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How to write header row with csv.DictWriter?

...od now available in 2.7 / 3.2: from collections import OrderedDict ordered_fieldnames = OrderedDict([('field1',None),('field2',None)]) with open(outfile,'wb') as fou: dw = csv.DictWriter(fou, delimiter='\t', fieldnames=ordered_fieldnames) dw.writeheader() # continue on to write data ...
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How to iterate for loop in reverse order in swift?

... an array with one trillion Ints! Test: var count = 0 for i in lazy(1...1_000_000_000_000).reverse() { if ++count > 5 { break } println(i) } For Swift 2.0 in Xcode 7: for i in (1...10).reverse() { print(i) } Note that in Swift 2.0, (1...1_000_000_000_000).reverse(...
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“ImportError: No module named” when trying to run Python script

...d the folder in which you told the notebook to operate from in your ipython_notebook_config.py file (typically using the c.NotebookManager.notebook_dir setting). The solution is to provide the python interpreter with the path-to-your-module. The simplest solution is to append that path to your sys....
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git merge: apply changes to code that moved to a different file

...t; file.txt $ git add file.txt $ git commit -am "file.txt added." [master (root-commit) 401b10d] file.txt added. 1 file changed, 1 insertion(+) create mode 100644 file.txt Create a branch where you will edit later: $ git branch branch-with-edits Branch branch-with-edits set up to track local br...
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Explicitly calling return in a function or not

...t return. The following plot is created from data selected this way: bench_nor2 <- function(x,repeats) { system.time(rep( # without explicit return (function(x) vector(length=x,mode="numeric"))(x) ,repeats)) } bench_ret2 <- function(x,repeats) { system.time(rep( # with explicit return (funct...
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What is the effect of extern “C” in C++?

...n it posted yet. You'll very often see code in C headers like so: #ifdef __cplusplus extern "C" { #endif // all of your legacy C code here #ifdef __cplusplus } #endif What this accomplishes is that it allows you to use that C header file with your C++ code, because the macro "__cplusplus" will...
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Decorators with parameters?

I have a problem with the transfer of variable 'insurance_mode' by the decorator. I would do it by the following decorator statement: ...
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How to specify different Debug/Release output directories in QMake .pro file

...cpp \ src/dialogs.cpp Release:DESTDIR = release Release:OBJECTS_DIR = release/.obj Release:MOC_DIR = release/.moc Release:RCC_DIR = release/.rcc Release:UI_DIR = release/.ui Debug:DESTDIR = debug Debug:OBJECTS_DIR = debug/.obj Debug:MOC_DIR = debug/.moc Debug:RCC_DIR = debug/.rcc Debug:...
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No output to console from a WPF application?

...ity] public static class ConsoleManager { private const string Kernel32_DllName = "kernel32.dll"; [DllImport(Kernel32_DllName)] private static extern bool AllocConsole(); [DllImport(Kernel32_DllName)] private static extern bool FreeConsole(); [DllImport(Kernel32_DllName)] ...
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Can I use Twitter Bootstrap and jQuery UI at the same time?

...no] - jquery-ui-1.9.2.custom.min.css [images] - ui-bg_diagonals-thick_90_eeeeee_40x40.png - ui-bg_glass_100_e4f1fb_1x400.png - ui-bg_glass_50_3baae3_1x400.png - ui-bg_glass_80_d7ebf9_1x400.png - ui-bg_highlight-hard_100_f2f5f7_1x100.png ...