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Thread Safety in Python's dictionary

...mic operations, there are corner cases where they aren’t atomic (e.g. if __hash__ or __eq__ are implemented as Python methods) and their atomicity should not be relied upon. Neither should you rely on atomic variable assignment (since this in turn depends on dictionaries). Use the Queue module's Q...
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Running python script inside ipython

... from within the directory of "my_script.py" you can simply do: %run ./my_script.py share | improve this answer | follow ...
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AngularJS HTTP post to PHP and undefined

... data value to pass an appropriate query string, so PHP is not populating $_POST as you expect. My suggestion would be to just use the default angularjs setting of application/json as header, read the raw input in PHP, and then deserialize the JSON. That can be achieved in PHP like this: $postdat...
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Check if PHP session has already started

...om a page that doesn't have session started. Therefore when I have session_start() on this script I sometimes get the error message for "session already started". For that I've put these lines: ...
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Linux - Replacing spaces in the file names

... This should do it: for file in *; do mv "$file" `echo $file | tr ' ' '_'` ; done share | improve this answer | follow | ...
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What is the _snowman param in Ruby on Rails 3 forms for?

...n Ruby on Rails 3 (currently using Beta 4), I see that when using the form_tag or form_for helpers there is a hidden field named _snowman with the value of ☃ ( Unicode \x9731) showing up. ...
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How can I find the data structure that represents mine layout of Minesweeper in memory?

...g] This is message id, which in case of F2 button press should contain WM_COMMAND value. You are to find where it is compared to 111h. It can be done either by tracing down edx in IDA or by setting conditional breakpoint in WinDbg and pressing F2 in the game. Either way leads to something like ....
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How to crop circular area from bitmap in Android

...createBitmap(bitmap.getWidth(), bitmap.getHeight(), Config.ARGB_8888); Canvas canvas = new Canvas(output); final int color = 0xff424242; final Paint paint = new Paint(); final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight()); paint.setAntiAlias(true...
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MySQL check if a table exists without throwing an exception

...PDO syntax for it, but this seems pretty straight-forward: $result = mysql_query("SHOW TABLES LIKE 'myTable'"); $tableExists = mysql_num_rows($result) > 0; share | improve this answer ...
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CSS hack大全 - 创意 - 清泛网 - 专注C/C++及内核技术

...0deff\9; /*IE6、7、8识别*/ +background-color:#a200ff;/*IE6、7识别*/ _background-color:#1e0bd1/*IE6识别*/} @media screen and (-webkit-min-device-pixel-ratio:0){.bb{background-color:#f1ee18}}{} /* Safari(Chrome) 有效 */ @media all and (min-width: 0px){ .bb{background-color:#f1ee18;/*op...