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FileSystemWatcher vs polling to watch for file changes
...chines in the field. We had problems with both local dir and file share. One of the probable causes we came up with was the copy/creation of a lot of files in a short amount of time in the directory.
– Jason Jackson
Oct 27 '08 at 17:26
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How do I use method overloading in Python?
... method overloading not method overriding. And in Python, you do it all in one function:
class A:
def stackoverflow(self, i='some_default_value'):
print 'only method'
ob=A()
ob.stackoverflow(2)
ob.stackoverflow()
You can't have two methods with the same name in Python -- and you...
Python + Django page redirect
...s.generic.simple import redirect_to
urlpatterns = patterns('',
(r'^one/$', redirect_to, {'url': '/another/'}),
#etc...
)
There is more in the generic views documentation.
Credit - Carles Barrobés.
Update #2: Django 1.3+
In Django 1.5 redirect_to no longer exists and has been replac...
Purpose of Unions in C and C++
...g of the rooms (i.e. by making sure different people don't get assigned to one room at the same time), a relatively small hotel can provide accommodations to a relatively large number of people, which is what hotels are for.
That's exactly what union does. If you know that several objects in your p...
ggplot with 2 y axes on each side and different scales
...ed to plot a bar chart showing counts and a line chart showing rate all in one chart, I can do both of them separately, but when I put them together, I scale of the first layer (i.e. the geom_bar ) is overlapped by the second layer (i.e. the geom_line ).
...
Parse a URI String into Name-Value Collection
...
You are forgetting to decode the names and parameters, one reason why it's usually better to let libraries do common tasks.
– Juan Mendes
Nov 27 '12 at 20:52
10...
Why does Double.NaN==Double.NaN return false?
...n described, NaN is unordered, so a numeric comparison operation involving one or two NaNs returns false and any != comparison involving NaN returns true, including x!=x when x is NaN.
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impr...
What does O(log n) mean exactly?
... that:
the choice of the next element on which to perform some action is one of several possibilities, and
only one will need to be chosen.
or
the elements on which the action is performed are digits of n
This is why, for example, looking up people in a phone book is O(log n). You don't need...
How do I find duplicate values in a table in Oracle?
...by COUNT, then use a HAVING clause to find values that appear greater than one time.
SELECT column_name, COUNT(column_name)
FROM table_name
GROUP BY column_name
HAVING COUNT(column_name) > 1;
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How do I keep CSS floats in one line?
I want to have two items on the same line using float: left for the item on the left.
10 Answers
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