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When to use cla(), clf() or close() for clearing a plot in matplotlib?

... They all do different things, since matplotlib uses a hierarchical order in which a figure window contains a figure which may consist of many axes. Additionally, there are functions from the pyplot interface and there are methods ...
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Facebook Graph API v2.0+ - /me/friends returns empty, or only friends who also use my application

... In v2.0 of the Graph API, calling /me/friends returns the person's friends who also use the app. In addition, in v2.0, you must request the user_friends permission from each user. user_friends is no longer included by default in every login. Each user...
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Remove the bottom divider of an android ListView

... This seems to no longer work starting with 4.4.2. I can run literally the same app across my many test devices (ranging from 2.3.7 all the way up until 4.4.2) and KitKat is the only one where this seems to have no effect... Any ideas? I'm not adding a footer or header to my ListView and I'...
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How to test which port MySQL is running on and whether it can be connected to?

I have installed MySQL and even logged in there as a user. 13 Answers 13 ...
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Add vertical whitespace using Twitter Bootstrap?

...g the documentation for used notation: Spacing utilities that apply to all breakpoints, from xs to xl, have no breakpoint abbreviation in them. This is because those classes are applied from min-width: 0 and up, and thus are not bound by a media query. The remaining breakpoints, however, d...
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Syntax behind sorted(key=lambda: …)

... key is a function that will be called to transform the collection's items before they are compared. The parameter passed to key must be something that is callable. The use of lambda creates an anonymous function (which is callable). In the case of sorted ...
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How to get names of enum entries?

... The code you posted will work; it will print out all the members of the enum, including the values of the enum members. For example, the following code: enum myEnum { bar, foo } for (var enumMember in myEnum) { console.log("enum member: ", enumMember); } Will print the...
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How do I measure request and response times at once using cURL?

...me="curl -w \"@$HOME/.curl-format.txt\" -o NUL -s " Then you can simply call... curltime wordpress.org Thanks to commenter Pete Doyle! Make a Linux/Mac stand-alone script This script does not require a separate .txt file to contain the formatting. Create a new file, curltime, somewhere in ...
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For loop for HTMLCollection elements

I'm trying to set get id of all elements in an HTMLCollectionOf . I wrote the following code: 12 Answers ...
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What is the difference between LR, SLR, and LALR parsers?

... SLR, LALR and LR parsers can all be implemented using exactly the same table-driven machinery. Fundamentally, the parsing algorithm collects the next input token T, and consults the current state S (and associated lookahead, GOTO, and reduction tables...