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Getting distance between two points based on latitude/longitude
...ither convert the numbers manually to radians, or use the radians function from the math module:
from math import sin, cos, sqrt, atan2, radians
# approximate radius of earth in km
R = 6373.0
lat1 = radians(52.2296756)
lon1 = radians(21.0122287)
lat2 = radians(52.406374)
lon2 = radians(16.9251681...
How can I tell if one commit is a descendant of another commit?
...t merge-base A B is equal to git rev-parse --verify A (then A is reachable from B), or if it is git rev-parse --verify B (then B is reachable from A). git rev-parse is here needed to convert from commit name to commit SHA-1 / commit id.
Using git rev-list like in VonC answer is also possibility.
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Delete all documents from index/type without deleting type
I know one can delete all documents from a certain type via deleteByQuery.
15 Answers
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Use of Finalize/Dispose method in C#
...h managed resources (in fact, you should NOT try to access managed objects from within your finalizer (other than "this"), because there is no guaranteed order in which the GC will clean up objects. Also, if you are using .Net 2.0 or better, you can (and should) use SafeHandles to wrapper unmanaged...
Get properties and values from unknown object
From the world of PHP I have decided to give C# a go. I've had a search but can't seem to find the answer of how to do the equivalent to this.
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Can't import my own modules in Python
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In your particular case it looks like you're trying to import SomeObject from the myapp.py and TestCase.py scripts. From myapp.py, do
import SomeObject
since it is in the same folder. For TestCase.py, do
from ..myapp import SomeObject
However, this will work only if you are importing TestCas...
Unique fields that allow nulls in Django
...o actually protect data integrity. Data may be entered via import scripts, from the shell, through an API or any other means. Much better to override the save() method than to make custom cases for every form that might touch the data.
– shacker
Jul 27 '16 at 1...
Create a branch in Git from another branch
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If you want create a new branch from any of the existing branches in Git, just follow the options.
First change/checkout into the branch from where you want to create a new branch. For example, if you have the following branches like:
master
dev
branch1
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How to remove item from array by value? [duplicate]
Is there a method to remove an item from a JavaScript array?
37 Answers
37
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Why was the switch statement designed to need a break?
...case using a goto.
It's too bad Java didn't take the opportunity to break from the C semantics.
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