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List comprehension rebinds names even after scope of comprehension. Is this right?
...change in Python
3, to improve equivalence between list
comprehensions and generator
expressions. In Python 2, the list
comprehension "leaks" the loop control
variable into the surrounding scope:
x = 'before'
a = [x for x in 1, 2, 3]
print x # this prints '3', not 'before'
This was ...
MySQL skip first 10 results
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more easy to understand than limit 10,10
– shellbye
May 5 '16 at 6:11
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How do I include a path to libraries in g++
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@Fred, yes, g++ understands a whole bunch of environment variables which can be used to control the include path, library path, etc.
– Ernest Friedman-Hill
Mar 16 '13 at 3:09
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Compile error: “g++: error trying to exec 'cc1plus': execvp: No such file or directory”
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I don't know why but i just renamed my source file COLARR.C to colarr.c and the error vanished!
probably you need this
sudo apt-get install g++
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do N times (declarative syntax)
...g
To complete this questions, here's a way to do call something() 1, 2 and 3 times respectively:
It's 2017, you may use ES6:
[1,2,3].forEach(i => Array(i).fill(i).forEach(_ => {
something()
}))
or in good old ES5:
[1,2,3].forEach(function(i) {
Array(i).fill(i).forEach(function() {...
Convert DataFrame column type from string to datetime, dd/mm/yyyy format
... answered Jun 16 '13 at 15:18
Andy HaydenAndy Hayden
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How can I redirect HTTP requests made from an iPad?
... the edits take effect. On Ubuntu that's sudo service squid3 reload. Also--and maybe this is a config problem specific to my dev server--on my iPad I have to manually enter the http:// for address resolution to work correctly.
– Andy Giesler
Jun 4 '14 at 15:39
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TypeScript type signatures for functions with variable argument counts
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@AlexanderMills func is the name of the function.
– Bob Vale
Jul 30 '17 at 21:49
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Remove portion of a string after a certain character
...n plain english: Give me the part of the string starting at the beginning and ending at the position where you first encounter the deliminator.
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How to set std::tuple element by index?
... postfix: "",
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