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Check if a program exists from a Makefile
... $(error "dot is not available please install graphviz")
endif
dot -Tpdf -o pres.pdf pres.dot
It works beautifully because "command -v" doesn't print anything if the executable is not available, so the variable DOT never gets defined and you can just check it whenever you want in your code....
Case conventions on element names?
...ibutes and elements: niem.gov/documentsdb/Documents/Technical/NIEM-NDR-1-3.pdf
– e1i45
Mar 14 '14 at 9:42
I know it's ...
How can I change image tintColor in iOS and WatchKit
...
Swift 4
Change tint of UIImage SVG / PDF, that work for image with unique color :
import Foundation
// MARK: - UIImage extensions
public extension UIImage {
//
/// Tint Image
///
/// - Parameter fillColor: UIColor
/// - Returns: Imag...
How to remove new line characters from a string?
...
72
You want to use String.Replace to remove a character.
s = s.Replace("\n", String.Empty);
s = s...
Removing index column in pandas when reading a csv
...s Corbett
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answered Nov 20 '13 at 21:53
Dan AllanDan Allan
27.4k66 go...
How to use `string.startsWith()` method ignoring the case?
...:35
Gili
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answered Oct 3 '13 at 8:18
Rohit JainRo...
Downloading a picture via urllib and python
...
72
Just for the record, using requests library.
import requests
f = open('00000001.jpg','wb')
f.w...
EntityType has no key defined error
...eRaja - Danny PflughoeftBlueRaja - Danny Pflughoeft
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...
How big can a user agent string get?
...nswer has a good example of this happening). In fact, the EFF did a study (pdf) about it.
– patridge
Mar 8 '11 at 20:29
1
...
Drop all duplicate rows across multiple columns in Python Pandas
...
72
Just want to add to Ben's answer on drop_duplicates:
keep : {‘first’, ‘last’, False}, ...