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How to make a flat list out of list of lists?
...cuts posted so far. (l is the list to flatten.)
Here is the corresponding function:
flatten = lambda l: [item for sublist in l for item in sublist]
As evidence, you can use the timeit module in the standard library:
$ python -mtimeit -s'l=[[1,2,3],[4,5,6], [7], [8,9]]*99' '[item for sublist in ...
How to set an “Accept:” header on Spring RestTemplate request?
...plate();
try {
HttpHeaders headers = createHttpHeaders("fred","1234");
HttpEntity<String> entity = new HttpEntity<String>("parameters", headers);
ResponseEntity<String> response = restTemplate.exchange(theUrl, HttpMethod.GET, entity, String.class);
...
Regarding 'main(int argc, char *argv[])' [duplicate]
...you would write it like this:
int // Specifies that type of variable the function returns.
// main() must return an integer
main ( int argc, char **argv ) {
// code
return 0; // Indicates that everything went well.
}
If your program does not require any arguments, it is equally va...
Canvas is stretched when using CSS but normal with “width” / “height” properties
...t answer, but don't forget to add the canvasObject.setAttribute('height', '123') too!
– Tom Wells
Mar 15 '13 at 14:46
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Should I use `import os.path` or `import os`?
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os.path works in a funny way. It looks like os should be a package with a submodule path, but in reality os is a normal module that does magic with sys.modules to inject os.path. Here's what happens:
When Python starts up, it loads a bunch of...
File system that uses tags rather than folders?
...c genre=indie-rock good year=1999
$ tmsu tag melody.mp3 music
$ tmsu tag DC123.jpg photo landscape country=italy year=2014
$ tmsu files music year = 1999
./song.mp3
And the virtual filesystem:
$ mkdir mp
$ tmsu mount mp
$ ls mp
query tags
$ ls tags
country genre good landscape photo music ...
Find all tables containing column with specified name - MS SQL Server
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AdaTheDevAdaTheDev
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Logout: GET or POST?
... for handy URL prefetching.- Nick Craver (@Nick_Craver) January 29, 2013
fun fact: StackOverflow used to handle log-out via GET, but not anymore.
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View/edit ID3 data for MP3 files
...net developers. You can find it here:
http://sourceforge.net/projects/mpg123net/
Included are the samples to convert mp3 file to PCM, and read ID3 tags.
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Invalid argument supplied for foreach()
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123
How about this one? lot cleaner and all in single line.
foreach ((array) $items as $item) {
...