Python is a versatile and efficient programming language that offers various functionalities.
One of those includes using loops to perform certain actions multiple times. This tutorial will focus on creating multiple variables within a Python for loop – a technique that can significantly improve the efficiency of your code by reducing redundancy and repetition in your variable assignment.
Step 1: Understanding Python For Loops
First and foremost, it’s essential to understand what a for loop is. A for loop is a control flow statement in Python that allows code to be executed repeatedly based on a certain condition.
Using the for loops, you can iterate over a sequence (a list, a tuple, a dictionary, a set, or a string) or other iterable objects. The loop continues until we reach the last item in the sequence.
Step 2: Creating a Single Variable in For Loop
To start with, let’s demonstrate the creation of a single variable in a for loop. The syntax is quite straightforward – we use the ‘for’ keyword followed by the variable name, the ‘in’ keyword, and the sequence or iterable.
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for i in range(5): print(i) |
This code will print the numbers 0 through 4, each on a new line.
Step 3: Creating Multiple Variables in For Loop
To create multiple variables, we’ll use a similar syntax. The only difference is, that instead of a single variable after the ‘for’ keyword, we will specify multiple variables, separated by commas.
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for i, j in enumerate(range(5,10)): print(i,j) |
This code will print pairs of numbers – the index and the corresponding value from the range (5,10), each on a new line.
The Full Code:
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for i in range(5): print(i) for i, j in enumerate(range(5,10)): print(i,j) |
Output:
0 1 2 3 4 0 5 1 6 2 7 3 8 4 9
Conclusion:
In this tutorial, we learned about Python for loops and how to create single and multiple variables within these loops. This technique helps in enhancing the efficiency of your code and leads to cleaner and more manageable code.
So, next time you find yourself repeatedly creating individual variables, consider creating multiple variables within a for loop.