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in entity framework code first, how to use KeyAttribute on multiple columns
...ty map to a PK column. But how can I define a PK on more then one column, and specifically, how can I control order of the columns in the index? Is it a result of the order of properties in the class?
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Mercurial .hgignore for Visual Studio 2010 projects
...re asking about an entry that's already there.. Feel free to edit the list and yes I totally agree, it should be added
– Shady M. Najib
Apr 14 '11 at 12:07
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How to kill a child process after a given timeout in Bash?
... launches a child process that crashes (actually, hangs) from time to time and with no apparent reason (closed source, so there isn't much I can do about it). As a result, I would like to be able to launch this process for a given amount of time, and kill it if it did not return successfully after a...
How to determine whether a Pandas Column contains a particular value
I am trying to determine whether there is an entry in a Pandas column that has a particular value. I tried to do this with if x in df['id'] . I thought this was working, except when I fed it a value that I knew was not in the column 43 in df['id'] it still returned True . When I subset to a data...
Git: Pull from other remote
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git pull is really just a shorthand for git pull <remote> <branchname>, in most cases it's equivalent to git pull origin master. You will need to add another remote and pull explicitly from it. This page describes it in detail:
http://help.gith...
Understand the “Decorator Pattern” with a real world example
...case of a pizza shop. In the pizza shop they will sell few pizza varieties and they will also provide toppings in the menu. Now imagine a situation wherein if the pizza shop has to provide prices for each combination of pizza and topping. Even if there are four basic pizzas and 8 different toppings,...
How to properly assert that an exception gets raised in pytest?
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There are two ways to handle these kind of cases in pytest:
Using pytest.raises function
Using pytest.mark.xfail decorator
As the documentation says:
Using pytest.raises is likely to be better for cases where you are testing exceptions your ow...
How do I make a semi transparent background?
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yes, IE supports rgba, its syntax is #ARGB and is written as filter:progid:DXImageTransform.Microsoft.gradient(startColorstr=#AARRGGBBAA,endColorstr=#AARRGGBBAA); its basically a gradient of a static color but with transparency.
– Tarun
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Mixing a PHP variable with a string literal
Say I have a variable $test and it's defined as: $test = 'cheese'
4 Answers
4
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Binary search (bisection) in Python
Is there a library function that performs binary search on a list/tuple and return the position of the item if found and 'False' (-1, None, etc.) if not?
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