of broad question but any answer are appreciated. | How Similar are Java, C#, and Python? | 1 | 0 | 0 | 29,161 |
2,991,554 | 2010-06-07T17:07:00.000 | -2 | 1 | 0 | 0 | c#,java,python | 2,991,564 | 10 | false | 0 | 0 | They are not similar at ALL. They all take widely different approaches to OOP, syntax, and static/dynamic typing. | 9 | 6 | 0 | I know it is a kind of broad question but any answer are appreciated. | How Similar are Java, C#, and Python? | -0.039979 | 0 | 0 | 29,161 |
2,991,554 | 2010-06-07T17:07:00.000 | 1 | 1 | 0 | 0 | c#,java,python | 2,991,569 | 10 | false | 0 | 0 | Java and c# are pretty similar in terms of syntax and are mostly strongly typed (C# is getting more dynamic with every version), Python is a dynamic language | 9 | 6 | 0 | I know it is a kind of broad question but any answer are appreciated. | How Similar are Java, C#, and Python? | 0.019997 | 0 | 0 | 29,161 |
2,991,554 | 2010-06-07T17:07:00.000 | 1 | 1 | 0 | 0 | c#,java,python | 2,991,581 | 10 | false | 0 | 0 | Java and C# are very similar and are syntactically similar to C/C++. They also use braces to mark code blocks.
Python is completely different. Although imperative like Java and C#, Python uses indentation to define blocks of code.
Java and C# are also compiled languages, whereas Python is interpreted and dynamic.
Pytho... | 9 | 6 | 0 | I know it is a kind of broad question but any answer are appreciated. | How Similar are Java, C#, and Python? | 0.019997 | 0 | 0 | 29,161 |
2,991,554 | 2010-06-07T17:07:00.000 | 1 | 1 | 0 | 0 | c#,java,python | 2,992,318 | 10 | false | 0 | 0 | C# and Java are the two languages you listed that are most similar. Python has a very different syntax, and uses a slightly different programming model. Both C# and Java are Object Oriented languages at their core, with increasing nods to Dynamic Typing. Python began as a Dynamically Typed scripting language and has... | 9 | 6 | 0 | I know it is a kind of broad question but any answer are appreciated. | How Similar are Java, C#, and Python? | 0.019997 | 0 | 0 | 29,161 |
2,991,554 | 2010-06-07T17:07:00.000 | 1 | 1 | 0 | 0 | c#,java,python | 2,991,604 | 10 | false | 0 | 0 | C# and Java are easy to move between, although I don't know many people who are experts in both. C#'s syntax is based off of Java, so they read very, very similarly. They both run cross-platform; Java on the JVM, C# on .NET or Mono. They're both OOP, and widely used for web development. I'd use whichever the team w... | 9 | 6 | 0 | I know it is a kind of broad question but any answer are appreciated. | How Similar are Java, C#, and Python? | 0.019997 | 0 | 0 | 29,161 |
2,991,554 | 2010-06-07T17:07:00.000 | -1 | 1 | 0 | 0 | c#,java,python | 2,991,639 | 10 | false | 0 | 0 | Python was made to be simpler, more readable, flexible and object oriented than what existed before - i.e. Java, Perl etc. It's actually closer to Java than it is to Ruby. Ruby is more like Smalltalk. Think of Python as Java without the stuff that mostly gets in your way, makes things awkward to do, slows you down o... | 9 | 6 | 0 | I know it is a kind of broad question but any answer are appreciated. | How Similar are Java, C#, and Python? | -0.019997 | 0 | 0 | 29,161 |
2,991,852 | 2010-06-07T17:47:00.000 | 1 | 0 | 0 | 0 | python,networking | 2,991,942 | 4 | true | 0 | 0 | Disclaimer: I have little experience with network applications.
That being said, the raw sockets isn't terribly difficult to wrap your head around/use, especially if you're not too worried about optimization. That takes more thought, of course. But using GTK and raw sockets should be fairly straightforward. Especially ... | 2 | 1 | 0 | I'm writing an application that sends files over network, I want to develop a custom protocol to not limit myself in term on feature richness (http wouldn't be appropriate, the nearest thing is the bittorrent protocol maybe).
I've tried with twisted, I've built a good app but there's a bug in twisted that makes my GUI... | networking application and GUI in python | 1.2 | 0 | 1 | 1,158 |
2,991,852 | 2010-06-07T17:47:00.000 | 1 | 0 | 0 | 0 | python,networking | 2,991,935 | 4 | false | 0 | 0 | Two threads: one for the GUI, one for sending/receiving data. Tkinter would be a perfectly fine toolkit for this. You don't need twisted or any other external libraries or toolkits -- what comes out of the box is sufficient to get the job done. | 2 | 1 | 0 | I'm writing an application that sends files over network, I want to develop a custom protocol to not limit myself in term on feature richness (http wouldn't be appropriate, the nearest thing is the bittorrent protocol maybe).
I've tried with twisted, I've built a good app but there's a bug in twisted that makes my GUI... | networking application and GUI in python | 0.049958 | 0 | 1 | 1,158 |
2,991,910 | 2010-06-07T17:58:00.000 | 3 | 0 | 0 | 0 | python,user-interface,portability | 2,991,933 | 2 | false | 0 | 1 | Write a core library that handles the functionality and provides hooks for progress notification. Then write the interfaces as separate applications or libraries that use the core library. | 1 | 2 | 0 | The substance of an app is more important to me than its apperance, yet GUI always seems to dominate a disproportionate percentage of programmer time, development and target resource requirements/constraints.
Ideally I'd like an application architecture that will permit me to develop an app
using a lightweight referen... | How to ignore GUI as much as possible without rendering APP less GUI developer friendly | 0.291313 | 0 | 0 | 141 |
2,992,057 | 2010-06-07T18:22:00.000 | 0 | 0 | 0 | 1 | python,encryption,passwords | 2,992,104 | 4 | false | 0 | 0 | On first i think you can change passwords on md5 of this passwords..
it will give more safety. | 1 | 1 | 0 | Where we work we need to remember about 10 long passwords which need to change every so often. I would like to create a utility which can potentially save these passwords in an encrypted file so that we can keep track of them.
I can think of some sort of dictionary passwd = {'host1':'pass1', 'host2':'pass2'}, etc, but ... | Python-based password tracker (or dictionary) | 0 | 0 | 0 | 313 |
2,993,393 | 2010-06-07T21:43:00.000 | 3 | 1 | 0 | 0 | c++,python,reference,weak | 2,993,422 | 2 | true | 0 | 0 | If you call PyWeakref_GetObject on the weak reference it should return either Py_None or NULL, I forget which. But you should check if it's returning one of those and that will tell you that the referenced object is no longer alive. | 1 | 7 | 0 | I am passing some weakrefs from Python into C++ class, but C++ destructors are actively trying to access the ref when the real object is already dead, obviously it crashes...
Is there any Python C/API approach to find out if Python reference is still alive or any other known workaround for this ?
Thanks | Python - how to check if weak reference is still available | 1.2 | 0 | 0 | 1,004 |
2,993,805 | 2010-06-07T23:09:00.000 | 3 | 0 | 1 | 1 | python,command-line | 2,993,839 | 2 | true | 0 | 0 | Outputting \b will move the output cursor left 1 cell, and outputting \r will return it to column 0. Make sure to flush the output often though. | 1 | 1 | 0 | I am essentially building a timer. I have a python script that monitors for an event and then prints out the seconds that have elapsed since that event.
Instead of an ugly stream of numbers printed to the command line, I would like to display only the current elapsed time "in-place"-- so that only one number is visibl... | Display constantly updating information in-place in command-line window using python? | 1.2 | 0 | 0 | 638 |
2,994,398 | 2010-06-08T02:17:00.000 | 2 | 0 | 0 | 0 | python,image,opencv,identification | 2,994,438 | 1 | true | 0 | 0 | Your question is difficult to answer without more clarification about the types of images you are analyzing and your purpose.
The tone of the post seems that you are interested in tinkering -- that's fine. If you want to tinker, one example application might be iris identification using wavelet analysis. You can also t... | 1 | 1 | 1 | What are some fast and somewhat reliable ways to extract information about images? I've been tinkering with OpenCV and this seems so far to be the best route plus it has Python bindings.
So to be more specific I'd like to determine what I can about what's in an image. So for example the haar face detection and full b... | Extracting Information from Images | 1.2 | 0 | 0 | 1,546 |
2,995,041 | 2010-06-08T05:51:00.000 | 1 | 1 | 1 | 0 | python,plugins,gedit | 2,995,380 | 8 | false | 0 | 0 | What I do is keep a file called python_temp.py. I have a shortcut to it in my dock. I use it as a scratch pad. Whenever I want to quickly run some code, I copy the code, click the shortcut in the doc, paste in the text and hit f5 to run. Quick, easy, simple, flexible. | 3 | 7 | 0 | I'm just starting out learning python with GEdit plus various plugins as my IDE.
Visual Studio/F# has a feature which permits the highlighting on a piece of text in the code window which then, on a keypress, gets executed in the F# console.
Is there a similar facility/plugin which would enable this sort of behaviour ... | GEdit/Python execution plugin? | 0.024995 | 0 | 0 | 23,890 |
2,995,041 | 2010-06-08T05:51:00.000 | 1 | 1 | 1 | 0 | python,plugins,gedit | 18,914,523 | 8 | false | 0 | 0 | The closest to a decent IDE...
Install gedit-developer-plugins (through synaptic || apt-get) and don't forget to enable (what you need) from gEdit's plugins (Edit->Preferences [tab] plugins) and happy coding | 3 | 7 | 0 | I'm just starting out learning python with GEdit plus various plugins as my IDE.
Visual Studio/F# has a feature which permits the highlighting on a piece of text in the code window which then, on a keypress, gets executed in the F# console.
Is there a similar facility/plugin which would enable this sort of behaviour ... | GEdit/Python execution plugin? | 0.024995 | 0 | 0 | 23,890 |
2,995,041 | 2010-06-08T05:51:00.000 | 1 | 1 | 1 | 0 | python,plugins,gedit | 2,995,332 | 8 | false | 0 | 0 | I installed iPython console in gedit and do most of my simple scripting in it, but gedit is a very simple editor, so it'll not have some advance feature like an IDE
But if you want code exploring, or auto completion, I recommend a real IDE like Eclipse.
If you just want a editor, KomodoEdit is fine. | 3 | 7 | 0 | I'm just starting out learning python with GEdit plus various plugins as my IDE.
Visual Studio/F# has a feature which permits the highlighting on a piece of text in the code window which then, on a keypress, gets executed in the F# console.
Is there a similar facility/plugin which would enable this sort of behaviour ... | GEdit/Python execution plugin? | 0.024995 | 0 | 0 | 23,890 |
2,996,110 | 2010-06-08T09:27:00.000 | 31 | 1 | 1 | 0 | python,scripting,module | 2,997,044 | 2 | false | 0 | 0 | Any Python module may be executed as a script. The only significant difference is that when imported as a module the filename is used as the basis for the module name whereas if you execute it as a script the module is named __main__.
This distinction makes it possible to have different behaviour when imported by enclo... | 2 | 51 | 0 | Think the title summarizes the question :-) | What is the difference between a module and a script in Python? | 1 | 0 | 0 | 32,140 |
2,996,110 | 2010-06-08T09:27:00.000 | 62 | 1 | 1 | 0 | python,scripting,module | 2,996,170 | 2 | true | 0 | 0 | A script is generally a directly executable piece of code, run by itself. A module is generally a library, imported by other pieces of code.
Note that there's no internal distinction -- both are executable and importable, although library code often won't do anything (or will just run its unit tests) when executed dir... | 2 | 51 | 0 | Think the title summarizes the question :-) | What is the difference between a module and a script in Python? | 1.2 | 0 | 0 | 32,140 |
2,996,854 | 2010-06-08T11:29:00.000 | 3 | 0 | 0 | 0 | .net,wpf,visual-studio-2010,ironpython | 3,000,618 | 1 | true | 0 | 1 | Currently we don't have support for double clicking and adding an event handler. For the time being you'll need to wire it up by hand. We are going to spend some time on improving the designer experience so that this should eventually work. | 1 | 1 | 0 | I installed VS2010 and IronPython tools. When I start a VB.NET WPFProject everything works fine. But when I start a WPF IronPython project, it creates a button by default which fills all the window, and when you try to add an event to that control or another control dragged from the toolbox, you just cant do it. You do... | Cant add events for controls in WPF IronPython VS2010 | 1.2 | 0 | 0 | 355 |
2,997,697 | 2010-06-08T13:31:00.000 | 1 | 0 | 1 | 0 | python,module,sap-ase | 2,997,750 | 3 | false | 0 | 0 | If you can get Sybase to use a virtual environment (I know nothing about Sybase, sorry), perhaps you could install the module using virtualenv, which generally doesn't require root access or SA approval. | 1 | 3 | 0 | I need to use the Sybase Python module but our SA's won't install because it's not in the repo's. I've downloaded it and placed it on the box and would just like to 'import' or 'include' the module without installing it first. - Is this possible? From the looks of it (Sybase ASE) it needs some type of compilation befor... | Importing Python modules without installing - Sybase ASE | 0.066568 | 0 | 0 | 1,885 |
2,997,764 | 2010-06-08T13:39:00.000 | 0 | 0 | 0 | 0 | python,django | 2,998,022 | 1 | false | 1 | 0 | Within the templates folder, there is should be a 404.html. Remove that, and django defaults to the standard 404 page! | 1 | 0 | 0 | I 'm using django-lfs with default django-app.Its appear django-lfs override 404 default template. How to avoid this process | Avoid 404 page override | 0 | 0 | 0 | 87 |
2,997,869 | 2010-06-08T13:51:00.000 | 0 | 0 | 1 | 0 | python,regex | 2,997,898 | 3 | false | 0 | 0 | You need to escape the + as it has a special meaning in regexp (one or many a's).
search a\+ instead of a+ | 1 | 6 | 0 | This should be easy, but I've managed to stump 2 people so far at work & I've been at it for over 3 hours now, so here goes.
I need to replace a+ with aplus (along with a few other cases) with the Python re module.
eg. "I passed my a+ exam." needs to become "I passed my aplus exam."
Just using \ba+ works fine most of ... | Matching a+ in a regex | 0 | 0 | 0 | 753 |
2,998,215 | 2010-06-08T14:27:00.000 | 20 | 0 | 1 | 0 | python,compiled,interpreted-language,pyc | 2,998,549 | 12 | false | 0 | 0 | Python (at least the most common implementation of it) follows a pattern of compiling the original source to byte codes, then interpreting the byte codes on a virtual machine. This means (again, the most common implementation) is neither a pure interpreter nor a pure compiler.
The other side of this is, however, that t... | 6 | 1,238 | 0 | Python is an interpreted language. But why does my source directory contain .pyc files, which are identified by Windows as "Compiled Python Files"? | If Python is interpreted, what are .pyc files? | 1 | 0 | 0 | 597,924 |
2,998,215 | 2010-06-08T14:27:00.000 | 1,098 | 0 | 1 | 0 | python,compiled,interpreted-language,pyc | 2,998,544 | 12 | false | 0 | 0 | I've been given to understand that
Python is an interpreted language...
This popular meme is incorrect, or, rather, constructed upon a misunderstanding of (natural) language levels: a similar mistake would be to say "the Bible is a hardcover book". Let me explain that simile...
"The Bible" is "a book" in the sense ... | 6 | 1,238 | 0 | Python is an interpreted language. But why does my source directory contain .pyc files, which are identified by Windows as "Compiled Python Files"? | If Python is interpreted, what are .pyc files? | 1 | 0 | 0 | 597,924 |
2,998,215 | 2010-06-08T14:27:00.000 | 7 | 0 | 1 | 0 | python,compiled,interpreted-language,pyc | 62,559,744 | 12 | false | 0 | 0 | tldr; it's a converted code from the source code, which the python VM interprets for execution.
Bottom-up understanding: the final stage of any program is to run/execute the program's instructions on the hardware/machine. So here are the stages preceding execution:
Executing/running on CPU
Converting bytecode to mach... | 6 | 1,238 | 0 | Python is an interpreted language. But why does my source directory contain .pyc files, which are identified by Windows as "Compiled Python Files"? | If Python is interpreted, what are .pyc files? | 1 | 0 | 0 | 597,924 |
2,998,215 | 2010-06-08T14:27:00.000 | 66 | 0 | 1 | 0 | python,compiled,interpreted-language,pyc | 2,998,248 | 12 | false | 0 | 0 | These are created by the Python interpreter when a .py file is imported, and they contain the "compiled bytecode" of the imported module/program, the idea being that the "translation" from source code to bytecode (which only needs to be done once) can be skipped on subsequent imports if the .pyc is newer than the corre... | 6 | 1,238 | 0 | Python is an interpreted language. But why does my source directory contain .pyc files, which are identified by Windows as "Compiled Python Files"? | If Python is interpreted, what are .pyc files? | 1 | 0 | 0 | 597,924 |
2,998,215 | 2010-06-08T14:27:00.000 | 210 | 0 | 1 | 0 | python,compiled,interpreted-language,pyc | 2,998,750 | 12 | false | 0 | 0 | There is no such thing as an interpreted language. Whether an interpreter or a compiler is used is purely a trait of the implementation and has absolutely nothing whatsoever to do with the language.
Every language can be implemented by either an interpreter or a compiler. The vast majority of languages have at least on... | 6 | 1,238 | 0 | Python is an interpreted language. But why does my source directory contain .pyc files, which are identified by Windows as "Compiled Python Files"? | If Python is interpreted, what are .pyc files? | 1 | 0 | 0 | 597,924 |
2,998,215 | 2010-06-08T14:27:00.000 | 15 | 0 | 1 | 0 | python,compiled,interpreted-language,pyc | 34,282,133 | 12 | false | 0 | 0 | Python's *.py file is just a text file in which you write some lines of code. When you try to execute this file using say "python filename.py"
This command invokes Python Virtual Machine. Python Virtual Machine has 2 components: "compiler" and "interpreter". Interpreter cannot directly read the text in *.py file, so th... | 6 | 1,238 | 0 | Python is an interpreted language. But why does my source directory contain .pyc files, which are identified by Windows as "Compiled Python Files"? | If Python is interpreted, what are .pyc files? | 1 | 0 | 0 | 597,924 |
3,001,185 | 2010-06-08T20:50:00.000 | 6 | 0 | 0 | 0 | python,user-interface,desktop,pyqt,wsgi | 3,003,086 | 3 | true | 1 | 0 | Use something like CherryPy or paste.httpserver. You can use wsgiref's server, and it generally works okay locally, but if you are doing Ajax the single-threaded nature of wsgiref can cause some odd results, or if you ever do a subrequest you'll get a race condition. But for most cases it'll be fine. It might be use... | 1 | 6 | 0 | The desktop app should start the web server on launch and should shut it down on close.
Assuming that the desktop is the only client allowed to connect to the web server, what is the best way to write this?
Both the web server and the desktop run in a blocking loop of their own. So, should I be using threads or multip... | what is the recommended way of running a embedded web server within a desktop app (say wsgi server with pyqt) | 1.2 | 0 | 0 | 2,601 |
3,001,827 | 2010-06-08T22:36:00.000 | 0 | 0 | 0 | 1 | python,c,networking,network-protocols,inter-process-communicat | 60,171,476 | 6 | false | 0 | 0 | if both applications running on same computer, use socket and serialize your objects to jsun. otherwise, use web service and jsun or xml. You can find jsun and xml parser in both languages. | 2 | 6 | 0 | I have very little idea what I'm doing here, I've never done anything like this before, but a friend and I are writing competing chess programs and they need to be able to communicate to each other.
He'll be writing mainly in C, the bulk of mine will be in Python, and I can see a few options:
Alternately write to a te... | OS-independent Inter-program communication between Python and C | 0 | 0 | 0 | 3,514 |
3,001,827 | 2010-06-08T22:36:00.000 | 0 | 0 | 0 | 1 | python,c,networking,network-protocols,inter-process-communicat | 3,099,077 | 6 | false | 0 | 0 | Sockets with a client/server model...
Basically, you and your friend are creating different implementations of the client.
The local client shows a visual representation of the game and stores the state of the pieces (position, killed/not-killed) and the rules about what the pieces can/can't do (which moves can be made... | 2 | 6 | 0 | I have very little idea what I'm doing here, I've never done anything like this before, but a friend and I are writing competing chess programs and they need to be able to communicate to each other.
He'll be writing mainly in C, the bulk of mine will be in Python, and I can see a few options:
Alternately write to a te... | OS-independent Inter-program communication between Python and C | 0 | 0 | 0 | 3,514 |
3,002,999 | 2010-06-09T03:55:00.000 | 23 | 0 | 0 | 1 | python,google-app-engine,google-cloud-datastore | 3,003,170 | 2 | true | 1 | 0 | Assign each entity a random number and store it in the entity. Then query for ten records whose random number is greater than (or less than) some other random number.
This isn't totally random, however, since entities with nearby random numbers will tend to show up together. If you want to beat this, do ten queries bas... | 1 | 21 | 0 | I have a datastore with around 1,000,000 entities in a model. I want to fetch 10 random entities from this.
I am not sure how to do this? can someone help? | Fetching a random record from the Google App Engine Datastore? | 1.2 | 0 | 0 | 5,002 |
3,003,450 | 2010-06-09T06:12:00.000 | 1 | 0 | 0 | 1 | python,networking,twisted | 3,011,987 | 2 | false | 0 | 0 | Seconding what Jean-Paul said, if you need more fine grained TCP connection management, just use reactor.CallLater. We have exactly that implementation on a Twisted/wxPython trading platform, and it works a treat. You might also want to tweak the behaviour of the ReconnectingClientFactory in order to achieve the result... | 1 | 4 | 0 | I wrote a server based on Twisted, and I encountered a problem, some of the clients are disconnected not gracefully. For example, the user pulls out the network cable.
For a while, the client on Windows is disconnected (the connectionLost is called, and it is also written in Twisted). And on the Linux server side, my c... | How to detect non-graceful disconnect of Twisted on Linux? | 0.099668 | 0 | 0 | 1,538 |
3,005,063 | 2010-06-09T10:45:00.000 | 3 | 0 | 0 | 0 | python,pyqt4,qtextedit | 3,005,405 | 2 | true | 1 | 0 | What you're asking for is called a fixed-width font. As James Hopkin remarked, HTML text in <tt> or <pre> tags is rendered with a fixed-width font.
However, what you describe sounds like a table. HTML has direct support for that, with <table>, <tr> (row) and <td> (data/cell). Don't bother with fixed-width fonts; just ... | 2 | 2 | 0 | Is there a way to set a fix size for the characters in HTML?
That means, say …
First row, 8th character is “Z”
Second row’s 8th character is “A”
I want to print out , when printed the “Z” has to be exactly on top of “A”
*Note: I'm using the insertHtml method in QTextEdit() | Is there a way to set a fixed width for the characters in HTML? | 1.2 | 0 | 0 | 396 |
3,005,063 | 2010-06-09T10:45:00.000 | 0 | 0 | 0 | 0 | python,pyqt4,qtextedit | 3,005,297 | 2 | false | 1 | 0 | Put the text in <tt> tags (or <pre> around a whole paragraph of text). | 2 | 2 | 0 | Is there a way to set a fix size for the characters in HTML?
That means, say …
First row, 8th character is “Z”
Second row’s 8th character is “A”
I want to print out , when printed the “Z” has to be exactly on top of “A”
*Note: I'm using the insertHtml method in QTextEdit() | Is there a way to set a fixed width for the characters in HTML? | 0 | 0 | 0 | 396 |
3,005,522 | 2010-06-09T11:54:00.000 | 4 | 0 | 0 | 0 | python,clipboard,pygtk,monitor | 3,010,018 | 1 | true | 0 | 1 | Without a proper notification API, such as WM_DrawClipboard messages, you would probably have to resort to a polling loop. And then you will cause major conflicts with other apps that are trying to use this shared resource.
Do not resort to a polling loop. | 1 | 6 | 0 | How can I make a simple clipboard monitor in Python using the PyGTK GUI?
I found gtk.clipboard class and but I couldn't find any solution to get the "signals" to trigger the event when the clipboard content has changed.
Any ideas? | PyGTK: how to make a clipboard monitor? | 1.2 | 0 | 0 | 1,505 |
3,005,632 | 2010-06-09T12:11:00.000 | 0 | 0 | 1 | 0 | python,windows,passwords,encryption | 3,005,689 | 2 | false | 0 | 0 | If you want to be able to get back the password (instead you should hash it), you could always salt it for extra measures. But that wouldn't be much help if the user can get the salt out of the executable.
Really the best way would be to not let them access the database at all. Use a web service or a server on your DB... | 1 | 0 | 0 | I have a script running on a remote machine. db info is stored in a configuration file. I want to be able to encrypt the password in the conf text so that no one can just read the file and gain access to the database. This is my current set up:
My conf file sensitive info is encoded with base64 module. The main script ... | encrypting passwords in a python conf file on a windows platform | 0 | 0 | 0 | 1,330 |
3,005,640 | 2010-06-09T12:12:00.000 | 0 | 0 | 0 | 0 | python,django,facebook | 6,583,766 | 1 | false | 1 | 0 | This is possible, using the access token provided for your page you can publish to this as you would with a user. If you want to post FROM the USER than you need to use the current user's access token, if you want to post FROM the PAGE then using the access token from the page you can publish to that | 1 | 1 | 0 | I'm at the moment working on a web page where the users who visit it should have the possibility to create an event in my web page's name. There is a Page on Facebook for the web page which should be the owner of the user created event. Is this possible? All users are authenticated using Facebook Connect, but since the... | Create event for another owner using Facebook Graph API | 0 | 0 | 1 | 700 |
3,006,769 | 2010-06-09T14:28:00.000 | 3 | 1 | 1 | 0 | python,optimization | 3,006,810 | 5 | false | 0 | 0 | As a general strategy, it's best to keep this data in an in-memory cache if it's static, and relatively small. Then, the 10k calls will read an in-memory cache rather than a file. Much faster.
If you are modifying the data, the alternative might be a database like SQLite, or embedded MS SQL Server (and there are others... | 4 | 1 | 0 | in my program i have a method which requires about 4 files to be open each time it is called,as i require to take some data.all this data from the file i have been storing in list for manupalation.
I approximatily need to call this method about 10,000 times.which is making my program very slow?
any method for handling ... | how to speed up the code? | 0.119427 | 0 | 0 | 209 |
3,006,769 | 2010-06-09T14:28:00.000 | 2 | 1 | 1 | 0 | python,optimization | 3,006,800 | 5 | false | 0 | 0 | Opening, closing, and reading a file 10,000 times is always going to be slow. Can you open the file once, do 10,000 operations on the list, then close the file once? | 4 | 1 | 0 | in my program i have a method which requires about 4 files to be open each time it is called,as i require to take some data.all this data from the file i have been storing in list for manupalation.
I approximatily need to call this method about 10,000 times.which is making my program very slow?
any method for handling ... | how to speed up the code? | 0.07983 | 0 | 0 | 209 |
3,006,769 | 2010-06-09T14:28:00.000 | 0 | 1 | 1 | 0 | python,optimization | 3,006,875 | 5 | false | 0 | 0 | Call the open to the file from the calling method of the one you want to run. Pass the data as parameters to the method | 4 | 1 | 0 | in my program i have a method which requires about 4 files to be open each time it is called,as i require to take some data.all this data from the file i have been storing in list for manupalation.
I approximatily need to call this method about 10,000 times.which is making my program very slow?
any method for handling ... | how to speed up the code? | 0 | 0 | 0 | 209 |
3,006,769 | 2010-06-09T14:28:00.000 | 0 | 1 | 1 | 0 | python,optimization | 3,006,895 | 5 | false | 0 | 0 | If the files are structured, kinda configuration files, it might be good to use ConfigParser library, else if you have other structural format then I think it would be better to store all this data in JSON or XML and perform any necessary operations on your data | 4 | 1 | 0 | in my program i have a method which requires about 4 files to be open each time it is called,as i require to take some data.all this data from the file i have been storing in list for manupalation.
I approximatily need to call this method about 10,000 times.which is making my program very slow?
any method for handling ... | how to speed up the code? | 0 | 0 | 0 | 209 |
3,007,678 | 2010-06-09T16:11:00.000 | 2 | 1 | 1 | 0 | python,optimization | 3,008,037 | 4 | false | 0 | 0 | So it seems you don't want to speed up the compile but want to speed up the execution.
If that is the case, my mantra is "do less." Save off results and keep them around, don't re-read the same file(s) over and over again. Read a lot of data out of the file at once and work with it.
On files specifically, your perfor... | 1 | 0 | 0 | i want to speed my code compilation..I have searched the internet and heard that psyco is a very tool to improve the speed.i have searched but could get a site for download.
i have installed any additional libraries or modules till date in my python..
can psyco user,tell where we can download the psyco and its installa... | how to speed up code? | 0.099668 | 0 | 0 | 1,091 |
3,008,509 | 2010-06-09T18:01:00.000 | 0 | 0 | 1 | 0 | python,installation | 13,910,180 | 9 | false | 1 | 0 | maybe your installer is i386 and your computer is AMD64. try to find the right package! | 3 | 57 | 0 | Can't download any python Windows modules and install. I wanted to experiment with scrapy framework and stackless but unable to install due to error "Python version 2.6 required, which was not found in the registry".
Trying to install it to
Windows 7, 64 bit machine | Python version 2.6 required, which was not found in the registry | 0 | 0 | 0 | 72,470 |
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