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Operation on every pair of element in a list
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Check out product() in the itertools module. It does exactly what you describe.
import itertools
my_list = [1,2,3,4]
for pair in itertools.product(my_list, repeat=2):
foo(*pair)
This is equivalent to:
my_list = [1,2,3,4]
for x in my_list:
for y in my_list:
f...
Batch file include external file for variables
I have a batch file and I want to include external file containing some variables (say configuration variables). Is it possible?
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Matplotlib connect scatterplot points with line - Python
...nse for the points, which you can still plot via scatter, as per my first example. The question does not say anything about a varying line thickness or color, so I think your criticism is a bit unfair, really.
– Hannes Ovrén
Aug 24 '18 at 9:31
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jQuery If DIV Doesn't Have Class “x”
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Use the "not" selector.
For example, instead of:
$(".thumbs").hover()
try:
$(".thumbs:not(.selected)").hover()
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Printing leading 0's in C?
...ou are padding with and the 5 shows the length of the integer number. For example if you use "%02d" (Useful for dates) this would only pad zeros for numbers in the ones column ie.(06 instead of 6). Example 2, "%03d" would pad 2 zeros for one number in the ones column and pad 1 zero for a number in ...
Blocks and yields in Ruby
...ode block in order to perform arbitrary segments of code.
When a method expects a block, it invokes it by calling the yield function.
This is very handy, for instance, to iterate over a list or to provide a custom algorithm.
Take the following example:
I'm going to define a Person class initi...
Finding all possible combinations of numbers to reach a given sum
...m([8, 7])=15
#sum([5, 10])=15
This type of algorithms are very well explained in the following Standford's Abstract Programming lecture - this video is very recommendable to understand how recursion works to generate permutations of solutions.
Edit
The above as a generator function, making i...
git replacing LF with CRLF
Running git on a Windows XP machine, using bash. I exported my project from SVN, and then cloned a bare repository.
20 Answ...
How do I import a Swift file from another Swift file?
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I had the same problem, also in my XCTestCase files, but not in the regular project files.
To get rid of the:
Use of unresolved identifier 'PrimeNumberModel'
I needed to import the base module in the test file. In my case, my target is called 'myproje...
ReSharper Abbreviations List: Where can I modify it?
I am using ReSharper 4.5, and what often happens when I am converting explicit properties into auto-properties, is that I will accidentally chose "Add XX to abbreviations list".
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