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Django: ImproperlyConfigured: The SECRET_KEY setting must not be empty
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I had the same error and it turned out to be a circular dependency between a module or class loaded by the settings and the settings module itself. In my case it was a middleware class which was named in the settings which itself tried to load th...
Calling a function when ng-repeat has finished
...I am trying to implement is basically a "on ng repeat finished rendering" handler. I am able to detect when it is done but I can't figure out how to trigger a function from it.
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How to elegantly check if a number is within a range?
How can I do this elegantly with C# and .NET 3.5/4?
27 Answers
27
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Naming returned columns in Pandas aggregate function? [duplicate]
I'm having trouble with Pandas' groupby functionality. I've read the documentation , but I can't see to figure out how to apply aggregate functions to multiple columns and have custom names for those columns.
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Extract a substring according to a pattern
...we create a data frame with two columns, one for the part before the colon and one for after, and then extract the latter.
library(dplyr)
library(tidyr)
library(purrr)
DF <- data.frame(string)
DF %>%
separate(string, into = c("pre", "post")) %>%
pull("post")
## [1] "E001" "E002" "E00...
How do I activate C++ 11 in CMake?
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CMake 3.1 introduced the CMAKE_CXX_STANDARD variable that you can use. If you know that you will always have CMake 3.1 available, you can just write this in your top-level CMakeLists.txt file, or put it right before any new target is defined:
set (CMAKE_CXX_ST...
Can constructors throw exceptions in Java?
...structor ought to be careful to avoid acquiring unmanaged resources (file handles etc) and then throwing an exception without releasing them. For example, if the constructor tries to open a FileInputStream and a FileOutputStream, and the first succeeds but the second fails, you should try to close t...
When 1 px border is added to div, Div size increases, Don't want to do that
...d), under the html->layout tab.
Just as an example, a div with a width and height of 10px and a border of 1px, will have an outer width and height of 12px.
For your case, to make it appear like the border is on the "inside" of the div, in your selected CSS class, you can reduce the width and he...
ArrayBuffer to base64 encoded string
...edited Sep 29 '14 at 16:11
herbrandson
2,07722 gold badges3030 silver badges4343 bronze badges
answered Feb 27 '12 at 1:29
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Pythonic way to check if a list is sorted or not
... edited Jan 29 '18 at 14:08
Andreas Haferburg
4,42311 gold badge2424 silver badges4949 bronze badges
answered Sep 20 '10 at 20:33
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