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Ruby : How to write a gem? [closed]
...e tools, steps and pitfalls ?
Are there any good tutorials, screencasts, etc., which helped you learning how to do it ?
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Load data from txt with pandas
...v('output_list.txt', sep=" ", header=None)
data.columns = ["a", "b", "c", "etc."]
Add sep=" " in your code, leaving a blank space between the quotes. So pandas can detect spaces between values and sort in columns. Data columns is for naming your columns.
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jQuery parent of a parent
...= $(parent).parent();
var parentParentParent = $(parentParent).parent();
etc.
Explain “claims-based authentication” to a 5-year-old
...ing some sort of mechanism (username/password, client secret, certificate, etc.) and that gives you a token that proves you are who you say you are. Then, you trade that access token for an ID token. That process will use your identity to find and build a list of claims, sign it and then hand you ba...
knitr Markdown highlighting in Emacs?
...accordingly):
;; Just an Emacs personal dir containing polymode packages etc.
(setq MY-EMACS "~/conf/emacs")
(defun my-emacs (subfolder)
"Get path to personal dir + subfolder"
(concat (expand-file-name MY-EMACS) "/" subfolder))
;; ESS Markdown
;; -------------
(defun rmd-mode ()
"ESS Markdo...
What's “wrong” with C++ wchar_t and wstrings? What are some alternatives to wide characters?
...standard library support, debugger support (more tricks may be necessary), etc. With wide characters it's generally harder or impossible to get all of this, and you may get different pieces on different platforms.
One thing UTF-8 does not provide is the ability to use simple text algorithms such as...
Find TODO tags in Eclipse
...string for the ability to specify this workspace, that file, this project, etc.)
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How to unzip a list of tuples into individual lists? [duplicate]
...elements from all inputs, starting with the first values, then the second, etc. By using *l you apply all tuples in l as separate arguments to the zip() function, so zip() pairs up 1 with 3 with 8 first, then 2 with 4 and 9. Those happen to correspond nicely with the columns, or the transposition of...
What's the difference between QMainWindow, QWidget and QDialog?
...tions to make it work well with common buttons on dialogs (accept, reject, etc.).
QMainWindow is designed around common needs for a main window to have. It has predefined places for a menu bar, a status bar, a toolbar, and other widgets. It does not have any built-in allowances for buttons like Q...
Getting a structural type with an anonymous class's methods from a macro
...hat class that's statically typed as a structural type with those methods, etc. This is possible with the macro system in 2.10.0, and the type member part is extremely easy:
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