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join list of lists in python [duplicate]
Is the a short syntax for joining a list of lists into a single list( or iterator) in python?
15 Answers
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CSS strikethrough different color from text?
...>
</a>
</body>
(IE7 seems to require some href be set on the <a> before :hover has an effect; FF and WebKit-based browsers do not.)
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How to represent multiple conditions in a shell if statement?
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Classic technique (escape metacharacters):
if [ \( "$g" -eq 1 -a "$c" = "123" \) -o \( "$g" -eq 2 -a "$c" = "456" \) ]
then echo abc
else echo efg
fi
I've enclosed the references to $g in double quotes; that's good practice, in general. Strictly, the parentheses are...
Windows path in Python
What is the best way to represent a Windows directory, for example "C:\meshes\as" ? I have been trying to modify a script but it never works because I can't seem to get the directory right, I assume because of the '\' acting as escape character?
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Is right click a Javascript event?
... // cancel default menu
}
As for the mouse events themselves, browsers set a property to the event object that is accessible from the event handling function:
document.body.onclick = function (e) {
var isRightMB;
e = e || window.event;
if ("which" in e) // Gecko (Firefox), WebKit ...
Can a decorator of an instance method access the class?
...EP: python.org/dev/peps/pep-0232 Not sure it's possible because you can't set an attribute on a class/static method and I think they gobble up any custom function attributes when they are applied to a function.
– Carl G
Apr 14 '10 at 0:42
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Batch equivalent of Bash backticks
...edirecting the output to a file first. For example:
echo zz > bla.txt
set /p VV=<bla.txt
echo %VV%
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Override devise registrations controller
...ctly the same thing (I just have Organization instead of Company).
If you set properly your nested form, at model and view level, everything works like a charm.
My User model:
class User < ActiveRecord::Base
# Include default devise modules. Others available are:
# :token_authenticatable, ...
Printing everything except the first field with awk
...am BN
Explanation:
$(NF+1)=$1: Generator of a "new" last field.
$1="": Set the original first field to null
sub(FS,""): After the first two actions {$(NF+1)=$1;$1=""} get rid of the first field separator by using sub. The final print is implicit.
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How to install trusted CA certificate on Android device?
... System-installed certificates can be managed on the Android device in the Settings -> Security -> Certificates -> 'System'-section, whereas the user trusted certificates are manged in the 'User'-section there. When using user trusted certificates, Android will force the user of the Android...