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Sorting Python list based on the length of the string
...than y, 0 if x is equal to y, and 1 if x is greater than y.
Of course, you can instead use the key parameter:
xs.sort(key=lambda s: len(s))
This tells the sort method to order based on whatever the key function returns.
EDIT: Thanks to balpha and Ruslan below for pointing out that you can just pass...
What is the difference between require and require-dev sections in composer.json?
...oser, I know so little about it and have a little experience with web application development.
6 Answers
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How to install a specific version of a ruby gem?
Using the command-line gem tool, how can I install a specific version of a gem?
6 Answers
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How to recover a dropped stash in Git?
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Once you know the hash of the stash commit you dropped, you can apply it as a stash:
git stash apply $stash_hash
Or, you can create a separate branch for it with
git branch recovered $stash_hash
After that, you can do whatever you want with all the normal tools. When you’re done, ...
How to write PNG image to string with the PIL?
I have generated an image using PIL . How can I save it to a string in memory?
The Image.save() method requires a file.
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Why are Oracle table/column/index names limited to 30 characters?
I can understand that many years ago there would be this kind of limitation, but nowadays surely this limit could easily be increased. We have naming conventions for objects, but there is always a case that turns up where we hit this limit - especially in naming foreign keys.
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How to check if an email address exists without sending an email?
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There are two methods you can sometimes use to determine if a recipient actually exists:
You can connect to the server, and issue a VRFY command. Very few servers support this command, but it is intended for exactly this. If the server responds with...
What are naming conventions for MongoDB?
...es that apply to relation databases should apply here. And after so many decades there is still no agreement whether RDBMS tables should be named singular or plural...
MongoDB speaks JavaScript, so utilize JS naming conventions of camelCase.
MongoDB official documentation mentions you may use unders...
How to configure a HTTP proxy for svn
...check code from the repository http://code.sixapart.com/svn/perlbal/ . I can only access the the repository url by setting a proxy. I guess if I want to get the code from the same URL by svn I need to configure a proxy, too. So does anyone of you could tell me how to configure a HTTP proxy in svn?...
Collection versus List what should you use on your interfaces?
...al implementations. You'll notice the methods on it are not virtual and so cannot be overridden, and there are no hooks into its Add/Insert/Remove operations.
This means that if you need to alter the behavior of the collection in the future (e.g. to reject null objects that people try to add, or t...