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Filtering a list based on a list of booleans
...t runs out). Using itertools for such a simple case is a bit overkill ...
One thing you do in your example you should really stop doing is comparing things to True, this is usually not necessary. Instead of if filter[idx]==True: ..., you can simply write if filter[idx]: ....
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What is an SDL renderer?
...he SDL_Renderer renders SDL_Texture, which stores the pixel information of one element. It's the new version of SDL_Surface which is much the same. The difference is mostly that SDL_Surface is just a struct containing pixel information, while SDL_Texture is an efficient, driver-specific representati...
How do I do a 'git status' so it doesn't display untracked files without using .gitignore?
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What if I have done, git reset --hard <commit id> , then I git status -uno, nothing show up, only untracked files shown
– Snow Bases
Jun 21 '18 at 2:34
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Align button at the bottom of div using CSS
...hin a parent div.
When using position:absolute; the element will be positioned absolutely from the first positioned parent div, if it can't find one it will position absolutely from the window so you will need to make sure the content div is positioned.
To make the content div positioned, all posi...
Is the practice of returning a C++ reference variable evil?
...s of type T, to type "T const&" as per 6.6.3.2 (a legal conversion but one which does not extend lifetime), and then the calling code initialises the ref of type "T const&" with the function's result, also of type "T const&" -- again, a legal but non-lifetime-extending process. End resul...
How to use RSpec's should_raise with any kind of exception?
...ct is for rspec 2.0 and higher. This renders moot the argument about which one is better, since the lambda syntax doesn't work any more
– Rob
Aug 16 '12 at 21:48
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Hide all warnings in ipython
...arnings.py. I'm leaving this question and answer for the record in case anyone else comes across the same issue.
Quite often it is useful to see a warning once. This can be set by:
warnings.filterwarnings(action='once')
s...
How to declare variable and use it in the same Oracle SQL script?
...riable is only usable within BEGIN and END so if you want to use more than one you will have to do multiple BEGIN END wrappings
DECLARE stupidvar varchar(20);
BEGIN
SELECT stupid into stupidvar FROM stupiddata CC
WHERE stupidid = 2;
DECLARE evenmorestupidvar varchar(20);
BEGIN
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`elif` in list comprehension conditionals
...ntax. For many years before their introduction "tertiary expressions" were one of the five most-requested changes in the language. Since Guido van Rossum explicitly designed it as a statement-based language, he firmly resisted for a long time (tertiary expressions, and particularly their abuse, are ...
How to not run an example using roxygen2?
...Key. Obviously I'd rather not publish mine, and the examples fail without one.
4 Answers
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