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Semi-transparent color layer over background-image?

I have a DIV and I would like to put a pattern as background. This pattern is gray. So to make it a little more nice, I would like to put a light transparent color "layer" over. Below is what I tried but which did not work. Is there a way to put the colored layer over the background image? ...
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Multiprocessing: How to use Pool.map on a function defined in a class?

...s: I tried using parmap on some functions that passed around a defaultdict and got the PicklingError again. I did not figure out a solution to this, I just reworked my code to not use the defaultdict. – sans Jul 8 '11 at 23:41 ...
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How to Remove Array Element and Then Re-Index Array?

...t to modify like below. I want to remove element (elements) of it by index and then re-index array. Is it possible? 9 Answe...
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Why does the order of the loops affect performance when iterating over a 2D array?

... are two programs that are almost identical except that I switched the i and j variables around. They both run in different amounts of time. Could someone explain why this happens? ...
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How to include js file in another js file? [duplicate]

...ude a js file into another js file , so as to stick to the DRY principle and avoid duplication of code. 4 Answers ...
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PHP convert date format dd/mm/yyyy => yyyy-mm-dd [duplicate]

...ate from dd/mm/yyyy => yyyy-mm-dd . I have using the mktime() function and other functions but I cannot seem to make it work. I have managed to explode the original date using '/' as the delimiter but I have no success changing the format and swapping the '/' with a '-' . ...
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Dynamically set local variable [duplicate]

...ntrary to other answers already posted you cannot modify locals() directly and expect it to work. >>> def foo(): lcl = locals() lcl['xyz'] = 42 print(xyz) >>> foo() Traceback (most recent call last): File "<pyshell#6>", line 1, in <module> foo() ...
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How to obtain Signing certificate fingerprint (SHA1) for OAuth 2.0 on Android?

I'm trying to register my android app following the steps in https://developers.google.com/console/help/#installed_applications which leads me to follow http://developer.android.com/tools/publishing/app-signing.html . ...
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Python: How to get stdout after running os.system? [duplicate]

...t Or as a function (using shell=True was required for me on Python 2.6.7 and check_output was not added until 2.7, making it unusable here): def system_call(command): p = subprocess.Popen([command], stdout=subprocess.PIPE, shell=True) return p.stdout.read() ...
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What's the simplest way to print a Java array?

... Since Java 5 you can import java.util.Arrays; and then use Arrays.toString(arr) or Arrays.deepToString(arr) for arrays within arrays. Note that the Object[] version calls .toString() on each object in the array. The output is even decorated in the exact way you're asking...