If Then Statement Python

Learn how to use the ifelse statement in Python to execute a block of code based on a condition. See syntax, examples, indentation, nested if, compact if, ternary operator and logical operators.

if Statement in Python. If the simple code of block is to be performed if the condition holds true then the if statement is used. Here the condition mentioned holds then the code of the block runs otherwise not. Python if Statement Syntax. if condition Statements to execute if condition is true. Flowchart of if Statement in Python

Learn how to use if, else, elif, and logical operators to create conditional statements in Python. See examples of basic and complex if statements, and how to apply them to lists and loops.

Inside the if statement, we test if num is greater than 0 If that conditional passes True, then the print statement runs We see quotThe number is positivequot printed out You'll notice some crucial elements that make up a Python conditional statement The if keyword followed by the condition check A colon at the end of the if line

In the form shown above ltexprgt is an expression evaluated in a Boolean context, as discussed in the section on Logical Operators in the Operators and Expressions in Python tutorial. ltstatementgt is a valid Python statement, which must be indented. You will see why very soon. If ltexprgt is true evaluates to a value that is quottruthyquot, then ltstatementgt is executed.

In this example, the final statement always executes regardless of the condition in the if statement. The reason is that it doesn't belong to the if block Enter your age 11 Let 's go and vote. Code language Python python Python ifelse statement

Python Conditions and If statements. Python supports the usual logical conditions from mathematics Equals a b Not Equals a ! b Less than a lt b Less than or equal to a lt b Greater than a gt b Greater than or equal to a gt b These conditions can be used in several ways, most commonly in quotif statementsquot and loops.

An if statement doesn't need to have a single statement, it can have a block. A block is more than one statement. The example below shows a code block with 3 statements print. A block is seen by Python as a single entity, that means that if the condition is true, the whole block is executed every statement.

Learn how to use if-then statements to make decisions in Python code. This blog post covers the fundamental concepts, usage methods, common practices, and best practices of Python if-then statements with examples and references.

Learn how to use conditional statements if, else and elif in Python to execute different blocks of code depending on the condition. See examples, syntax, comparison operators, logical operators and problems.