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How to run only one task in ansible playbook?

...e for this reason. Example: tasks: - yum: name={{ item }} state=installed with_items: - httpd - memcached tags: - packages - template: src=templates/src.j2 dest=/etc/foo.conf tags: - configuration If you wanted to just run the “co...
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Using XPATH to search text containing  

...the text from OpenQA concerning this issue (found here): HTML automatically normalizes whitespace within elements, ignoring leading/trailing spaces and converting extra spaces, tabs and newlines into a single space. When Selenium reads text out of the page, it attempts to duplicate t...
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How to convert a ruby hash object to JSON?

... the possibility to extend existing classes with your own methods. That's called "class reopening" or monkey-patching (the meaning of the latter can vary, though). So, take a look here: car = {:make => "bmw", :year => "2003"} # => {:make=>"bmw", :year=>"2003"} car.to_json # NoMethod...
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How to solve “Fatal error: Class 'MySQLi' not found”?

...lass that is namespaced, you might see a similar error Fatal error: Class 'foo\bar\mysqli' not found in. The way to fix this is to explicitly set it to the root namespace with a preceding backslash like so: <?php $mysqli = new \MySQLi($db_server, $db_user, $db_pass, $db_name); ...
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What are advantages of Artificial Neural Networks over Support Vector Machines? [closed]

...s exactly the number of training samples (though that mainly occurs with small training sets or in degenerate cases) and in general its model size scales linearly. In natural language processing, SVM classifiers with tens of thousands of support vectors, each having hundreds of thousands of features...
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Only initializers, entity members, and entity navigation properties are supported

... return View(debts); } That, of course, would mean that you bringing all of the data back to the web server and filtering the data on it. If you want to filter on the DB server, you can create a Calculated Column on the table or use a Stored Procedure. ...
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How to dynamically build a JSON object with Python?

I am new to Python and I am playing with JSON data. I would like to dynamically build a JSON object by adding some key-value to an existing JSON object. ...
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How to raise a ValueError?

... function: The OP needs/wants a for loop. 1st function: FAIL for contains('foo', 'f'). – John Machin Dec 9 '10 at 6:56 1 ...
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Programmatically select text in a contenteditable HTML element?

In JavaScript, it's possible to programmatically select text in an input or textarea element. You can focus an input with ipt.focus() , and then select its contents with ipt.select() . You can even select a specific range with ipt.setSelectionRange(from,to) . ...
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Retrieving parameters from a URL

... Python 2: import urlparse url = 'http://foo.appspot.com/abc?def=ghi' parsed = urlparse.urlparse(url) print urlparse.parse_qs(parsed.query)['def'] Python 3: import urllib.parse as urlparse from urllib.parse import parse_qs url = 'http://foo.appspot.com/abc?def=gh...