chunks

How do you split a list into evenly sized chunks in Python?

I have a list of arbitrary length, and I need to split it up into equal size chunks and operate on it. There are some obvious ways to do this, like keeping a counter and two lists, and when the second list fills up, add it to the first list and empty the second list for the next round of data, but this is potentially extremely expensive....

What is the most "pythonic" way to iterate over a list in chunks?

I have a Python script which takes as input a list of integers, which I need to work with four integers at a time. Unfortunately, I don't have control of the input, or I'd have it passed in as a list of four-element tuples. Currently, I'm iterating over it this way: for i in xrange(0, len(ints), 4): # dummy op for example code ...

cancel stream request from WCF server to client

Hi, I posted about stream request here [wcf-chunk-data-with-stream]:http://stackoverflow.com/questions/853448/wcf-chunk-data-with-stream I solved that task but now when i close request in client part server continue to send data. is it possible to cancel stream request from WCF server to client? ...

Writing memory to socket in chunks in C

Hi, I'm attempting to write memory contents to a socket in chunks. I can write files that are smaller than my buffer, but anything else and I'm in deep water. /* allocate memory for file contents */ char fileContents = malloc(sizeof(char)*filesize); /* read a file into memory */ read(fileDescriptor, fileContents , filesize); int chunk...

splitting a list of arbitrary size into only roughly N-equal parts

hi all, what is the best way to divide a list into roughly equal parts? for example, if I have a list with 54 elements and i want to split it into 3 roughly equal parts? I'd like the parts to be as even as possible, hopefully assigning the elements that do not fit in a way that gives the most equal parts. to give a concrete case, if th...

PHP: Split string into chunks of 8, how do I do this?

I have binary basically, say it's 300 in length. How would I split (much like using explode) it into 8 bit chunks? I look at chunk_split() but it only seems to have an 'end' parameter, not an option to put it into an array.. Or can it be socketed into an array? The end 8 digits can be below 8 (in case a miscopy from someone, and it's 4)...

SQL Server 2005 – How to split multiple Insert into... Output Select TOP (z)...From if (Approximate) Max number of child rows in a Transaction is known.

I have these staging tables: - Order (PK=OrderID), - SubOrder(PK=SubOrderID, FK=OrderID) and - Item(PK=ItemID, FK1=SubOrderID, FK2=OrderID). I established relationships on the client (C#.NET and copied tables to staging tables in SQL Server suing SQLBulCopy). Now I need to establish Parent/Child/Grand-Child relationships on the ser...

compare 2 differents chunks of text c#

Someone know an algorithm to compare 2 text and stablish a similarity percentage. Like for example say that chunk 1 is 80% similar to chunk 2, or chunk1 is entirely different from chunk 2 that means that has a 0% of similarity. ...

Autoextend on chunks informix

Does anyone know if Informix has the same capability as Oracle with respect to the autoextend feature. With Oracle I can create a datafile and by using the autoextend feature Oracle will automatically grow the file when it gets full. Does Informix have anything like that for chunks? I can't seem to find anything in the documentation. T...

Read Oracle BLOB data as chunks.

Hi, I have the following queries on fetching a BLOB data from Oracle ( I am trying to use OracleDataReader - .Net to read the BLOB value.): Is it possible to read a BLOB data on Oracle database as chunks without loading the entire BLOB on to server memory? I believe OracleDataReader.GetBytes() will load the entire blob on server memory....

How to read data in chunks from notepad file in Matlab?

My data is in following format: TABLE NUMBER 1 FILE: ReservoirModel_CMGBuilder.irf WELL: Well-1 TIME Oil Rate SC - Yearly day bbl/day -0.01 0 364.99 35368.4 729.99 29307 1094.99 27309.5 1460.99 26058.8 1825.99...

HttpWebResponse, and chunked http. How to read one single chunk?

There's a binary file on a remote server, that I wish to stream to my client. I issue a GET request and the response is an HTTP header + body that has the binary file, in chunks. The problem is, each chunk contains as well as the binary data, some metadata that I need. How can I read just ONE chunk at a time from the HTTP stream with C...

Paging python lists in slices of 4 items

Possible Duplicate: How do you split a list into evenly sized chunks in Python? mylist = [1, 2, 3, 4, 5, 6, 7, 8, 9] I need to pass blocks of these to a third party API that can only deal with 4 items at a time. I could do one at a time but it's a HTTP request and process for each go so I'd prefer to do it in the lowest poss...