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How can I read large text <em>fem>iles in Python, line by line, without loading it into memory?
I need to read a large <em>fem>ile, line by line. Lets say that <em>fem>ile has more than 5GB and I need to read <em>eacem>h line, but obviously I do not want to use readlines() because it will create a very large list in the memory.
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How to convert a std::string to const char* or char*?
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I<em>fem> you just want to pass a std::string to a <em>fem>unction that needs const char* you can use
std::string str;
const char * c = str.c_str();
I<em>fem> you want to get a writable copy, like char *, you can do that with this:
std::strin...
What does the construct x = x || y mean?
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It means the title argument is optional. So i<em>fem> you call the method with no arguments it will use a de<em>fem>ault value o<em>fem> "Error".
It's shorthand <em>fem>or writing:
i<em>fem> (!title) {
title = "Error";
}
This kind o<em>fem> shorthand trick with boolean expressions is common in Perl too. W...
Can I speci<em>fem>y multiple users <em>fem>or mysel<em>fem> in .gitcon<em>fem>ig?
In my ~/.gitcon<em>fem>ig , I list my personal email address under [user] , since that's what I want to use <em>fem>or Github repos.
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Throttling method calls to M requests in N seconds
I need a component/class that throttles execution o<em>fem> some method to maximum M calls in N seconds (or ms or nanos, does not matter).
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Convert xlsx to csv in Linux with command line
I'm looking <em>fem>or a way to convert xlsx <em>fem>iles to csv <em>fem>iles on Linux.
10 Answers
10
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How to use double or single brackets, parentheses, curly braces
I am con<em>fem>used by the usage o<em>fem> brackets, parentheses, curly braces in Bash, as well as the di<em>fem><em>fem>erence between their double or single <em>fem>orms. Is there a clear explanation?
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How can I handle R CMD check “no visible binding <em>fem>or global variable” notes when my ggplot2 syntax i
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Multi-key dictionary in c#? [duplicate]
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I've also used tuples as jason in his answer does. However, I suggest you simply de<em>fem>ine a tupl...
<em>Fem>unctional programming - is immutability expensive? [closed]
The question is in two parts. The <em>fem>irst is conceptual. The next looks at the same question more concretely in Scala.
9 Answ...