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Constructors vs Factory Methods [closed]
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From page 108 of Design Patterns: Elements of Reusable Object-Oriented Software by Gamma, Helm, Johnson, and Vlissides.
Use the Factory Method pattern when
a class can't anticipate the class of objects it must create
a cla...
How do I install from a local cache with pip?
...there a way that I can download a package once and then have pip install from a local cache?
10 Answers
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How to get the name of the current method from code [duplicate]
...l(MethodImplOptions.NoInlining) to GetCurrentMethod only stops that method from being inlined into its caller. It doesn't prevent the calling method itself from being inlined into its own caller etc, etc.
– LukeH
Apr 16 '10 at 12:23
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How to remove stop words using nltk or python
So I have a dataset that I would like to remove stop words from using
12 Answers
12
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Conversion from Long to Double in Java
...could simply do :
double d = (double)15552451L;
Or you could get double from Long object as :
Long l = new Long(15552451L);
double d = l.doubleValue();
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What is the difference between old style and new style classes in Python?
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From New-style and classic classes:
Up to Python 2.1, old-style classes were the only flavour available to the user.
The concept of (old-style) class is unrelated to the concept of type:
if x is an instance of an o...
How do I call one constructor from another in Java?
Is it possible to call a constructor from another (within the same class, not from a subclass)? If yes how? And what could be the best way to call another constructor (if there are several ways to do it)?
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master branch and 'origin/master' have diverged, how to 'undiverge' branches'?
...re pulling it (fetch + merge) (see also "How do you get git to always pull from a specific branch?")
When you have a message like:
"Your branch and 'origin/master' have diverged, # and have 1 and 1 different commit(s) each, respectively."
, check if you need to update origin. If origin is u...
How can I convert an RGB image into grayscale in Python?
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How about doing it with Pillow:
from PIL import Image
img = Image.open('image.png').convert('LA')
img.save('greyscale.png')
Using matplotlib and the formula
Y' = 0.2989 R + 0.5870 G + 0.1140 B
you could do:
import numpy as np
import matplotlib.pypl...
Why should I avoid multiple inheritance in C++?
...re true for multiple inheritance.
Does your object really needs to inherit from another? A Car does not need to inherit from an Engine to work, nor from a Wheel. A Car has an Engine and four Wheel.
If you use multiple inheritance to resolve these problems instead of composition, then you've done som...