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Optional Parameters with C++ Macros
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This is pretty cool, but I dont think it would work if I just did PRINT_STRING. In that case there wouldnt be a default print out (and that's actually the case I want to utilize). Still +1 for really cool.
– Cenoc
Jun 15 '10 at 19:53
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How does Python's super() work with multiple inheritance?
...y are listed left to right. In this case, we are looking for __init__. So, if you define
class Third(First, Second):
...
Python will start by looking at First, and, if First doesn't have the attribute, then it will look at Second.
This situation becomes more complex when inheritance starts c...
Build a Basic Python Iterator
...next__(self): # Python 2: def next(self)
self.current += 1
if self.current < self.high:
return self.current
raise StopIteration
for c in Counter(3, 9):
print(c)
This will print:
3
4
5
6
7
8
This is easier to write using a generator, as covered in a p...
What is the difference between re.search and re.match?
...e optional pos
argument regardless of whether a
newline precedes it.
Now, enough talk. Time to see some example code:
# example code:
string_with_newlines = """something
someotherthing"""
import re
print re.match('some', string_with_newlines) # matches
print re.match('someother',
...
Rails 4: assets not loading in production
...hen I was facing this problem changing that line had solved it for me, but now I'm facing it again (I don't know how I keep ending up in these situations.) and this isn't enough. Any more suggestions as to what might be wrong?
– IIllIIll
Nov 29 '15 at 22:45
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Best way to resolve file path too long exception
...iving me this error (I tried looking at google but couldn;t find anything, now if anyone knows any trick to solve this problem please respond otherwise thanks for looking at it)
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Should __init__() call the parent class's __init__()?
...
In Python, calling the super-class' __init__ is optional. If you call it, it is then also optional whether to use the super identifier, or whether to explicitly name the super class:
object.__init__(self)
In case of object, calling the super method is not strictly necessary, sinc...
Can't find the 'libpq-fe.h header when trying to install pg gem
...PostgreSQL/9.1/include/"
gem install pg
After that, it works, because it now knows where to find the missing library. Just replace the path with the right location for your libpq-fe.h
share
|
impr...
Keeping ASP.NET Session Open / Alive
...HttpContext context)
{
context.Session["Heartbeat"] = DateTime.Now;
}
}
The key is to add IRequiresSessionState, otherwise Session won't be available (= null). The handler can of course also return a JSON serialized object if some data should be returned to the calling JavaScript.
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Checking if an instance's class implements an interface?
Given a class instance, is it possible to determine if it implements a particular interface? As far as I know, there isn't a built-in function to do this directly. What options do I have (if any)?
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