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How can I install pip on Windows?
...wealth of libraries accessible to everyone. Newbies are no longer excluded from using community libraries by the prohibitive difficulty of setup. In shipping with a package manager, Python joins Ruby, Node.js, Haskell, Perl, Go—almost every other contemporary language with a majority open-source c...
How can I convert a DateTime to the number of seconds since 1970?
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That's basically it. These are the methods I use to convert to and from Unix epoch time:
public static DateTime ConvertFromUnixTimestamp(double timestamp)
{
DateTime origin = new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc);
return origin.AddSeconds(timestamp);
}
public stati...
Get list from pandas DataFrame column headers
I want to get a list of the column headers from a pandas DataFrame. The DataFrame will come from user input so I won't know how many columns there will be or what they will be called.
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Proper way to handle multiple forms on one page in Django
...ctions to deal with the two different forms.
Read the submit button values from the POST data. You can tell which submit button was clicked: How can I build multiple submit buttons django form?
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How can I recover the return value of a function passed to multiprocessing.Process?
...sult, to do the next work. How could we sure where exactly which output is from which process
– Catbuilts
Sep 29 '16 at 11:08
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What are the rules for JavaScript's automatic semicolon insertion (ASI)?
...he grammar, a semicolon is inserted before it if:
The token is separated from the previous token by at least one LineTerminator.
The token is }
e.g.:
{ 1
2 } 3
is transformed to
{ 1
;2 ;} 3;
The NumericLiteral 1 meets the first condition, the following token is a line terminator...
iOS 7 style Blur view
... the complete replication of the blur size in iOS 7's control center view. From that, I created the GPUImageiOS7BlurFilter class that encapsulates the proper blur size and color correction that Apple appears to be using here. This is how GPUImage's blur (on the right) compares to the built-in blur (...
Add native files from NuGet package to project output directory
...sing a powershell script (which will only be run inside Visual Studio, not from the command prompt, on build servers or in other IDEs, and is not supported in project.json / xproj DNX projects) and I prefer to use a Link to the files rather than having an additional copy of the files within the proj...
Difference between Pig and Hive? Why have both? [closed]
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Check out this post from Alan Gates, Pig architect at Yahoo!, that compares when would use a SQL like Hive rather than Pig. He makes a very convincing case as to the usefulness of a procedural language like Pig (vs. declarative SQL) and its uti...
How to get Core Data object from specific Object ID?
... error:(NSError **)error
Fetches the object from the store that has that ID, or nil if it doesn't exist.
(Be aware: there are two methods on NSManagedObjectContext with similar-seeming names that tripped me up. To help keep them straight, here's what the other two do:...