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How to install Boost on Ubuntu
...gex support:
sudo apt-get update
sudo apt-get install build-essential g++ python-dev autotools-dev libicu-dev build-essential libbz2-dev libboost-all-dev
Boost's bootstrap setup:
./bootstrap.sh --prefix=/usr/
Then build it with:
./b2
and eventually install it:
sudo ./b2 install
...
Why doesn't C++ have a garbage collector?
...ge collector in the way? Other things would be affected such as threading. Python has its global interpreter lock mostly because of it's garbage collection (see Cython). Keep it out of C / C++, thanks.
– unixman83
Apr 19 '12 at 7:47
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uwsgi invalid request block size
...uwsgi has "http", "http-socket" and "socket" options. I wanted to call cgi python scripts; "socket" was the answer.
– NuclearPeon
May 29 '14 at 19:06
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How can I sharpen an image in OpenCV?
...
You can try a simple kernel and the filter2D function, e.g. in Python:
kernel = np.array([[-1,-1,-1], [-1,9,-1], [-1,-1,-1]])
im = cv2.filter2D(im, -1, kernel)
Wikipedia has a good overview of kernels with some more examples here - https://en.wikipedia.org/wiki/Kernel_(image_processin...
Tricky Google interview question
...ate over i and j" you need less storage capacity, a FIFO is enough. See my Python solution.
– GaBorgulya
Apr 1 '11 at 2:15
7
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How to read multiple text files into a single RDD?
...
and identical python syntax
– patricksurry
Jun 11 '15 at 18:16
8
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Getting one value from a tuple
Is there a way to get one value from a tuple in Python using expressions?
2 Answers
2
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Difference between a class and a module
...e namespaces...which don't exist in java ;)
I also switched from Java and python to Ruby, I remember had exactly this same question...
So the simplest answer is that module is a namespace, which doesn't exist in Java. In java the closest mindset to namespace is a package.
So a module in ruby is ...
What is the difference between __init__ and __call__?
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In Python, functions are first-class objects, this means: function references can be passed in inputs to other functions and/or methods, and executed from inside them.
Instances of Classes (aka Objects), can be treated as if th...
eval command in Bash and its typical uses
... test.py
print("export foo=bar/baz/womp")
print(". activate.sh")
$ eval $(python test.py)
bash: export: `.': not a valid identifier
bash: export: `activate.sh': not a valid identifier
$ eval "$(python test.py)"
I got activated!
...