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What is the difference between List<? super T> and List<? extends T> ?
14 Answers
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Samples of Scala and Java code where Scala code looks simpler/has fewer lines?
I need some code samples (and I also really curious about them) of Scala and Java code which show that Scala code is more simple and concise then code written in Java (of course both samples should solve the same problem).
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Rolling or sliding window iterator?
I need a rolling window (aka sliding window) iterable over a sequence/iterator/generator. Default Python iteration can be considered a special case, where the window length is 1. I'm currently using the following code. Does anyone have a more Pythonic, less verbose, or more efficient method for d...
Retrieve the commit log for a specific line in a file?
...w the evolution of a range of lines.
For example, suppose you look at git blame's output. Here -L 150,+11 means "only look at the lines 150 to 150+11":
$ git blame -L 150,+11 -- git-web--browse.sh
a180055a git-web--browse.sh (Giuseppe Bilotta 2010-12-03 17:47:36 +0100 150) die "The brow...
Get underlined text with Markdown
I am using BlueCloth as a Markdown library for Ruby, and I can't find any syntax for getting a text underlined. What is it?
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How to add property to a class dynamically?
The goal is to create a mock class which behaves like a db resultset.
24 Answers
24
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Return multiple columns from pandas apply()
...ataFrame, df_test . It contains a column 'size' which represents size in bytes. I've calculated KB, MB, and GB using the following code:
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Divide a number by 3 without using *, /, +, -, % operators
How would you divide a number by 3 without using * , / , + , - , % , operators?
48 Answers
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Use images instead of radio buttons
If I have a radio group with buttons:
8 Answers
8
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How to convert an array of strings to an array of floats in numpy?
...erator now.)
However, if it's already a numpy array of strings, there's a better way. Use astype().
import numpy as np
x = np.array(['1.1', '2.2', '3.3'])
y = x.astype(np.float)
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