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Python strptime() and timezones?
...umentation now also states the following:
When the %z directive is provided to the strptime() method, an aware datetime object will be produced. The tzinfo of the result will be set to a timezone instance.
Note that this doesn't work with %Z, so the case is important. See the following example...
How to determine if a number is a prime with regex?
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You said you understand this part, but just to emphasize, the String generated has a length equal to the number supplied. So the string has three characters if and only if n == 3.
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The first part of the regex says, "any charac...
Group by with multiple columns using lambda
... @Jacob - Anonymous types are immutable classes with properly overriden GetHashCode & Equals methods. They where designed for exactly this kind of use case.
– Enigmativity
Aug 4 '11 at 2:57
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in_array multiple values
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Excellent solution provided you don't need to perform strict comparison.
– faintsignal
Jan 3 '17 at 21:46
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JSON: why are forward slashes escaped?
... when embedding JSON in a <script> tag, which doesn't allow </ inside strings, like Seb points out.
Some of Microsoft's ASP.NET Ajax/JSON API's use this loophole to add extra information, e.g., a datetime will be sent as "\/Date(milliseconds)\/". (Yuck)
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What is the meaning of “… …” token? i.e. double ellipsis operator on parameter pack
........." token. You can check, that the following code compiles fine [via ideone.com].
2 Answers
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What are “first class” objects?
When are objects or something else said to be "first class" in a given programming language, and why? In what do they differ from languages where they are not?
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Rich vs Anemic Domain Model [closed]
I am deciding if I should use a Rich Domain Model over an Anemic Domain Model, and looking for good examples of the two.
10...
printf with std::string?
...e and typesafe. In fact, when you're writing C++, you generally want to avoid printf entirely -- it's a leftover from C that's rarely needed or useful in C++.
As to why you should use cout instead of printf, the reasons are numerous. Here's a sampling of a few of the most obvious:
As the question...
How to read a .xlsx file using the pandas Library in iPython?
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Hmmm if you said mysql - I'd know the answer, postgres may just work similarly... not 100% though. (Would be a good question.)
– Andy Hayden
Jun 3 '13 at 21:54
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