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Iterating each character in a string using Python

...open(filename) as f: for line in f: # do something with line If that seems like magic, well it kinda is, but the idea behind it is really simple. There's a simple iterator protocol that can be applied to any kind of object to make the for loop work on it. Simply implement an iterat...
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How do you get the list of targets in a makefile?

...t the makefile in the current directory; respects makefiles explicitly specified with -f <file> excludes hidden targets - by convention, these are targets whose name starts neither with a letter nor a digit makes do with a single phony target prefixes the command with @ to prevent it from bein...
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Generating v5 UUID. What is name and namespace?

...ducible UUID for each namespace using "uuid -v5 $ROOTUUID $NAMESPACENAME". Now you can create unique UUIDs for keys within a namespace using "uuid -v5 $NAMESPACEUUID $KEY". These UUIDs can be thrown into a single key-value store with high probability of avoiding collision. This process can be repea...
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Calculating a directory's size using Python?

...or calculating the size of a directory using Python? It would be very nice if the routine would format the size nicely in Mb/Gb etc. ...
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How does Google's Page Speed lossless image compression work?

...e files that can be stripped away if filesize is your primary concern. I know that info is out there on the web, I just wanted to have a nice place to collate it here on SO. – Drew Noakes Mar 27 '11 at 19:10 ...
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jasmine: Async callback was not invoked within timeout specified by jasmine.DEFAULT_TIMEOUT_INTERVAL

I have an angular service called requestNotificationChannel : 17 Answers 17 ...
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How to query SOLR for empty fields?

... @user2043553 Nope, if you ?q=-id:* you get Cannot parse '-q:*': '*' or '?' not allowed as first character in WildcardQuery – Yzmir Ramirez Dec 5 '14 at 18:47 ...
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nginx showing blank PHP pages

... You're welcome, glad to know it still helps people after all these years. However, please note @spacepile's updated answer below, which is probably better. – Julian H. Lam Feb 24 '15 at 23:38 ...
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Rails Observer Alternatives for 4.0

... They are in a plugin now. Can I also recommend an alternative which will give you controllers like: class PostsController < ApplicationController def create @post = Post.new(params[:post]) @post.subscribe(PusherListener.new) @...
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What is WEB-INF used for in a Java EE web application?

...ld process. While you are usually free to design your own build process, nowadays most people will use a standardized approach such as Apache Maven. Among other things Maven defines defaults for which resources in the project structure map to what resources in the resulting artifact (the resulting...