Python is a powerful and versatile programming language that comes with a wide range of built-in functions. These functions are pre-written code snippets that can be called upon to perform specific tasks, making it easier for developers to write efficient and organized code. In this blog post, we will take a look at some of the most commonly used built-in functions in Python, along with examples to help you understand how they work.
One of the most commonly used built-in functions in Python is the “print()” function. This function is used to display output on the screen. For example, the following code will print the message “Hello World!” on the screen:
print("Hello World!")
Another commonly used built-in function in Python is the “len()” function. This function is used to find the length of a string, list, or other data type. For example, the following code will return the length of the string “Hello World!“:
string = "Hello World!" length = len(string) print(length)
The “max()” and “min()” functions are also commonly used in Python. These functions are used to find the largest and smallest values in a list or other data type, respectively. For example, the following code will return the largest and smallest values in a list of integers:
numbers = [1, 2, 3, 4, 5] largest = max(numbers) smallest = min(numbers) print(largest) print(smallest)
Another important built-in function in Python is the “range()” function. This function is used to generate a range of numbers, which can be used in for loops or other operations. For example, the following code will generate a range of numbers from 0 to 9:
for number in range(10): print(number)
The “str()” function is also commonly used in Python. This function is used to convert a value to a string. For example, the following code will convert an integer to a string:
number = 5 string = str(number) print(string)
Python also has a built-in function called “type()” which returns the type of a variable. For example:
x = 5 print(type(x)) # will print
The “sum()” function is another built-in function in Python. This function is used to calculate the sum of all items in an iterable, such as a list or tuple.
numbers = [1, 2, 3, 4, 5] result = sum(numbers) print(result) # will print 15
These are just a few examples of the many built-in functions available in Python. By understanding and utilizing these functions, you can write more efficient and organized code. However, it is important to note that there are many more built-in functions available in Python, and as you continue to learn and work with the language, you will become familiar with more of them.
In summary, Python comes with a wide range of built-in functions that can make it easier for developers to write efficient and organized code. Some of the most commonly used built-in functions include “print()“, “len()“, “max()“, “min()“, “range()“, “str()“, “type()“, “sum()” and many more.
