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What are “named tuples” in Python?
...n 3.0, although there is a recipe for implementation in Python 2.4.
For example, it is common to represent a point as a tuple (x, y). This leads to code like the following:
pt1 = (1.0, 5.0)
pt2 = (2.5, 1.5)
from math import sqrt
line_length = sqrt((pt1[0]-pt2[0])**2 + (pt1[1]-pt2[1])**2)
Using...
Facebook Graph API v2.0+ - /me/friends returns empty, or only friends who also use my application
... && l.GetAttributeValue("data-hovercard").Contains("user.php")
&& l.Text != null
).LastOrDefault();
if (lastLink == null || previousLastLink == lastLink)
{
break;
}
var ieElement = lastLink.Native...
Should MySQL have its timezone set to UTC?
...negative values from FROM_UNIXTIME
Sources:
https://bugs.mysql.com/bug.php?id=68861
http://dev.mysql.com/doc/refman/5.0/en/date-and-time-functions.html
http://dev.mysql.com/doc/refman/5.1/en/datetime.html
http://en.wikipedia.org/wiki/Coordinated_Universal_Time
http://shafiqissani.wordpress.com/2...
How to use NSJSONSerialization
I have a JSON string (from PHP's json_encode() that looks like this:
12 Answers
12
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Are there benefits of passing by pointer over passing by reference in C++?
... func2 passes "by pointer" - no need to look up function definition
func2(&mySprite);
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How to compare two colors for similarity/difference
...ing trouble figuring out how you want to compare them, take some pairs of sample colors and compare them mentally, then try to justify/explain to yourself why they are similar/different.
Once you know which properties/components of the colors you want to compare, then you need to figure out how to...
Portable way to get file size (in bytes) in shell?
... One would guess the portable ls -ln FILE | { read _ _ _ _ size _ && echo "$size"; } needs not fork for the second step of the pipeline, as it uses just built-ins, but Bash 4.2.37 on Linux forks twice (still only one execve, though).
– Palec
Jul...
What does functools.wraps do?
... def with_logging(*args, **kwargs):
print(func.__name__ + " was called")
return func(*args, **kwargs)
return with_logging
then when you say
@logged
def f(x):
"""does some math"""
return x + x * x
it's exactly the same as saying
def f(x):
"""does some math"""
...
Best way to iterate through a Perl array
...
@ikegami True to your champion style - great answer :)
– skeetastax
Aug 22 at 1:37
...
Why is “while ( !feof (file) )” always wrong?
...t always first try the operation and then respond to success or failure.
Examples
In each of the examples, note carefully that we first attempt the I/O operation and then consume the result if it is valid. Note further that we always must use the result of the I/O operation, though the result takes ...