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Can iterators be reset in Python?
...l answers rightly remarked, in the specific case of csv you can also .seek(0) the underlying file object (a rather special case). I'm not sure that's documented and guaranteed, though it does currently work; it would probably be worth considering only for truly huge csv files, in which the list I ...
How to let PHP to create subdomain automatically for each user?
...uld let you do something like this:
*.mywebsite.com IN A 127.0.0.1
127.0.0.1 would be the IP address of your webserver. The method of actually adding the record will depend on your host.
Doing it like http://mywebsite.com/user would be a lot easier to set up if it's an option.
T...
Is there a difference between `continue` and `pass` in a for loop in python?
...
407
Yes, they do completely different things. pass simply does nothing, while continue goes on wit...
How to group dataframe rows into list in pandas groupby?
...'A','A','B','B','B','C'], 'b':[1,2,5,5,4,6]})
df
Out[1]:
a b
0 A 1
1 A 2
2 B 5
3 B 5
4 B 4
5 C 6
In [2]: df.groupby('a')['b'].apply(list)
Out[2]:
a
A [1, 2]
B [5, 5, 4]
C [6]
Name: b, dtype: object
In [3]: df1 = df.groupby('a')['b'].apply(list).reset_in...
Reading string from input with space character? [duplicate]
...
Use:
fgets (name, 100, stdin);
100 is the max length of the buffer. You should adjust it as per your need.
Use:
scanf ("%[^\n]%*c", name);
The [] is the scanset character. [^\n] tells that while the input is not a newline ('\n') take inpu...
Can't install RMagick 2.13.1. Can't find MagickWand.h.
...
70
I had a similar issue with running
$ gem install rmagick
First of all, do you have imagemagic...
When should I use double instead of decimal?
...
310
I think you've summarised the advantages quite well. You are however missing one point. The deci...
Why is `std::move` named `std::move`?
...eadable.
The history of move dates back to the original move proposal in 2002. This paper first introduces the rvalue reference, and then shows how to write a more efficient std::swap:
template <class T>
void
swap(T& a, T& b)
{
T tmp(static_cast<T&&>(a));
a = s...
I want to delete all bin and obj folders to force all projects to rebuild everything
... xargs may split into multiple entries. If your shell supports them, -print0 and -0 will work around this short-coming, so the above examples become:
find . -iname "bin" -print0 | xargs -0 rm -rf
find . -iname "obj" -print0 | xargs -0 rm -rf
and:
find . -iname "bin" -o -iname "obj" -print0 | xar...
Java: How to test methods that call System.exit()?
...quals("Exit status", 42, e.status);
}
}
}
Update December 2012:
Will proposes in the comments using System Rules, a collection of JUnit(4.9+) rules for testing code which uses java.lang.System.
This was initially mentioned by Stefan Birkner in his answer in December 2011.
System.ex...