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Unable to install gem - Failed to build gem native extension - cannot load such file — mkmf (LoadErr
...uby1.9.1-dev
Should fix your problem.
Still not working? Try the following after installing ruby-dev:
sudo apt-get install make
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Python set to list
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Your code works with Python 3.2.1 on Win7 x64
a = set(["Blah", "Hello"])
a = list(a)
type(a)
<class 'list'>
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How to sort a list/tuple of lists/tuples by the element at a given index?
... itemgetter instance does not. tl;dr: Always use itemgetter, because speed wins.
– Cecil Curry
Nov 29 '16 at 6:02
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How to split long commands over multiple lines in PowerShell
How do you take a command like the following in PowerShell and split it across multiple lines?
8 Answers
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When to use NSInteger vs. int
...this:
#if __LP64__ || TARGET_OS_EMBEDDED || TARGET_OS_IPHONE || TARGET_OS_WIN32 || NS_BUILD_32_LIKE_64
typedef long NSInteger;
typedef unsigned long NSUInteger;
#else
typedef int NSInteger;
typedef unsigned int NSUInteger;
#endif
With regard to the correct format specifier you should use for each...
How can I open a link in a new window?
...or a specific link, inside that I want to do something similar to the following:
10 Answers
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Python Create unix timestamp five minutes in the future
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It's also more portable than %s flag to strftime (which doesn't work on Windows).
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How to get the first line of a file in a bash script?
...thod doesn't work as written, because read doesn't print anything (so line winds up blank), and also executes in a subshell (so FIRSTLINE gets set to the first line, but only in the subshell, so it's not available afterward). Solution: just use read -r line <filename
– Gord...
How do I make a WinForms app go Full Screen
I have a WinForms app that I am trying to make full screen (somewhat like what VS does in full screen mode).
9 Answers
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What are the differences between json and simplejson Python modules?
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On my Win7 PC (i7 CPU), json (CPython 3.5.0) is 68%|45% faster on simple|complex dumps and 35%|17% on simple|complex loads w.r.t. simplejson v3.8.0 with C speedups using your benchmark code. Therefore, I would not use simplejson an...