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Specify format for input arguments argparse python
...hon script that requires some command line inputs and I am using argparse for parsing them. I found the documentation a bit confusing and couldn't find a way to check for a format in the input parameters. What I mean by checking format is explained with this example script:
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How to set tint for an image view programmatically in android?
Need to set tint for an image view... I am using it the following way:
22 Answers
22
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PEP 8, why no spaces around '=' in keyword argument or a default parameter value?
Why does PEP 8 recommend not having spaces around = in a keyword argument or a default parameter value ?
6 Answers
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Why not use HTTPS for everything?
...ing up a server, and had the SSL certificate(s), why wouldn't I use HTTPS for the entire site instead of just for purchases/logins? I would think it would make more sense just to encrypt the entire site, and protect the user entirely. It would prevent problems such as deciding what has to be secured...
How do I run only specific tests in Rspec?
...rue do
1.should == 1
end
end
$ rspec --tag focus spec/my_spec.rb
More info on GitHub. (anyone with a better link, please advise)
(update)
RSpec is now superbly documented here. See the --tag option section for details.
As of v2.6 this kind of tag can be expressed even more simply by incl...
iOS - Calling App Delegate method from ViewController
...h the name of your application class.
Then, provided you have a property for the other view controller, you can call something like:
[appDelegate.viewController someMethod];
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What is the 'override' keyword in C++ used for? [duplicate]
I am a beginner in C++. I have come across override keyword used in the header file that I am working on. May I know, what is real use of override , perhaps with an example would be easy to understand.
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Useful example of a shutdown hook in Java?
...ou could do the following:
Let the shutdown hook set some AtomicBoolean (or volatile boolean) "keepRunning" to false
(Optionally, .interrupt the working threads if they wait for data in some blocking call)
Wait for the working threads (executing writeBatch in your case) to finish, by calling the T...
How do I get my Python program to sleep for 50 milliseconds?
How do I get my Python program to sleep for 50 milliseconds?
6 Answers
6
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convert UIImage to NSData
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Try one of the following, depending on your image format:
UIImageJPEGRepresentation
Returns the data for the specified image in JPEG format.
NSData * UIImageJPEGRepresentation (
UIImage *image,
CGFloat compressionQuality
);
UIImagePNGRepresentation
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