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Does Python optimize tail recursion?
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No, and it never will since Guido van Rossum prefers to be able to have proper tracebacks:
Tail Recursion Elimination (2009-04-22)
Final Words on Tail Calls (2009-04-27)
You can manually eliminate the recursion with a transfor...
How should I read a file line-by-line in Python?
...files faster than the garbage collector calls finalizers on orphaned file handles. The usual workaround is to trigger the GC immediately, but this is a nasty hack and it has to be done by every function that could encounter the error, including those in libraries. What a nightmare.
Or you could j...
How do you change a repository description on GitHub?
...bout the repository can be changed by clicking on a cog icon in the right-hand side menu's "About" section:
Upon doing so, a popup will appear where the description, website, topics, and homepage settings can be configured:
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connecting to MySQL from the command line
How can you connect to MySQL from the command line in a Mac? (i.e. show me the code)
6 Answers
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How to make a JSONP request from Javascript without JQuery?
...ng jQuery or other external library? I would like to use JavaScript itself and then parse the data and make it an object so I could use it. Do I have to use an external library? If not, how can I do it?
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Optional Parameters in Go?
...optional parameters? Or can I just define two functions with the same name and a different number of arguments?
12 Answers
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How to commit changes to a new branch
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You can do a git status to see what is currently staged and what is not.
– John Brodie
Feb 1 '13 at 22:20
5
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What's “tools:context” in Android layout files?
...ge of the activity, such as what the layout theme should be in the preview and where to insert onClick handlers when you make those from a quickfix
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What is a proper naming convention for MySQL FKs?
... users(user_id);
I try to stick with the same field names in referencing and referenced tables, as in user_id in the above example. When this is not practical, I also append the referenced field name to the foreign key name.
This naming convention allows me to "guess" the symbolic name just by l...
Is a RelativeLayout more expensive than a LinearLayout?
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In a talk at Google I/O 2013 (Writing Custom Views for Android), Romain Guy clarified the misunderstanding that caused everyone to start using RelativeLayouts for everything. A RelativeLayout always has to do two measure passes. Overall it is negligible as long as your view hiera...