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super() raises “TypeError: must be type, not classobj” for new-style class

...ith an old-style class". However, the important point is that the correct test for "is this a new-style instance (i.e. object)?" is >>> class OldStyle: pass >>> instance = OldStyle() >>> issubclass(instance.__class__, object) False and not (as in the question): >&g...
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Can I use Objective-C blocks as properties?

...sure they are declared as @property(copy). For example: typedef void(^TestBlock)(void); @interface SecondViewController : UIViewController @property (nonatomic, copy) TestBlock block; @end In MRC, blocks capturing context variables are allocated in stack; they will be released when the stack...
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How do you get assembler output from C/C++ source in gcc?

... generate what code: # create assembler code: g++ -S -fverbose-asm -g -O2 test.cc -o test.s # create asm interlaced with source lines: as -alhnd test.s > test.lst Found in Algorithms for programmers, page 3 (which is the overall 15th page of the PDF). ...
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Remove characters from C# string

...lation, where dozens of lines of code and multiple loops would be needed. Testing the compiled version of this regex against a simple unoptimised loop 50000 times, the regex is 6X slower. – Tony Cheetham Feb 13 '18 at 12:07 ...
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What's the difference between dependencies, devDependencies and peerDependencies in npm package.json

...dency would be used by different dependencies. expected to start on 3.0 (untested): give a warning if missing on npm install, and you have to solve the dependency yourself manually. When running, if the dependency is missing, you get an error (mentioned by @nextgentech) Transitivity (mentioned by B...
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Where's my JSON data in my incoming Django request?

... Please explain what you mean by 'test client'? What are you trying to do? – Jared Knipp Oct 25 '11 at 19:00 ...
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Is there any particular difference between intval and casting to int - `(int) X`?

...ted in the comments on the PHP doc page and shamelessly reiterated here: $test_int = 12; $test_string = "12"; $test_float = 12.8; echo (int) $test_int; // 12 echo (int) $test_string; // 12 echo (int) $test_float; // 12 echo intval($test_int, 8); // 12 <-- WOAH! echo i...
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How to call function from another file in go language?

...more than one function with a given name in a package. Remove the main in test2.go and compile the application. The demo function will be visible from test1.go. share | improve this answer ...
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Error: “dictionary update sequence element #0 has length 1; 2 is required” on Django 1.4

... pass a keyword argument name to url() function. Code with error url(r"^testing/$", views.testing, "testing") Code without error url(r"^testing/$", views.testing, name="testing") So finally I removed the above error in this way. It might be something different in your case. So check your url...
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How to check if running as root in a bash script

... @StephenAngelico Sudo should work. If you're testing it by doing $ sudo echo $EUID ; that's a bad test and will fail because $EUID is expanded before the command is passed to sudo. Try putting echo $EUID in a test script and running that with sudo. ...