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How to do parallel programming in Python?
... the multiprocessing module. For this case I might use a processing pool:
from multiprocessing import Pool
pool = Pool()
result1 = pool.apply_async(solve1, [A]) # evaluate "solve1(A)" asynchronously
result2 = pool.apply_async(solve2, [B]) # evaluate "solve2(B)" asynchronously
answer1 = result...
Error-Handling in Swift-Language
...ay decided to propagate the error, if your are calling a throwing function from a function that is itself marked with throws keyword:
func fulfill(quest: Quest) throws {
let dragon = try summonDefaultDragon()
quest.ride(dragon)
}
Alternatively, you can call throwing function using try?:
...
How do I completely uninstall Node.js, and reinstall from beginning (Mac OS X)
...r any local or lib or include folders, and delete any node or node_modules from there
go to /usr/local/bin and delete any node executable
You may also need to do:
sudo rm -rf /opt/local/bin/node /opt/local/include/node /opt/local/lib/node_modules
sudo rm -rf /usr/local/bin/npm /usr/local/share/ma...
Paste text on Android Emulator
... Level 19 (Android 4.4 - Kitkat) and higher, you can simply copy and paste from your desktop with your mouse or keyboard.
This feature was announced with Android Studio 2.3
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Python Flask, how to set content type
I am using Flask and I return an XML file from a get request. How do I set the content type to xml ?
7 Answers
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What is the difference between a 'closure' and a 'lambda'?
...tion here. Instead of asking random programmers who learned about closures from practice with certain programming languages or other clueless programmers, take a journey to the source (where it all began). And since lambdas and closures come from Lambda Calculus invented by Alonzo Church back in the...
How can I get the named parameters from a URL using Flask?
...
Use request.args to get parsed contents of query string:
from flask import request
@app.route(...)
def login():
username = request.args.get('username')
password = request.args.get('password')
shar...
How to return a string value from a Bash function
I'd like to return a string from a Bash function.
18 Answers
18
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Copying files using rsync from remote server to local machine
...e ssh'd into my remote server, what would the command be to copy all files from a directory to a local directory on my machine?
...
How does the Amazon Recommendation feature work?
...ata sources they have to mine...
Purchased shopping carts = real money from real people spent on real items = powerful data and a lot of it.
Items added to carts but abandoned.
Pricing experiments online (A/B testing, etc.) where they offer the same products at different prices and see the r...