Conditional constructs are used to integrate decision making into programs. The outcome of this decision making determines the series in which a program will execute instructions. You can manage the flow of a program by with conditional constructs.
The if statement:
The if statement of Python is close to that of other languages. The if statement includes a logical expression using which data is evaluated, and a decision is made based on the result of the comparison.
The syntax of the if statement is:
if expression:
statement (s)
Here if statement, condition is assessed primary. If condition is true that is, if the value is nonzero then the statement(s) block are executed. or else, the next statement following the statement(s) block is executed.