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Programmatically stop execution of python script? [duplicate]
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You could raise SystemExit(0) instead of going to all the trouble to import sys; sys.exit(0).
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How to take the first N items from a generator or list in Python? [duplicate]
...imple syntax: array[start:stop:step]
You can omit any parameter. These are all valid: array[start:], array[:stop], array[::step]
Slicing a generator
import itertools
top5 = itertools.islice(my_list, 5) # grab the first five elements
You can't slice a generator directly in Python. itertools.i...
What's the deal with a leading underscore in PHP class methods?
... { to give it some extra weight.
I've never heard of developers prefacing all their methods with underscores, so I can't begin to explain what causes that.
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Retrieve only the queried element in an object array in MongoDB collection
...r to filter an array during projection, which has the benefit of including all matches, instead of just the first one.
db.test.aggregate([
// Get just the docs that contain a shapes element where color is 'red'
{$match: {'shapes.color': 'red'}},
{$project: {
shapes: {$filter: {
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UILabel sizeToFit doesn't work with autolayout ios6
How am I supposed to configure programmatically (and in which method) a UILabel whose height depends on its text? I've been trying to set it up using a combination of Storyboard and code, but to no avail. Everyone recommends sizeToFit while setting lineBreakMode and numberOfLines . However, ...
How can I view all the git repositories on my machine?
Is there a way in which I can see all the git repositories that exist on my machine? Any command for that?
10 Answers
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unbound method f() must be called with fibo_ instance as first argument (got classobj instance inste
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OK, first of all, you don't have to get a reference to the module into a different name; you already have a reference (from the import) and you can just use it. If you want a different name just use import swineflu as f.
Second, you are...
Is there a way to detect if an image is blurry?
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Unless your image is cyclic, you will usually have sharp edges at the borders of the image that lead to very high frequencies
– Niki
Oct 14 '11 at 11:04
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Equivalent C++ to Python generator pattern
...to signal termination
In your trivial example, it's easy enough. Conceptually:
struct State { unsigned i, j; };
State make();
void next(State&);
bool isDone(State const&);
Of course, we wrap this as a proper class:
class PairSequence:
// (implicit aliases)
public std::iterat...
Check if an array contains any element of another array in JavaScript
...like it at Ramda should always be used instead of vanilla imho. Better for all devs...
– Leon Gaban
Aug 15 '16 at 20:32
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