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Pandas percentage of total with groupby

... is a table of some kind, so 100 * x doesn't intuitively make sense (especially when some of the cells contain strings like AZ, ...). – dhardy Feb 6 '15 at 9:42 6 ...
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Why charset names are not constants?

... Or maybe "UTF-8" ? When searching internet for code samples you will see all of the above. Why not just make them named constants and use Charset.UTF8 ? ...
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Rename specific column(s) in pandas

I've got a dataframe called data . How would I rename the only one column header? For example gdp to log(gdp) ? 5 Answe...
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How to search a Git repository by commit message?

... To search the commit log (across all branches) for the given text: git log --all --grep='Build 0051' To search the actual content of commits through a repo's history, use: git grep 'Build 0051' $(git rev-list --all) to show all instances of the given t...
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Inherit docstrings in Python class inheritance

...out this a while ago, and a recipe was created. Check it out here. """ doc_inherit decorator Usage: class Foo(object): def foo(self): "Frobber" pass class Bar(Foo): @doc_inherit def foo(self): pass Now, Bar.foo.__doc__ == Bar().foo.__doc__ == Foo.foo.__doc__...
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Python __call__ special method practical example

I know that __call__ method in a class is triggered when the instance of a class is called. However, I have no idea when I can use this special method, because one can simply create a new method and perform the same operation done in __call__ method and instead of calling the instance, you can c...
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Why isn't `int pow(int base, int exponent)` in the standard C++ libraries?

... of power functions (and others). C++11 [c.math] /11 states, after listing all the float/double/long double overloads (my emphasis, and paraphrased): Moreover, there shall be additional overloads sufficient to ensure that, if any argument corresponding to a double parameter has type double or an...
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Git error on commit after merge - fatal: cannot do a partial commit during a merge

...t adding "-i" to the commit command fixes this problem for me. The -i basically tells it to stage additional files before committing. That is: git commit -i myfile.php share | improve this answer ...
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mingw-w64 threads: posix vs win32

I'm installing mingw-w64 on Windows and there are two options: win32 threads and posix threads. I know what is the difference between win32 threads and pthreads but I don't understand what is the difference between these two options. I doubt that if I will choose posix threads it will prevent me fro...
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Restoring MySQL database from physical files

...mysql data directory is quick and easy, but figuring out, before that, why all my resoterd DBs seemed to have no tables took a bit longer. – Edurne Pascual Sep 26 '12 at 15:41 10 ...