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In this tutorial, we are going to learn about for loop in Python. We will see how to use it in different ways, iteration over numbers, list, dictionary, tuple, string, range, set, file, etc with multiple examples. We will also see the nesting of loops and how to use a break and continue keywords in for loop.
In this introductory tutorial, you'll learn all about how to perform definite iteration with Python for loops. You’ll see how other programming languages implement definite iteration, learn about iterables and iterators, and tie it all together to learn about Python’s for loop.
The for loop allows you to iterate through each element of a sequence and perform certain operations on it. In this article, we will explore how to use the for loop in Python, with the help of examples.
The range () Function. To loop through a set of code a specified number of times, we can use the range () function, 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.
In this example, numbers is an iterable containing numeric data. The assignment unpacks the values in numbers into the four target variables. To do this, Python internally runs a quick loop over the iterable on the right-hand side to unpack its values into the target variables.
18 wrz 2023 · Python for Loops. The Python for loop is used when you have a block of code you want to execute a fixed number of times. To execute a for loop, you need to start with an iterable, e.g. a list or an array. Then simply loop through the contents of the iterable.
We present several more examples to give you a sense of how for-loops work. Other examples of sequences that we can iterate over include the elements of a tuple, the characters in a string, and other sequential data types. EXAMPLE: Print all the characters in the string "banana". for c in "banana": print(c) b. a.
