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How can I check whether a numpy array is empty or not?
...an always take a look at the .size attribute. It is defined as an integer, and is zero (0) when there are no elements in the array:
import numpy as np
a = np.array([])
if a.size == 0:
# Do something when `a` is empty
...
What is App.config in C#.NET? How to use it?
...onfig is an XML file with many predefined configuration sections available and support for custom configuration sections. A "configuration section" is a snippet of XML with a schema meant to store some type of information.
Overview (MSDN)
Connection String Configuration (MSDN)
Settings can be co...
Should I use Python 32bit or Python 64bit
...ation. Must I use Python 64bit? What are the differences between the 32bit and 64bit Python versions anyway? Do different Python packages (such as south, django, mysqldb etc) support only 32bit/64bit?
...
Placement of the ng-app directive (html vs body)
I recently reviewed the code for a webapp built with angular and found that it was written with the ng-app="myModule" directive placed on the <body> tag. When learning angular, I've only ever seen it used on the <html> tag, as recommended by the angular docs here , here , and in...
How to give System property to my test via Gradle and -D
...
The -P flag is for gradle properties, and the -D flag is for JVM properties. Because the test may be forked in a new JVM, the -D argument passed to gradle will not be propagated to the test - it sounds like that is the behavior you are seeing.
You can use the sy...
How to customize a requirements.txt for multiple environments?
I have two branches, Development and Production. Each has dependencies, some of which are different. Development points to dependencies that are themselves in development. Likewise for Production. I need to deploy to Heroku which expects each branch's dependencies in a single file called 'requiremen...
What is the difference between ndarray and array in numpy?
What is the difference between ndarray and array in Numpy? And where can I find the implementations in the numpy source code?
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What is the difference between the $parse, $interpolate and $compile services?
What is the difference between $parse , $interpolate and $compile services?
For me they all do the same thing: take template and compile it to template-function.
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Rotating a point about another point (2D)
...onizer exactly the same, just use your point subtraction/addition routines and your vector*matrix function for rotation.
– Nils Pipenbrinck
Oct 2 '17 at 4:37
8
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How to use RSpec's should_raise with any kind of exception?
...e_method }.should raise_error
See the documentation (for RSpec 1 syntax) and RSpec 2 documentation for more.
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