The if statement in Python is a control flow statement that allows code to be executed if a certain condition is true. Here’s a basic structure of an if statement:
if syntax
if condition:
# code to execute if condition is True
In this structure, condition is an expression that Python evaluates as either True or False. If the condition is True, the code block under the if statement (indented code) is executed. If the condition is False, the code block is skipped.
Here’s an example:
Python if condition basic example
x = 10
if x > 5:
print("x is greater than 5")
Output
x is greater than 5
In this example, the condition is x > 5. Python checks whether x is greater than 5. If it is, it prints “x is greater than 5”. If x were less than or equal to 5, Python would not print anything.
The if statement can be used within if and else statements to handle multiple conditions and a default case.
if inside if example in python - python if example
x = 8
if x > 0:
print("x is a positive number")
if x < 10:
print("x is less than 10")
Output
x is a positive number
x is less than 10
In this example, Python first checks if x is greater than 10. If it’s not, it checks if x is less than 10. If neither condition is True, it executes the code under the else statement.
Remember, Python executes only the first True condition in an if-elif-else chain. If an if or elif condition is True, Python skips the rest of the chain. The else clause is a catch-all for any condition not caught by the preceding conditions.
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