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Convert list to tuple in Python
...nce you have used a tuple variable to hold a tuple (45, 34) earlier... So, now tuple is an object of type tuple now...
It is no more a type and hence, it is no more Callable.
Never use any built-in types as your variable name... You do have any other name to use. Use any arbitrary name for your va...
Why are Where and Select outperforming just Select?
...);
int result2 = myCollection.Sum(mc => mc.IsValid ? mc.Value : 0);
Now here's the kicker:
LINQ uses deferred execution. Thus, while it may appear that result1 iterates over the collection twice, it actually only iterates over it once. The Where() condition is actually applied during the S...
Why is the Android emulator so slow? How can we speed up the Android emulator? [closed]
...
Update
You can now enable the Quick Boot option for Android Emulator. That will save emulator state, and it will start the emulator quickly on the next boot.
Click on Emulator edit button, then click Show Advanced Setting. Then enable Quic...
How can I have lowercase routes in ASP.NET MVC?
...
GONeale link has changed; URL is now goneale.com/2008/12/19/lowercase-route-urls-in-aspnet-mvc
– Daniel Liuzzi
Jan 14 '11 at 3:45
4
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What is the difference between Gemfile and Gemfile.lock in Ruby on Rails
... say: "I want nokogiri as long as it’s greater than version 1.4.4", etc. Now suppose that I have set up my Gemfile 8 months ago and I successful setup my app with this requirement. 8 months ago nokogiri version was 1.4.4. My rails apps was running perfectly without any problems with this version.
...
Simplest way to serve static data from outside the application server in a Java web application
...n the response, you should set the Content-Type header so that the client knows which application to associate with the provided file. And, you should set the Content-Length header so that the client can calculate the download progress, otherwise it will be unknown. And, you should set the Content-D...
Django Server Error: port is already in use
... 0 0 :::3306 :::* LISTEN
So now just close the port in which Django/python running already by killing the process associated with it.
kill -9 PID
in my case
kill -9 6599
Now run your Django app.
...
Redirecting stdout to “nothing” in python
...y large number of modules, each printing something to the standard output. Now as the project has grown in size, there are large no. of print statements printing a lot on the std out which has made the program considerably slower.
...
Does Foreign Key improve query performance?
...pretty much useless because it doesn't answer the question. It's great to know that foreign keys are not intended to have a (positive) effect on performance, but the question was concerning reality, not intentions.
– John
Mar 15 '17 at 16:04
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Android Bitmap to Base64 String
...Stream is = new Base64InputStream( new FileInputStream(yourFileHere) );
//Now that we have the InputStream, we can read it and put it into the String
final StringWriter writer = new StringWriter();
IOUtils.copy(is , writer, encoding);
final String yourBase64String = writer.toString();
As you can ...