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What is the official “preferred” way to install pip and virtualenv systemwide?
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If you can install the latest Python (2.7.9 and up) Pip is now bundled with it.
See: https://do...
How to use “not” in xpath?
...ts more or less the same.
– Ali
Sep 3 '19 at 13:07
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How to remove globally a package from Composer?
...ectory.
Read the related documentation here: http://getcomposer.org/doc/03-cli.md#global
COMPOSER_HOME depends on your system (on Linux it's ~/.composer), see http://getcomposer.org/doc/03-cli.md#composer-home for more details.
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Why are margin/padding percentages in CSS always calculated against width?
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answered Jun 12 '12 at 21:03
Ryan KinalRyan Kinal
15.6k44 gold badges3939 silver badges6262 bronze badges
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Format numbers to strings in Python
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Starting with Python 3.6, formatting in Python can be done using formatted string literals or f-strings:
hours, minutes, seconds = 6, 56, 33
f'{hours:02}:{minutes:02}:{seconds:02} {"pm" if hours > 12 else "am"}'
or the str.format function s...
How does the socket API accept() function work?
...ients, 10.0.0.1 and 10.0.0.2.
10.0.0.1 opens a connection on local port 1234 and connects to the server. Now the server has one socket identified as follows:
10.0.0.1:1234 - 192.168.1.1:80
Now 10.0.0.2 opens a connection on local port 5678 and connects to the server. Now the server has two s...
Finding which process was killed by Linux OOM killer
...sed on some heuristics (it's an interesting read: http://lwn.net/Articles/317814/ ).
4 Answers
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Warning as error - How to rid these
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answered Mar 26 '10 at 2:43
Michael PetrottaMichael Petrotta
55.9k1414 gold badges135135 silver badges173173 bronze badges
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Regex group capture in R with multiple capture-groups
... in the match (and one for the whole match):
> s = c("(sometext :: 0.1231313213)", "(moretext :: 0.111222)")
> str_match(s, "\\((.*?) :: (0\\.[0-9]+)\\)")
[,1] [,2] [,3]
[1,] "(sometext :: 0.1231313213)" "sometext" "0.1231313213"
[2,] "(moretext ::...
What's Up with Logging in Java? [closed]
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edited May 23 '17 at 11:47
Community♦
111 silver badge
answered Dec 10 '08 at 1:50
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