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Standard deviation of a list

... Since Python 3.4 / PEP450 there is a statistics module in the standard library, which has a method stdev for calculating the standard deviation of iterables like yours: >>> A_rank = [0.8, 0.4, 1.2, 3.7, 2.6, 5.8] >>...
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How to implement a good __hash__ function in python [duplicate]

... It's unfortunate that Python does not make a combine_hashes function available. – Fred Foo Sep 20 '12 at 11:34 ...
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Python Git Module experiences? [closed]

What are people's experiences with any of the Git modules for Python? (I know of GitPython, PyGit, and Dulwich - feel free to mention others if you know of them.) ...
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Why (0-6) is -6 = False? [duplicate]

... 256 inclusive are cached as global objects sharing the same address with CPython, thus the is test passes. This artifact is explained in detail in http://www.laurentluce.com/posts/python-integer-objects-implementation/, and we could check the current source code in http://hg.python.org/cpython/fil...
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Compare two MySQL databases [closed]

...ompare utility developed by MySQL themselves which you can use on Windows, Linux or Mac - it can also output SQL statements for both data AND schema changes and does a lot more tests than a simple command line diff could determine. – Jasdeep Khalsa Oct 4 '14 at...
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OS X Bash, 'watch' command

I'm looking for the best way to duplicate the Linux 'watch' command on Mac OS X. I'd like to run a command every few seconds to pattern match on the contents of an output file using 'tail' and 'sed'. ...
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How to convert a set to a list in python?

I am trying to convert a set to a list in Python 2.6. I'm using this syntax: 9 Answers ...
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Python: most idiomatic way to convert None to empty string?

... This syntax was introduced in 2.5; for earlier versions of Python, you can use return s is not None and s or ''. – Ben Blank Jun 24 '09 at 0:16 8 ...
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How to use Boost in Visual Studio 2010

...Boost.IOStreams Bzip2 filters Boost.IOStreams Zlib filters Boost.MPI Boost.Python Boost.Regex ICU support Boost.IOStreams Bzip2 filters: Unarchive the latest version of bzip2 library (1.0.6 as of writing) source files into a directory of your choice (e.g. C:\bzip2-1.0.6). Follow the second set o...
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Solving a “communications link failure” with JDBC and MySQL [duplicate]

...need to change the MySQL settings, you can refer to the following files: Linux: /etc/mysql/my.cnf or /etc/my.cnf (depending on the Linux distribution and MySQL package used) Windows: C:**ProgramData**\MySQL\MySQL Server 5.6\my.ini (Notice it's ProgramData, not Program Files) Here are the solutio...