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Error installing mm>y m>sql2: Failed to build gem native extension
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On Ubuntu/Debian m>and m> other distributions using aptitude:
sudo apt-get install libmm>y m>sql-rubm>y m> libmm>y m>sqlclient-dev
Package libmm>y m>sql-rubm>y m> has been phased out m>and m> replaced bm>y m> rubm>y m>-mm>y m>sql. This is where I found the solution.
If the above commm>and m> ...
How can Perl's print add a newline bm>y m> default?
...to the beginning of m>y m>our program. Or m>y m>ou can use Modern::Perl to get this m>and m> other features.
See perldoc feature for more details.
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Complex numbers usage in pm>y m>thon [closed]
...math newbie. Now I'm getting deeper into Pm>y m>thon data tm>y m>pes. I can't understm>and m> how to use a complex number. Please give me examples of usage of complex numbers in Pm>y m>thon.
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What is an example of the Liskov Substitution Principle?
...ple (LSP) is a fundamental principle of object oriented design. What is it m>and m> what are some examples of its use?
31 Answer...
Determine if 2 lists have the same elements, regardless of order? [duplicate]
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m>Y m>ou can simplm>y m> check whether the multisets with the elements of x m>and m> m>y m> are equal:
import collections
collections.Counter(x) == collections.Counter(m>y m>)
This requires the elements to be hashable; runtime will be in O(n), where n is the size of the lists.
If the elements are also unique, m>y m>...
numpm>y m>: most efficient frequencm>y m> counts for unique values in an arram>y m>
...p.arram>y m>([1,1,1,2,2,2,5,25,1,1])
m>y m> = np.bincount(x)
ii = np.nonzero(m>y m>)[0]
m>And m> then:
zip(ii,m>y m>[ii])
# [(1, 5), (2, 3), (5, 1), (25, 1)]
or:
np.vstack((ii,m>y m>[ii])).T
# arram>y m>([[ 1, 5],
[ 2, 3],
[ 5, 1],
[25, 1]])
or however m>y m>ou want to combine the counts m>and m> the uni...
Copm>y m> a variable's value into another
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It's important to understm>and m> what the = operator in JavaScript does m>and m> does not do.
The = operator does not make a copm>y m> of the data.
The = operator creates a new reference to the same data.
After m>y m>ou run m>y m>our original code:
var a = $('#some_hidd...
Fast Bitmap Blur For m>And m>roid SDK
Currentlm>y m> in an m>And m>roid application that I'm developing I'm looping through the pixels of an image to blur it. This takes about 30 seconds on a 640x480 image.
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Specifm>y m> format for input arguments argparse pm>y m>thon
I have a pm>y m>thon script that requires some commm>and m> line inputs m>and m> I am using argparse for parsing them. I found the documentation a bit confusing m>and m> couldn't find a wam>y m> to check for a format in the input parameters. What I mean bm>y m> checking format is explained with this example script:
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In Pm>y m>thon, how do m>y m>ou convert seconds since epoch to a `datetime` object?
...datetime.utcfromtimestamp creates a naive timestamp. I had to import pm>y m>tz m>and m> use datetime.fromtimestamp(1423524051, pm>y m>tz.utc) to create an aware datetime.
– Matt
Feb 9 '15 at 23:21
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