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What is the most efficient way of finding all the factors of a number in Python?
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The reduce(list.__add__, ...) is taking the little lists of [fac1, fac2] and joining them together in one long list.
The [i, n/i] for i in range(1, int(sqrt(n)) + 1) if n % i == 0 returns a pair of factors if the remainder when you divide n by the smaller one is zero (it doesn't need to check the...
Fastest Way to Find Distance Between Two Lat/Long Points
...have just under a million locations in a mysql database all with longitude and latitude information.
15 Answers
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How do I get the different parts of a Flask request's url?
... if the request came from the localhost:5000 or foo.herokuapp.com host and what path was requested. How do I get this information about a Flask request?
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Is there a more elegant way of adding an item to a Dictionary safely?
... Add if the existence of the key indicates a bug (so you want it to throw) and the indexer otherwise. (It's a bit like the difference between casting and using as for reference conversions.)
If you're using C# 3 and you have a distinct set of keys, you can make this even neater:
var currentViews =...
Sample settings.xml for maven
... implied. See the License for the
specific language governing permissions and limitations
under the License.
-->
Main docs and top:
<!--
| This is the configuration file for Maven. It can be specified at two levels:
|
| 1. User Level. This settings.xml file provides configuration for a s...
What are the primary differences between Haskell and F#? [closed]
I've searched on the Internet for comparisons between F# and Haskell but haven't found anything really definitive. What are the primary differences and why would I want to choose one over the other?
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How to re import an updated package while in Python Interpreter? [duplicate]
I often test my module in the Python Interpreter, and when I see an error, I quickly update the .py file. But how do I make it reflect on the Interpreter ? So, far I have been exiting and reentering the Interpreter because re importing the file again is not working for me.
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What version of Visual Studio is Python on my computer compiled with?
...912 is probably Visual Studio 2018. Perhaps download the community edition and double check.
– Ben
Dec 8 '18 at 5:41
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How to do a batch insert in MySQL
...e. What is the best way to do this in a query? Should I just make a loop and insert one record per iteration? Or is there a better way?
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Create objective-c class instance by name?
...he class exists.
For example, in your .h:
@property Class NameOfClass;
and then in your .m:
id object = [[NameOfClass alloc] init];
If you mistyped the class name or if it doesn't exist, you'll get an error at compile time. Also I think this is cleaner code.
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