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How to iterate over all the instances of a class?

I know this has been asked before, but I couldn’t find an answer for my problem and all of the answers got me more confused. So I created a class called Books, which takes as input a file location and the name of the file, and has a method called countwords which counts the words of the file. I created

Translate encryption in python to node

Trying to implement these 2 functions from Python to Nodejs: This decrypt works (when I encrypt in Python, I manage to decrypt in node), but the opposite way fails. Any idea what is missing in the nodejs encrypt function? Answer If the following points are taken into account, the encryption and decryption of …

Converting from float to percentage

I would like to convert a decimal number (say 0.33333) to percentage (expected answer 33.33%) I used the following which gives indeed 33.33% However, the result is a string, I would like it to still be a number (in % format) to be able to perform mathematical operations on it (e.g. format(x,’.2%’)…

pip install & uninstall recursively in non-interactive mode

As a part of my bash script, I want to install and uninstall pip dependencies that I have their names in a file in a non-interactive mode. I was able to search around and find these commands: I wasn’t able to find –yes & –no-input options in the help doc of pip, and I’m not sure if…

How do you produce a random 0 or 1 with random.rand

I’m trying to produce a 0 or 1 with numpy’s random.rand. np.random.rand() produces a random float between 0 and 1 but not just a 0 or a 1. Thank you. Answer You can use np.random.choice with a list of [0,1], or use np.random.radint with a range of 0,2 You can also use the random module for the equ…