Len

How do you find the length of a range object in Python? In Python the built-in function len() can provide the length of a string or list, can the same function be used to count the length of a range object too? What Is A Range Object? A range object is one of the three basic sequence types in Python alongside tuples and lists. The built-in function range(start, stop[, step]) creates a range object and if you’re familiar with the slice operator then you’re familiar with a range object and the parameters used in this function. ...

How do you find the length of the string in Python without importing any libraries? To find the length of a string in Python use the built-in len() function, which takes one parameter that can be of data type string, bytes, tuple, list, range, or a collection (such as a dictionary, set, or frozen set). The len() function, when used on a string, will return the number of characters in that string. ...

How can you check if a string is empty in Python? To determine if a string is empty in Python use of the following three means available: see if the string has any length by using the built-in len() function, do a direct comparison using the expression == "" or convert the string to a boolean data type and if the result is false it is an empty string. Let’s look at each approach and see how they perform. ...

To find the length of a list use the built-in len() function which takes a single parameter that is iterable. For example this could be a string, list, tuple or dictionary and here is how it would look: 1 2 3 4 5 6 7 8 9 >>> my_list = ['a', 'b', 'c'] >>> len(my_list) 3 >>> my_dict = {'a': 100, 'b': 200, 'c': 300} >>> len(my_dict) 3 >>> my_str = 'How long is a piece of string?' >>> len(my_str) 30 This may be the easiest and quickest way of being able to find the length of a list and other data types, but what if you want to exclude certain items from your list? ...