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Select DISTINCT individual columns in django?
I'm curious if there's any way to do a query in Django that's not a " SELECT * FROM... " underneath. I'm trying to do a " SELECT DISTINCT columnName FROM ... " instead.
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Why does C++ not allow inherited friendship?
... being forbidden for obvious reasons (I say this only to head off simple FAQ quote answers), but the lack of something along the lines of virtual friend class Foo; puzzles me. Does anyone know the historical background behind this decision? Was friendship really just a limited hack that has sinc...
O(nlogn) Algorithm - Find three evenly spaced ones within binary string
I had this question on an Algorithms test yesterday, and I can't figure out the answer. It is driving me absolutely crazy, because it was worth about 40 points. I figure that most of the class didn't solve it correctly, because I haven't come up with a solution in the past 24 hours.
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Build query string for System.Net.HttpClient get
If I wish to submit a http get request using System.Net.HttpClient there seems to be no api to add parameters, is this correct?
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How can I recover the return value of a function passed to multiprocessing.Process?
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I would recommend using a multiprocessing.Queue, rather than a Manager here. Using a Manager requires spawning an entirely new process, which is overkill when a Queue would do.
– dano
Apr 19 '15 at 0:54
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Python element-wise tuple operations like sum
... tuple([item1 + item2 for item1, item2 in zip(a, b)]) would be the equivalent as a list comprehension.
– Adam Parkin
Feb 13 '12 at 21:20
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urlencode vs rawurlencode?
...ode is the way to go. The one exception is legacy systems which expect the query string to follow form-encoding style of spaces encoded as + instead of %20 (in which case you need urlencode).
rawurlencode follows RFC 1738 prior to PHP 5.3.0 and RFC 3986 afterwards (see http://us2.php.net/manual/en/...
Why does ReSharper want to use 'var' for everything?
...out I opened up a recent ASP.NET MVC project. One of the first and most frequent things I've noticed it suggesting is to change most/all my explicit declarations to var instead. For example:
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What is 'Pattern Matching' in functional languages?
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Understanding pattern matching requires explaining three parts:
Algebraic data types.
What pattern matching is
Why its awesome.
Algebraic data types in a nutshell
ML-like functional languages allow you define simple data types called "disjoint unions" o...
What's the best way to parse command line arguments? [closed]
...ere's a typical line to add an option to your parser:
parser.add_option('-q', '--query',
action="store", dest="query",
help="query string", default="spam")
It pretty much speaks for itself; at processing time, it will accept -q or --query as options, store the argument in ...