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Pythonic way of checking if a condition holds for any element of a list
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any():
if any(t < 0 for t in x):
# do something
Also, if you're going to use "True in ...", make it a generator expression so it doesn't take O(n) memory:
if True in (t < 0 for t in x):
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Can't find the 'libpq-fe.h header when trying to install pg gem
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How can I remove the first line of a text file using bash/sed script?
I need to repeatedly remove the first line from a huge text file using a bash script.
16 Answers
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How to build & install GLFW 3 and use it in a Linux project
Last night I was working late trying to build the GLFW 3 packages for Linux from source. This process took me a very long time, about 3 hours in total, partly because I am unfamiliar with CMake, and partly because I am was unfamiliar with GLFW.
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Ruby: What is the easiest way to remove the first element from an array?
... Best answer since (a) evaluates to the trimmed array, and it works as expected on an empty array: [].drop(1) => []
– fearless_fool
Oct 21 '13 at 0:28
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How would you make a comma-separated string from a list of strings?
...sing python 2.7 (which you shouldn't by now) then using str will raise an exception if any item in the list has unicode.
– kroiz
May 26 at 13:54
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Matplotlib Legends not working
.../users/legend_guide.html#adjusting-the-order-of-legend-items
line, = plot(x,sin(x)) what does comma stand for?
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what exactly is device pixel ratio?
...s is mentioned every article about mobile web, but nowhere I can found an explanation of what exactly does this attribute measure.
Can anyone please elaborate what does queries like this check?
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How do I set default terminal to terminator? [closed]
Using Xubuntu.
7 Answers
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What does extern inline do?
... inline was not part of the language. Many compilers implemented it as an extension, but there were no defined semantics regarding how it worked. GCC was among the first to implement inlining, and introduced the inline, static inline, and extern inline constructs; most pre-C99 compiler generally fol...