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Maven build failed: “Unable to locate the Javac Compiler in: jre or jdk issue”

...ectory: C:\Program Files (x86)\Java\jdk1.6.0_18 If this is not the case, it's possible that the brackets and spaces in the JAVA_HOME path are causing issues. Try copying your JDK to a different location and updating your JAVA_HOME. ...
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Iterating Over Dictionary Key Values Corresponding to List in Python

...ict (league) itself, or league.keys(): for team in league.keys(): runs_scored, runs_allowed = map(float, league[team]) You can also iterate over both the keys and the values at once by iterating over league.items(): for team, runs in league.items(): runs_scored, runs_allowed = map(float,...
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Check whether a path is valid in Python without creating a file at the path's target

...e-name is a valid, e.g. if the file-system will allow me to create a file with such a name. The file-name has some unicode characters in it. ...
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Integrating MySQL with Python in Windows

I am finding it difficult to use MySQL with Python in my windows system. 16 Answers 16...
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Queue.Queue vs. collections.deque

...tended as a datastructure. That's why Queue.Queue has methods like put_nowait(), get_nowait(), and join(), whereas collections.deque doesn't. Queue.Queue isn't intended to be used as a collection, which is why it lacks the likes of the in operator. It boils down to this: if you have multiple thread...
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Code Golf - π day

...r-vddlMr-32rlpxRR42r2*lpxRRAP4*2+lN+sN2+dlM>y] dsyx5klNlR/p 88 chars. Iterative solution. Matches test cases. For every X and Y checks if X^2+Y^2<=R^2 1?dsMdd*sRd2%--sY[0lM-[dd*lYd*+lRr(2*d5*32+PlN+sN1+dlM!<x]dsxxAPlY2+dsYlM>y] dsyx5klNlR/p To run dc pi.dc. Here is an older annotat...
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How to open multiple pull requests on GitHub

When I open a pull request on GitHub . All commits since my last request and all new ones are automatically added to this request . ...
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ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock'

I installed MySQL on Mac OS X Mountain Lion with homebrew install mysql , but when I tried mysql -u root I got the following error: ...
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New self vs. new static

...ic? self refers to the same class in which the new keyword is actually written. static, in PHP 5.3's late static bindings, refers to whatever class in the hierarchy you called the method on. In the following example, B inherits both methods from A. The self invocation is bound to A because it's ...
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How to install PyQt4 on Windows using pip?

I'm using Python 3.4 on Windows. When I run a script, it complains 13 Answers 13 ...