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Google Authenticator implementation in Python

I am trying to use one-time passwords that can be generated using Google Authenticator application . 2 Answers ...
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Static member initialization in a class template

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How does Rails keep track of which migrations have run for a database?

According to Rails doc: http://guides.rubyonrails.org/migrations.html 1 Answer 1 ...
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ipython notebook clear cell output in code

...ebook, I have a while loop that listens to a Serial port and print the received data in real time. 3 Answers ...
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How to make Regular expression into non-greedy?

I'm using jQuery. I have a string with a block of special characters (begin and end). I want get the text from that special characters block. I used a regular expression object for in-string finding. But how can I tell jQuery to find multiple results when have two special character or more? ...
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Resolving conflicts: how to accept “their” changes automatically?

When merging conflicting changes using hg merge , Mercurial inserts a set of markers into the files to be merged in my working copy like this: ...
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class name and method name dropdown list is missing (visual studio setting)

Does anyone know how to get my class name and method name dropdown lists again? It's the dropdown lists that are usually above the code. It's just a setting but i can't seem to find it. I don't want to reset my setting btw. I shouldn't have to. ...
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How can I convert a file pointer ( FILE* fp ) to a file descriptor (int fd)?

I have a FILE * , returned by a call to fopen() . I need to get a file descriptor from it, to make calls like fsync(fd) on it. What's the function to get a file descriptor from a file pointer? ...
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How do you create optional arguments in php?

In the PHP manual, to show the syntax for functions with optional parameters, they use brackets around each set of dependent optional parameter. For example, for the date() function, the manual reads: ...
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Rails 4: before_filter vs. before_action

In rails >4.0.0 generators creates CRUD operations with before_action not before_filter . It seems to do the same thing. So what's the difference between these two? ...