default-value

Python constructor and default value

Python constructor and default value Question: Somehow, in the Node class below, the wordList and adjacencyList variable is shared between all instances of Node. >>> class Node: … def __init__(self, wordList = [], adjacencyList = []): … self.wordList = wordList … self.adjacencyList = adjacencyList … >>> a = Node() >>> b = Node() >>> a.wordList.append(“hahaha”) …

Total answers: 4

In Python, can I specify a function argument's default in terms of other arguments?

In Python, can I specify a function argument's default in terms of other arguments? Question: Suppose I have a python function that takes two arguments, but I want the second arg to be optional, with the default being whatever was passed as the first argument. So, I want to do something like this: def myfunc(arg1, …

Total answers: 3

Getting a default value on index out of range in Python

Getting a default value on index out of range in Python Question: a = [‘123’, ‘2’, 4] b = a[4] or ‘sss’ print b I want to get a default value when the list index is out of range (here: ‘sss’). How can I do this? Asked By: zjm1126 || Source Answers: In the Python …

Total answers: 13

What is the scope of a defaulted parameter in Python?

What is the scope of a defaulted parameter in Python? Question: When you define a function in Python with an array parameter, what is the scope of that parameter? This example is taken from the Python tutorial: def f(a, L=[]): L.append(a) return L print f(1) print f(2) print f(3) Prints: [1] [1, 2] [1, 2, …

Total answers: 7