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How to avoid circular imports in Python? [duplicate]

....py Types of circular import problems Circular import dependencies typically fall into two categories depending on what you're trying to import and where you're using it inside each module. (And whether you're using python 2 or 3). 1. Errors importing modules with circular imports In some cases...
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Accessing class variables from a list comprehension in the class definition

...ing a newly created local namespace and the original global namespace. (Usually, the suite contains only function definitions.) When the class’s suite finishes execution, its execution frame is discarded but its local namespace is saved. [4] A class object is then created using the inheritance lis...
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Which, if any, C++ compilers do tail-recursion optimization?

... All current mainstream compilers perform tail call optimisation fairly well (and have done for more than a decade), even for mutually recursive calls such as: int bar(int, int); int foo(int n, int acc) { return (n == 0)...
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What is the best way to force yourself to master vi? [closed]

... First of all, you may want to pick up Vim; it has a vastly superior feature set along with everything vi has. That said, it takes discipline to learn. If you have a job and can't afford the productivity hit (without getting fired), I...
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SVG fill color transparency / alpha?

...or example: <rect ... fill="#044B94" fill-opacity="0.4"/> Additionally you have the following: stroke-opacity attribute for the stroke opacity for the entire object share | improve this ...
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CMake: Print out all accessible variables in a script

I'm wondering if there is a way to print out all accessible variables in CMake. I'm not interested in the CMake variables - as in the --help-variables option. I'm talking about my variables that I defined, or the variables defined by included scripts. ...
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Checkout subdirectories in Git?

...lace outside of the working copy) that I got used to just making lots of small single-purpose repositories. If you insist (or really need it), though, you could make a git repository with just mytheme and myplugins directories and symlink those from within the WordPress install. MDCore wrote: ...
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How to modify a global variable within a function in bash?

...alise that if you just run the function without assigning it to a variable all the global variables within it will update. Instead of returning a string array, why not just update the string array in the function then assign it to another variable after the function has finished ? ...
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Manual deployment vs. Amazon Elastic Beanstalk

What are the advantages we get by using Elastic Beanstalk over maually creating EC2 instance and setting up tomcat server and deploy etc for a typical java web applicaion. Are load balancing, Monitoring and autoscaling the only advantages? ...
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How to remove an element from a list by index

...org/projects/python/trunk/Objects/listobject.c how PyList_GetItem() essentially returns ((PyListObject *)op) -> ob_item[i]; - the ith element of an array. – glglgl Sep 9 '13 at 7:53 ...