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How do I extract the contents of an rpm?
...istributions do not provide a wrapper executable to make this easier (eg rpmextract bla.rpm), as this is a very common operation. User should not need to care about the intermediary cpio format.
– Alan Evangelista
Sep 24 '14 at 22:32
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Image.Save(..) throws a GDI+ exception because the memory stream is closed
i've got some binary data which i want to save as an image. When i try to save the image, it throws an exception if the memory stream used to create the image, was closed before the save. The reason i do this is because i'm dynamically creating images and as such .. i need to use a memory stream.
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How to dynamically compose an OR query filter in Django?
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you can make dynamic fields by using **{'fieldname': value}: queries = [Q(**{'fieldname': value}) for value in values]
– rechie
Sep 11 '13 at 3:17
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How to tell if node.js is installed or not
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My mistake, I forgot to mention I am running this through a php script. So where then will it be printed if not by terminal?
– user1340052
May 7 '12 at 1:38
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split string only on first instance of specified character
...ator being a sub string starting with _) but also let the result contain some part of our separator (i.e. everything after _).
In this example our separator (matching _(.+)) is _luck_buddy and the captured group (within the separator) is lucky_buddy. Without the capturing parenthesis the luck_buddy...
Get list of a class' instance methods
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You actually want TestClass.instance_methods, unless you're interested in what TestClass itself can do.
class TestClass
def method1
end
def method2
end
def method3
end
end
TestClass.methods.grep(/method1/) # => []
TestClass.instance_methods.gr...
Web deployment task build failed
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I encountered the same issue when building via TFS. When I tried to manually import the website I got a more informative error: "not able to log on the user \WDeployConfigWriter".
Turns out that when you install web deploy it sets up two local ...
Import error: No module name urllib2
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As stated in the urllib2 documentation:
The urllib2 module has been split across several modules in Python 3 named urllib.request and urllib.error. The 2to3 tool will automatically adapt imports when converting your sources to Python 3.
So you shou...
Understanding :source option of has_one/has_many through of Rails
Please help me in understanding the :source option of has_one/has_many :through association. The Rails API explanation makes very little sense to me.
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