What is the return value of the range() function in python?

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I thought that the range() function returns a list with the arguments that you have put inside the parentheses. But when I type range(4) in IDLE, I get range(0, 4) as output. Similarly, when I type print(range(4)), I also get range(0, 4) as output. I am currently using python 3.5.

I am currently studying python with the following eBook: "How To Think Like a Computer Scientist" and in that eBook, they provide active code blocks where you can run python code. And when I run print(range(4)) in there, I do get the list that I expected, i.e. [0, 1, 2, 3].

Can someone explain this to me?

Thanks in advance!

The book you are reading probably uses Python 2, where range returns a list.

In Python 3, range returns an immutable sequence type instead.

What is the return value of the range() function in python?, I thought that the range() function returns a list with the arguments that you have put inside the parentheses. But when I type range(4) in IDLE, I  The range() function returns a sequence of numbers, starting from 0 by default, and increments by 1 (by default), and ends at a specified number.

Your book was probably written using Python 2.x. In Python 2.x the range function actually returned a list that the for loop would iterate through. In Python 3.x, the range function is it's own type, and is actually a generator function so the numbers are produced on the fly as the for loop is executing.

You can still create a list from a range function if you pass it into a list like so.

list(range(4))

Which would output a list with the following contents.

[0,1,2,3]

Python range() Function Explained with Examples, Python range() function doesn't return a list type. It returns a range object, i.e., sequence object of type range, So as a result, we get an immutable sequence  The range () is a built-in function of Python which returns a range object, which is nothing but a sequence of integers. i.e., Python range () generates the integer numbers between the given start integer to the stop integer, which is generally used to iterate over with for loop.

range(a, b) return an instance of class range. You can check it by print(type(range(1, 5))).

And what you expect can be got by print(list(range(a, b))).

Python range(), Return value from range(). range() returns an immutable sequence object of numbers depending upon the definitions used: range(stop). Returns a sequence of  Here the range() function is called with a step argument of 3, so it will return every third element from 1 to 20 (off course not including 20). You can also use the step argument to count backwards.

according to this:

So in Python 3.x, the range() function got its own type. In basic terms, if you want to use range() in a for loop, then you're good to go. However you can't use it purely as a list object. For example you cannot slice a range type.

however if you call print() on it, the print function will try to create a string representation of the range-object, and this string-representation is equivalent to the string representation of a list.

If you want the list you can do list(range(<parameters>))

Python range() function, Most common use of range() function in Python is to iterate sequence type (List, start: integer starting from which the sequence of integers is to be returned  range() is a built-in function of Python. It is used when a user needs to perform an action for a specific number of times. range() in Python(3.x) is just a renamed version of a function called xrange in Python(2.x). The range() function is used to generate a sequence of numbers.

print(range(10)) returns range(0, 10) as output

In many ways the object returned by range() behaves as if it is a list, but in fact it isn’t. It is an object which returns the successive items of the desired sequence when you iterate over it, but it doesn’t really make the list, thus saving space.

We say such an object is iterable, that is, suitable as a target for functions and constructs that expect something from which they can obtain successive items until the supply is exhausted. We have seen that the for statement is such an iterator. The function list() is another; it creates lists from iterables:

list(range(5)) returns [0, 1, 2, 3, 4] as output

Python range() built-in-function, Let us understand the basics of range() function in python. The return value of the range function is a sequence of numbers depending upon  Functions that Return Values¶ Most functions require arguments, values that control how the function does its job. For example, if you want to find the absolute value of a number, you have to indicate what the number is. Python has a built-in function for computing the absolute value:

6.2. Functions that Return Values, Python has a built-in function for computing the absolute value: Run Furthermore, functions like range , int , abs all return values that can be used to build more  Python's range() vs xrange() Functions You may have heard of a function known as xrange() . This is a function that is present in Python 2.x, however it was renamed to range() in Python 3.x, and the original range() function was deprecated in Python 3.x.

Built-in Functions, As repr() , return a string containing a printable representation of an object, but The bytearray class is a mutable sequence of integers in the range 0 <= x < 256. For more information on class methods, see The standard type hierarchy. Python Server Side Programming Programming The print() function writes, i.e., "prints", a string or a number on the console. The return statement does not print out the value it returns when the function is called. It however causes the function to exit or terminate immediately, even if it is not the last statement of the function.

Python range Function, This will determine the space or difference between each integer values. For example, range(1, 10, 2) returns 1, 3, 5, 7, 9. You can notice that the difference  The python return statement is used to return values from the function. We can use the return statement in a function only. It can’t be used outside of a Python function.