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Append column to pandas dataframe
...lid with uniquely valued Index objects , you can use: pd.concat([dat1.reset_index(), dat2], axis=1)
– beyondfloatingpoint
Aug 27 '19 at 9:21
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Unit test naming best practices [closed]
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I like Roy Osherove's naming strategy, it's the following:
[UnitOfWork_StateUnderTest_ExpectedBehavior]
It has every information needed on the method name and in a structured manner.
The unit of work can be as small as a single method, a class or as large as multiple classes. It should repres...
Setting Vim whitespace preferences by filetype
...iliar with scripting vim then jump to :help 41.11, otherwise read :help usr_40 and :help usr_41.
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What is the best way to concatenate two vectors?
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@boycy No. It is amortized constant time to push_back one element. To push back n elements is O(n)
– Konrad Lindenbach
Mar 12 '16 at 1:47
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How do I raise a Response Forbidden in django
...48/… I'm not sure about Django, but Django REST Framework has: from rest_framework import status status.HTTP_403_FORBIDDEN 403
– David Watson
Mar 4 '16 at 18:35
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How do I use itertools.groupby()?
...meone. It's probably because your array is not sorted try groupby(sorted(my_collection, key=lambda x: x[0]), lambda x: x[0])) under the assumption that my_collection = [("animal", "bear"), ("plant", "cactus"), ("animal", "duck")] and you want to group by animal or plant
– Robi...
Nested attributes unpermitted parameters
...ection and now you must whitelist params in the controller (instead of attr_accessible in the model) because the former optional gem strong_parameters became part of the Rails Core.
This should look something like this:
class PeopleController < ActionController::Base
def create
Person.cre...
How to determine the content size of a UIWebView?
...gSize.width, fittingSize.height);
}
Swift 4.x
func webViewDidFinishLoad(_ webView: UIWebView) {
var frame = webView.frame
frame.size.height = 1
webView.frame = frame
let fittingSize = webView.sizeThatFits(CGSize.init(width: 0, height: 0))
frame.size = fittingSize
webView.f...
.NET HttpClient. How to POST string value?
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You should private static readonly HttpClient _client = new HttpClient(); instead aspnetmonsters.com/2016/08/2016-08-27-httpclientwrong
– Sameer Alibhai
May 9 '17 at 15:05
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What is the difference between Cygwin and MinGW?
...-64 (pretty much what you always want, these days), install the mingw64-x86_64-gcc-core Cygwin package. MinGW-64 will then be available as the awkwardly named x86_64-w64-mingw32-gcc command. Please God(s), somebody unify the names of these bloody things already.
– Cecil Curry
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