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What are good uses for Python3's “Function Annotations”
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I think this is actually great.
Coming from an academic background, I can tell you that annotations have proved themselves invaluable for enabling smart static analyzers for languages like Java. For instance, you could define semantics like state restrictions, thr...
Saving a Numpy array as an image
...An answer using PIL (just in case it's useful).
given a numpy array "A":
from PIL import Image
im = Image.fromarray(A)
im.save("your_file.jpeg")
you can replace "jpeg" with almost any format you want. More details about the formats here
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Is there a Rake equivalent in Python?
...hon (2.6+ and 3.3+) task execution tool & library, drawing inspiration from various sources to arrive at a powerful & clean feature set.
Below are a few descriptive statements from Invoke's website:
Invoke is a Python (2.6+ and 3.3+) task execution tool & library, drawing inspiration f...
Split a String into an array in Swift?
...OS (10.0 and later)
if let nameComps = nameFormatter.personNameComponents(from: name) {
nameComps.namePrefix // Mr.
nameComps.givenName // Steven
nameComps.middleName // Paul
nameComps.familyName // Jobs
nameComps.nameSuffix // Jr.
// It can also be configured to...
Which is better, return value or out parameter?
If we want to get a value from a method, we can use either return value, like this:
17 Answers
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No module named _sqlite3
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I had the same problem (building python2.5 from source on Ubuntu Lucid), and import sqlite3 threw this same exception. I've installed libsqlite3-dev from the package manager, recompiled python2.5, and then the import worked.
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CharSequence VS String in Java?
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But keep in mind this caveat from the CharSequence javadoc: This interface does not refine the general contracts of the equals and hashCode methods. The result of comparing two objects that implement CharSequence is therefore, in general, undefined. Each...
Defeating a Poker Bot
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Defeating a bot from the serverside perspective
Many online poker sites use popup
Captcha inputs that are triggered by
suspicious activity.
Some poker sites monitor playing
times and patterns (i.e., worst case
scenario is a player who play...
What's an Aggregate Root?
...itory pattern, aggregate roots are the only objects your client code loads from the repository.
The repository encapsulates access to child objects - from a caller's perspective it automatically loads them, either at the same time the root is loaded or when they're actually needed (as with lazy loa...
SparseArray vs HashMap
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//but can be copied from Android source code
In terms of memory, here is an example of SparseIntArray vs HashMap<Integer, Integer> for 1000 elements:
SparseIntArray:
class SparseIntArray {
int[] keys;
int[] values;
int si...