Loops in python are an important concept even in any programming language. They allow you to repeat a block of code multiple times, which can be incredibly useful when working with large amounts of data or performing repetitive tasks. In this blog post, we will take a look at the different types of loops available in Python and how to use them effectively.
The first type of loop in Python is the “while” loop. The while loop allows you to repeat a block of code as long as a certain condition is true. For example, the following code will print the numbers 1 through 10:
i = 1 while i <= 10: print(i) i += 1
Another type of loop in Python is the “for” loop. The for loop is used to iterate over a sequence of items, such as a list or a string. For example, the following code will print each item in a list:
my_list = [1, 2, 3, 4, 5] for item in my_list: print(item)
In addition to the while and for loops, Python also has a built-in function called “range()” which can be used to generate a sequence of numbers. This can be useful when working with loops, as it allows you to easily specify the number of iterations. For example, the following code will print the numbers 1 through 5:
for i in range(1, 6): print(i)
break & continue
It is also possible to use the “break” and “continue” statements within loops to control the flow of execution. The “break” statement allows you to exit a loop early, while the “continue” statement allows you to skip over certain iterations. For example, the following code will only print the odd numbers in a list:
my_list = [1, 2, 3, 4, 5] for item in my_list: if item % 2 == 0: continue print(item)
In conclusion, loops are a powerful tool in Python that allow you to repeat a block of code multiple times. Whether you need to iterate over a list of items, or perform a task a specific number of times, loops can make your code more efficient and easier to read.