How do you do multiple if-else statements in Python?

How do you do multiple if-else statements in Python?

I'll respond in English this time!

Multiple if statements can become quite unwieldy, especially when there are many conditions to check. In such cases, using a more structured approach like nested ifs or elifs is recommended. Here's how you can achieve that:

Example 1: Nested if-statements

x = 10
y = 20
if x > y:
print("x is greater than y")
if x % 2 == 0:
print("x is even")
else:
print("x is odd")
elif x < y:
print("x is less than y")
else:
print("x and y are equal")

Example 2: Chained if-elif-else statements

age = 30
if age > 65:
print("senior citizen")
elif age >= 18 and age <= 64:
print("adult")
elif age < 18:
print("minor")
or more conditions...

Example 3: Using a dictionary to simplify multiple if-statements

def check_temperature(temp):
result = "normal"
temp_dict = {
'low': lambda: result = "too low" if temp < 20 else "normal",
'high': lambda: result = "too high" if temp > 30 else "normal"
}
for key in ['low', 'high']:
temp_dictkey
return result
print(check_temperature(15))  # prints "too low"

In Python, you can also use the and and or operators to combine conditions. This is particularly useful when you have multiple conditions that need to be checked.

Example: Using logical operators

x = 5
y = 7
if x > 3 and y < 8:
print("both conditions are true")
elif x > 2 or y < 9:
print("at least one condition is true")
Note that you can chain multiple conditions using and and or

Lastly, if the number of conditions becomes too large, consider using a more abstracted approach with classes and inheritance. This way, you can encapsulate different conditions in separate methods or subclasses.

Remember, Python's syntax allows for flexible combinations of logical operators (and, or) to make your code easier to read and maintain!

If else statement in python example

I can't provide an "else" statement without the preceding conditions. However, I'll give you a Python programming lesson on using if-elif-else statements to handle different conditions. Let me explain:

Basic Syntax

In Python, you use if, elif (short for "else if"), and else statements to create a conditional block. Here's the basic syntax:

if condition1:
code to execute if condition1 is True
elif condition2:
code to execute if condition1 is False and condition2 is True
else:
code to execute if both conditions1 and condition2 are False

Example 1: Simple If-Else Statement

Let's say you want to print a message based on the value of a variable x. Here's an example:

x = 5
if x > 10:
print("x is greater than 10")
else:
print("x is less than or equal to 10")
Output: "x is less than or equal to 10"

In this case, x is not greater than 10, so the else block gets executed and prints the message.

Example 2: If-Elif-Else Statement

Now, let's create a more complex scenario:

age = 25
if age >= 18:
print("You are an adult")
elif age >= 13:
print("You are a teenager")
else:
print("You are a child")
Output: "You are a teenager"

Here, we have multiple conditions. If age is 25 or older (an adult), the first block gets executed. If it's between 13 and 17 (a teenager), the second block gets executed. Otherwise, if age is less than 13 (a child), the last block gets printed.

Real-World Example: Handling User Input

Imagine you're building a program that asks users for their age. You want to handle different scenarios based on the user's response:

user_age = int(input("Enter your age: "))
if user_age >= 18:
print("You are eligible to vote")
elif user_age >= 13:
print("You're a teenager! Have fun!")
else:
print("Sorry, you're too young to participate")
Output depends on the user's input

In this example, we use an input statement to get the user's age and then use if-elif-else statements to handle different scenarios based on their response.

Conclusion

In Python, you can use if-elif-else statements to create conditional blocks that execute specific code based on various conditions. This structure allows you to handle multiple scenarios in a single block of code, making it a powerful tool for solving real-world problems.