Combining Two Images with OpenCV
I’m trying to use OpenCV 2.1 to combine two images into one, with the two images placed adjacent to each other. In Python, I’m doing:
Python
How would I get everything before a : in a string Python
I am looking for a way to get all of the letters in a string before a : but I have no idea on where to start. Would I use regex? If so how?
What is “thread local storage” in Python, and why do I need it?
In Python specifically, how do variables get shared between threads?
How to install PyQt4 in anaconda?
From the PyQt4 website their instructions for installing the package are to download the tarball and use the config file. I have two versions of Python, one is my normal system and the other is within anaconda. I’m not sure how I get this to install within anaconda. Is there a conda command to install PyQt4?
Keras – Plot training, validation and test set accuracy
I want to plot the output of this simple neural network:
Flask CLI throws ‘OSError: [Errno 8] Exec format error’ when run through docker-compose
I’m running a Flask application with a Custom Script. Or trying to, anyway.
Group by multiple keys and summarize/average values of a list of dictionaries
What is the most pythonic way to group by multiple keys and summarize/average values of a list of dictionaries in Python please? Say I have a list of dictionaries as below:
Getting Python’s unittest results in a tearDown() method
Is it possible to get the results of a test (i.e. whether all assertions have passed) in a tearDown() method? I’m running Selenium scripts, and I’d like to do some reporting from inside tearDown(), however I don’t know if this is possible.
How can I create a random number that is cryptographically secure in python?
I’m making a project in python and I would like to create a random number that is cryptographically secure, How can I do that? I have read online that the numbers generated by the regular randomizer are not cryptographically secure, and that the function os.urandom(n) returns me a string, and not a number.
NumPy/OpenCV 2: how do I crop non-rectangular region?
I have a set of points that make a shape (closed polyline). Now I want to copy/crop all pixels from some image inside this shape, leaving the rest black/transparent. How do I do this?