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How does a hash table work?

... in layman's terms. Let's assume you want to fill up a library with books and not just stuff them in there, but you want to be able to easily find them again when you need them. So, you decide that if the person that wants to read a book knows the title of the book and the exact title to boot, the...
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clang error: unknown argument: '-mno-fused-madd' (python package installation failure)

...5-16]: Apple has fixed this problem with updated system Pythons (2.7, 2.6, and 2.5) in OS X 10.9.3 so the workaround is no longer necessary when using the latest Mavericks and Xcode 5.1+. However, as of now, the workaround is still required for OS X 10.8.x (Mountain Lion, currently 10.8.5) if you a...
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`date` command on OS X doesn't have ISO 8601 `-I` option?

... want to print the current datetime in ISO 8601 format (preferably UTC), and it seems that this should be as simple as date -I : ...
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Timeout command on Mac OS X?

Is there an alternative for the timeout command on Mac OSx. The basic requirement is I am able to run a command for a specified amount of time. ...
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What does Python's eval() do?

...was a trivial example, but you could let the user type in an arbitrary command and have python execute it. So you could have the user type in a command string and then have python run it as code. So for example: eval("__import__('os').remove('file')"). – BYS2 F...
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Spark java.lang.OutOfMemoryError: Java heap space

... suggestions: If your nodes are configured to have 6g maximum for Spark (and are leaving a little for other processes), then use 6g rather than 4g, spark.executor.memory=6g. Make sure you're using as much memory as possible by checking the UI (it will say how much mem you're using) Try using more ...
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grunt: command not found when running from terminal

... I added the path using sudo nano /etc/paths but I still have no grunt commands /usr/local/share/npm/bin – user686483 Jun 1 '13 at 4:45 ...
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How to retrieve the current version of a MySQL database management system (DBMS)?

What command returns the current version of a MySQL database? 19 Answers 19 ...
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How to set JAVA_HOME environment variable on Mac OS X 10.9?

I just purchased a brand new MacBook Pro. 7 Answers 7 ...
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How to import other Python files?

...t__): Because this function is meant for use by the Python interpreter and not for general use it is better to use importlib.import_module() to programmatically import a module. – Tadhg McDonald-Jensen Feb 23 '16 at 15:04 ...