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Get class that defined method
How can I get the class that defined a method in Python?
6 Answers
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Rails migrations: Undo default setting for a column
I have the problem, that I have an migration in Rails that sets up a default setting for a column, like this example:
4 Ans...
How is pattern matching in Scala implemented at the bytecode level?
How is pattern matching in Scala implemented at the bytecode level?
3 Answers
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awk without printing newline
I want the variable sum/NR to be printed side-by-side in each iteration. How do we avoid awk from printing newline in each iteration ? In my code a newline is printed by default in each iteration
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Vagrant stuck connection timeout retrying
My vagrant was working perfectly fine last night. I've just turned the PC on, hit vagrant up , and this is what I get:
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Input size vs width
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You can use both. The css style will override the size attribute in browsers that support CSS and make the field the correct width, and for those that don't, it will fall back to the specified number of characters.
Edit: I should have mentioned that the size attribute isn't a precise meth...
How can I make pandas dataframe column headers all lowercase?
I want to make all column headers in my pandas data frame lower case
5 Answers
5
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GCC -g vs -g3 GDB Flag: What is the Difference?
When compiling C source code with either gcc or Clang, I always use the -g flag to generate debugging information for gdb.
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One-line list comprehension: if-else variants
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x if y else z is the syntax for the expression you're returning for each element. Thus you need:
[ x if x%2 else x*100 for x in range(1, 10) ]
The confusion arises from the fact you're using a filter in the first example, but not in the second. In the second example you're only map...
What is a handle in C++?
I have been told that a handle is sort of a pointer, but not, and that it allows you to keep a reference to an object, rather than the object itself. What is a more elaborate explanation?
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