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Instance variables vs. class variables in Python
...attern, since I'm the one who introduced it (in 2001, cfr code.activestate.com/recipes/… ;-). But there's nothing wrong, in simple cases, with simply having a single instance with no enforcement.
– Alex Martelli
Apr 26 '10 at 21:49
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When should I use @classmethod and when def method(self)?
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What does the line “#!/bin/sh” mean in a UNIX shell script?
...script, because false returns immediately anyways.
It's implemented as a comment so that anything coming in that line will not "relevant" to the interpreter specified. e.g. all scripting languages tend to understand that a line starting with # is a comment, and will ignore the !/usr/bin/whatever p...
Why does casting int to invalid enum value NOT throw exception?
...of a static check as we can.
{
// The .NET framework doesn't provide a compile-checked
// way to ensure that a type is an enum, so we have to check when the type
// is statically invoked.
static EnumUtil()
{
// Throw Exception on static initialization if the given type is...
Resuming git-svn clone
...s clone operation. After about 6 hours of importing (it's a big repo), my computer went and slept on me. Is there a way to resume the operation without redoing all of the initial work?
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Changes in import statement python3
...ng directory.
@BrenBarn has already explained the star import case. For completeness, I will have to say the same ;).
For example, you need to use a few math functions but you use them only in a single function. In Python 2 you were permitted to be semi-lazy:
def sin_degrees(x):
from math i...
Applying function with multiple arguments to create a new pandas column
...In that case, the @RomanPekar solution works without any problem. I didn't compare the performance.
– Ehsan Sadr
Feb 15 '19 at 1:55
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What's the point of g++ -Wreorder?
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@Mike this is because your compiler (gcc) initializes uninitialized variables to 0, but this isn't something that you should depend on; i being 0 is just a side-effect of the unknown value for uninitialized variables is 0.
– ethan...
How to read the mode field of git-ls-tree's output
... that submodules are listed with a filemode of 160000 and the object type "commit".
– Mark Longair
Aug 2 '10 at 5:15
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