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Efficient way to remove keys with empty strings from a dict
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Python 2.X
dict((k, v) for k, v in metadata.iteritems() if v)
Python 2.7 - 3.X
{k: v for k, v in metadata.items() if v is not None}
Note that all of your keys have values. It's just that some of those values are the empty string. There's no such thing as a key...
Error when deploying an artifact in Nexus
Im' getting an error when deploying an artifact in my own repository in a Nexus server: "Failed to deploy artifacts: Could not transfer artifact" "Failed to transfer file http:///my_artifact. Return code is: 400"
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What is the meaning of prepended double colon “::”?
...ration, class 1
::Configuration::doStuff(...)
}
}
Basically, it allows you to traverse up to the global namespace since your name might get clobbered by a new definition inside another namespace, in this case MyApp.
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How much faster is Redis than mongoDB?
It's widely mentioned that Redis is "Blazing Fast" and mongoDB is fast too. But, I'm having trouble finding actual numbers comparing the results of the two. Given similar configurations, features and operations (and maybe showing how the factor changes with different configurations and operations), ...
Relative paths in Python
...ored. I do have a relative path from the script but when I call the script it treats that as a path relative to the current working directory. Is there a way to specify that this relative url is from the location of the script instead?
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Repository Pattern vs DAL
...nt a DAL object I have the GetStuff, Add/Delete etc methods and I always write the interface first so that I can switch db later.
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HTML Form: Select-Option vs Datalist-Option
... differences are between Select-Option and Datalist-Option. Is there any situation in which it would be better to use one or the other? An example of each follows:
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What is the size of column of int(11) in mysql in bytes?
...ways be 4 bytes no matter what length is specified.
TINYINT = 1 byte (8 bit)
SMALLINT = 2 bytes (16 bit)
MEDIUMINT = 3 bytes (24 bit)
INT = 4 bytes (32 bit)
BIGINT = 8 bytes (64 bit).
The length just specifies how many characters to pad when selecting data with the mysql command line client. 123...
jQuery's jquery-1.10.2.min.map is triggering a 404 (Not Found)
...ry-1.10.2.min.map, jquery.min.map or jquery-2.0.3.min.map, but can happen with anything) first thing to know is this is only requested when using the DevTools.
Your users will not be hitting this 404.
Now you can fix this or disable the sourcemap functionality.
Fix: get the files
Next, it's an ...
SQL to LINQ Tool [closed]
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Edit 7/17/2020: I cannot delete this accepted answer. It used to be good, but now it isn't. Beware really old posts, guys. I'm removing the link.
[Linqer] is a SQL to LINQ converter tool. It helps you to learn LINQ and convert ...