May 10, 2018 · I mean, another answer is that it's the length of the iterable minus 1, or the amount of elements in a list minus 1, but the question is: what is really the question.

Oct 26, 2008 · The protocol in Python is to implement this method on objects which have a length and use the built-in len() function, which calls it for you, similar to the way you would implement __iter__() …

Apr 27, 2016 · I am 99.9% positive that any sequence type in higher-level languages will store its length. The len (or strlen or length) functions in Python, Perl, and Ruby (and other such languages) should …

Well, len(s) is a built-in Python method which returns the length of an object. Now __len__() is a special method that is internally called by len(s) method to return the length of an object.

Aug 19, 2013 · You won't be able to. At least if you want it to work with the rest of python. See the Called to implement the built-in function len (). Should return the length of the object, an integer >= 0. …

The preferred way to get the length of any python object is to pass it as an argument to the len function. Internally, python will then try to call the special __len__ method of the object that was passed.

Dec 22, 2018 · I am looking at some code but don't understand what passing in multiple parameters means in the range of a for loop in Python for i in range (1, len (motels)):

from __future__ import print_function import sys print(sys.argv, len(sys.argv)) The script requires Python 2.6 or later. If you call this script print_args.py, you can invoke it with different arguments to see what …

Dec 26, 2014 · 2 Unlike other languages, iterating over a sequence in Python yields the elements within the sequence itself. This means that iterating over [1, 2, 4] yields 1, 2, and 4 in turn, and not 0, 1, and 2.

Jun 27, 2018 · 0 Indexes start from 0 in python, so if for example Mymessage has a value of 'hello', then range(len(Mymessage)) will produce an iterator that counts from 0 to 4 because Mymessage is 5 …