I am quite often using funky stuff as keys for dictionaries, and therefore, I am wondering what is the right way to do it – and this goes through implementing good hash methods for my objects. I am aware of other questions asked here like good way to implement hash, but I’d like to understand how the default __hash__ works for custom objects, and if it is possible to rely on it.
I have an array of functions and I’m trying to produce one function which consists of the composition of the elements in my array.
My approach is:
I am developing a django API which will be running on top of Apache2 via WSGI on a server running Ubuntu.
How do I get two distinct random records using Django? I’ve seen questions about how to get one but I need to get two random records and they must differ.
This is the dictionary
I am trying to create a text file in csv format out of a PyQt4 QTableWidget. I want to write the text with a UTF-8 encoding because it contains special characters. I use following code:
If I run echo a; echo b in bash the result will be that both commands are run. However if I use subprocess then the first command is run, printing out the whole of the rest of the line.
The code below echos a; echo b instead of a b, how do I get it to run both commands?
If I have the follow 2 sets of code, how do I glue them together?
Given the following data frame:
How do I calculate the inverse of the cumulative distribution function (CDF) of the normal distribution in Python?