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retrieve links from web page using python and BeautifulSoup [closed]
...re anything not purely Python isn't allowed.
lxml.html also supports CSS3 selectors so this sort of thing is trivial.
An example with lxml and xpath would look like this:
import urllib
import lxml.html
connection = urllib.urlopen('http://www.nytimes.com')
dom = lxml.html.fromstring(connection.r...
Queries vs. Filters
... user is doing a google type search then I would use a query? If they are selecting possible value from a drop down (eg, invoice count > 50) then this would be a filter?
– Jonesie
Jan 30 '13 at 20:25
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Regular Expression For Duplicate Words
...believe this regex handles more situations:
/(\b\S+\b)\s+\b\1\b/
A good selection of test strings can be found here: http://callumacrae.github.com/regex-tuesday/challenge1.html
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Generate list of all possible permutations of a string
...re x and y is how you define them and r is the number of characters we are selecting from --if I am understanding you correctly. You should definitely generate these as needed and not get sloppy and say, generate a powerset and then filter the length of strings.
The following definitely isn't the b...
What is the shortcut to Auto import all in Android Studio?
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click on key map
Search for "auto-import"
double click on auto import and select add keyboard short cut key
that's all
Note: You can import single missing import using alt+enter which shown in pop up
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Convert data.frame columns from factors to characters
... can create a logical vector of which columns are factors, and use that to selectively apply factor
f <- sapply(bobf, class) == "factor"
bobc[,f] <- lapply(bobc[,f], factor)
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Random color generator
...rs. To ensure the colors are distinct I avoid using a random generator and select "evenly spaced" colors from the rainbow.
This is perfect for creating pop-out markers in Google Maps that have optimal "uniqueness" (that is, no two markers will have similar colors).
function rainbow(numOfSteps, ste...
Set a path variable with spaces in the path in a Windows .cmd file or batch file
...art)
Run the Command Prompt as administrator (Right click on cmd.exe and select run as administrator)
In cmd
setx path "%path%;your new path"
then enter
Check whether the path is taken correctly by typing path and pressing enter
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jQuery - checkbox enable/disable
...roup1"><br>
</form>
You can do this using attribute selectors without introducing the ID and classes but it's slower and (imho) harder to read.
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Find html label associated with a given input
Let's say I have an html form. Each input/select/textarea will have a corresponding <label> with the for attribute set to the id of it's companion. In this case, I know that each input will only have a single label.
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