Type casting in Python means converting one data type into another data type. Sometimes in programming, you need to change the type of a variable to perform specific operations. Python provides built in functions that allow you to convert data types easily.<\/p>\n\n\n\n
Type casting is commonly used when working with numbers, strings, and Boolean values.<\/p>\n\n\n\n
Different operations require specific data types. For example, you cannot add a number and a string directly. Type casting allows you to convert data into the correct format so calculations and operations can be performed without errors.<\/p>\n\n\n\n
Python provides several built in functions for type conversion:<\/p>\n\n\n\n
int() converts a value into an integer
float() converts a value into a floating point number
str() converts a value into a string
bool() converts a value into a Boolean<\/p>\n\n\n\n
You can convert a float or string into an integer using the int() function.<\/p>\n\n\n\n
Example:<\/p>\n\n\n\n
x = 10.8
y = int(x)<\/p>\n\n\n\n
The value of y will be 10 because decimals are removed.<\/p>\n\n\n\n
Example with string:<\/p>\n\n\n\n
num = “25”
number = int(num)<\/p>\n\n\n\n
Now number becomes an integer.<\/p>\n\n\n\n
Use the float() function to convert integers or strings into decimal numbers.<\/p>\n\n\n\n
Example:<\/p>\n\n\n\n
x = 10
y = float(x)<\/p>\n\n\n\n
The value of y will be 10.0<\/p>\n\n\n\n
Example with string:<\/p>\n\n\n\n
price = “99.5”
new_price = float(price)<\/p>\n\n\n\n
Use the str() function to convert numbers into text.<\/p>\n\n\n\n
Example:<\/p>\n\n\n\n
age = 25
text_age = str(age)<\/p>\n\n\n\n
Now text_age is a string.<\/p>\n\n\n\n
This is useful when combining numbers with text.<\/p>\n\n\n\n
Example:<\/p>\n\n\n\n
age = 20
print(“My age is ” + str(age))<\/p>\n\n\n\n
The bool() function converts values into True or False.<\/p>\n\n\n\n
Example:<\/p>\n\n\n\n
print(bool(1))
Output will be True<\/p>\n\n\n\n
print(bool(0))
Output will be False<\/p>\n\n\n\n
Empty values such as empty string or zero return False. Most other values return True.<\/p>\n\n\n\n
Implicit type casting happens automatically when Python converts smaller data types into larger ones.<\/p>\n\n\n\n
Example:<\/p>\n\n\n\n
x = 10
y = 2.5
result = x + y<\/p>\n\n\n\n
Python automatically converts x into a float.<\/p>\n\n\n\n
Explicit type casting is done manually using functions like int(), float(), or str().<\/p>\n\n\n\n
Type casting helps ensure compatibility between different data types in your program. It prevents errors and allows smooth data processing. Understanding type casting is essential for performing calculations, handling user input, and building efficient Python applications.<\/p>\n\n\n\n
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