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List comprehension rebinds names even after scope of comprehension. Is this right?
...omprehensions leak the loop control variable in Python 2 but not in Python 3. Here's Guido van Rossum (creator of Python) explaining the history behind this:
We also made another change in Python
3, to improve equivalence between list
comprehensions and generator
expressions. In Python 2,...
Programmatically creating Markdown tables in R with KnitR
...
Now knitr (since version 1.3) package include the kable function for a creation tables:
> library(knitr)
> kable(head(iris[,1:3]), format = "markdown")
| Sepal.Length| Sepal.Width| Petal.Length|
|-------------:|------------:|-------------:|
|...
Array initializing in Scala
...
143
scala> val arr = Array("Hello","World")
arr: Array[java.lang.String] = Array(Hello, World)
...
Python __str__ versus __unicode__
... method:
def __str__(self):
return unicode(self).encode('utf-8')
In 3.0, str contains characters, so the same methods are named __bytes__() and __str__(). These behave as expected.
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im...
What is non-blocking or asynchronous I/O in Node.js?
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322
Synchronous vs Asynchronous
Synchronous execution usually refers to code executing in sequenc...
Convert DateTime to String PHP
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edited Dec 3 '12 at 19:07
answered May 13 '12 at 3:17
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Spring 3 MVC accessing HttpRequest from controller
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3 Answers
3
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How to read keyboard-input?
... # If you use Python 2
input('Enter your input:') # If you use Python 3
and if you want to have a numeric value
just convert it:
try:
mode=int(raw_input('Input:'))
except ValueError:
print "Not a number"
s...