#RANGE FOR LOOP PYTHON CODE#
I hope you were able to code along to this tutorial without any difficulty. Note that this approach is similar to a `do-while` loop in other languages, where the loop body is guaranteed to execute at least once before the condition is checked. If the condition evaluates to false, the block of code is not executed. When you need to execute a block of code only if a particular condition is true, you can use the `if` statement.
#RANGE FOR LOOP PYTHON HOW TO#
We’ll also learn how to iterate over sequences using loops and the loop control statements break and continue. We’ll learn how the if-else statements facilitate branching and conditional execution. Sometimes, you’d need to implement logic to control the flow of execution based on certain conditions or loop through an iterable to process the items in it. When you run a Python script, the code execution occurs-sequentially-in the same order in which they occur in the script. Now that you’re familiar with the primitive data types and some sequences/iterables, let's move on to the next part of the discussion: control structures. In this example, the dictionary comprehension directly pairs each student name from the `student_names` list with the corresponding exam score from the `student_scores` tuple to create the `student_info` dictionary with names as keys and scores as values. To replace the value of a variable in an f-string, specify name of the variable within a pair of curly braces as shown: Such strings are called formatted strings or f-strings. Notice that the string in the code snippet below is preceded by an `f`. Single-line comments in Python start with a #. Here’s a simple program that takes in the user’s name as input and greets them.Ĭomments help improve readability of your code by providing additional context to the user. You should always prompt the user to let them know what they should input. Now let's go a step further and read in some input from the user using the `input()` function. So to print out any message string, you can use `print("")`. Python strings are delimited by a pair of single or double quotes. In this super simple example, notice that "Hello, World!" is a sequence-a string of characters. To print out Hello, World!, we've used the `print()` function, one of the many built-in functions in Python.
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