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Why is DarkGray lighter than Gray?

... on the subject: Perhaps most unusual of the color clashes between X11 and W3C is the case of "Gray" and its variants. In HTML, "Gray" is specifically reserved for the 128 triplet (50% gray). However, in X11, "gray" was assigned to the 190 triplet (74.5%), which is close to W3C "Silver" ...
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Wait for page load in Selenium

...if your code executes too fast the previous page might not be unloaded yet and it will return true even though you are still on the old page. What you need to do is wait for the current page to unload and then call your above code. A way to detect page unload is to get a webelement on the current pa...
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How to estimate a programming task if you have no experience in it [closed]

...ing too long an estimate. Unanticipated problems occur, priorities change, and requirements are "updated". Even if you don't use all the time you asked for, you will have more testing time, or can release "early". I've always been far too optimistic in my estimates, and it can put a lot of stress i...
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How to activate an Anaconda environment

...or your environment (so that it gets the right Python from the environment and Scripts\ on Windows). Imagine you have created an environment called py33 by using: conda create -n py33 python=3.3 anaconda Here the folders are created by default in Anaconda\envs, so you need to set the PATH as: s...
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Why does multiprocessing use only a single core after I import numpy?

...er here. It turns out that certain Python modules (numpy, scipy, tables, pandas, skimage...) mess with core affinity on import. As far as I can tell, this problem seems to be specifically caused by them linking against multithreaded OpenBLAS libraries. A workaround is to reset the task affinity us...
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In C#, what is the difference between public, private, protected, and having no access modifier?

All my college years I have been using public , and would like to know the difference between public , private , and protected ? ...
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How to keep a Python script output window open?

...a few options: Run the program from an already-open terminal. Open a command prompt and type: python myscript.py For that to work you need the python executable in your path. Just check on how to edit environment variables on Windows, and add C:\PYTHON26 (or whatever directory you installed pyt...
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Compare given date with today

... That format is perfectly appropriate for a standard string comparison e.g. if ($date1 > $date2){ //Action } To get today's date in that format, simply use: date("Y-m-d H:i:s"). So: $today = date("Y-m-d H:i:s"); $date = "2010-01-21 00:00:00"; if ($date < $t...
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Clojure 1.2.1/1.3/1.4 'proxy generated in Grails 2.0.0 runtime fails. 1.2.0 is fine

I'm working on extending the Grails Clojure plugin in Grails 2.0.0 (and 2.1.0-SNAPSHOT) and I wanted to update it to Clojure 1.3.0 and add clojure.tools.logging . ...
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How to “return an object” in C++?

...t of the problem (I know the difference between having things on the stack and putting them on the heap). 8 Answers ...