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Rspec doesn't see my model Class. uninitialized constant error
I'm writing tests on Rspec for my models in Ruby on Rails application.
And I receive this error while starting 'rspec spec'
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How do I get indices of N maximum values in a NumPy array?
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The simplest I've been able to come up with is:
In [1]: import numpy as np
In [2]: arr = np.array([1, 3, 2, 4, 5])
In [3]: arr.argsort()[-3:][::-1]
Out[3]: array([4, 3, 1])
This involves a complete sort of the array. I wonder if numpy provides a built-in way t...
What is the difference between JSON and Object Literal Notation?
... the main difference between a JavaScript object defined by using Object Literal Notation and JSON object ?
10 Answers
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Generate a heatmap in MatPlotLib using a scatter data set
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edited Oct 27 '16 at 23:21
Michael Mauderer
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Execute the setInterval function without delay the first time
It's there a way to configure the setInterval method of javascript to execute the method immediately and then executes with the timer
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Zip lists in Python
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Out[4]: 3
Of course, this won't work if the lists were empty to start with.
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How to download image using requests
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You can either use the response.raw file object, or iterate over the response.
To use the response.raw file-like object will not, by default, decode compressed responses (with GZIP or deflate). You can force it to decompress for you ...
How to find elements by class
I'm having trouble parsing HTML elements with "class" attribute using Beautifulsoup. The code looks like this
16 Answers
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SQLAlchemy: cascade delete
I must be missing something trivial with SQLAlchemy's cascade options because I cannot get a simple cascade delete to operate correctly -- if a parent element is a deleted, the children persist, with null foreign keys.
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How to prevent XSS with HTML/PHP?
How do I prevent XSS (cross-site scripting) using just HTML and PHP?
9 Answers
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