Python Exercise 07: Fix Square Root Bug | How to Calculate Square Root of a Number in Python

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Hey guys, welcome back to this channel
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and today we are going to work on
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another Python fix a challenge. It's
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exercise 7 and this one is all about
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calculating the square root of a number
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but there's a small bug in the code and
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let's figure it out together and learn
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how to fix it. So here is the original
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code snippet and let me just try. So
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here we are just giving the number
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input.
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Enter a number.
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And to calculate the square root, root
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equal to number
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and print. We are printing the output.
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The square root
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is
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okay. And here
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getting input from the user.
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Calculate the square root
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and
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display
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those square root.
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So it looks pretty simple, right? We ask
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the user to enter a number and we are
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calculating the square root and then we
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are printing it. But there's a hidden
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issue here. Can you spot it?
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So the problem is with how we are
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handling the data types. Let me break it
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down. So when we use the input function
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in the Python, it always returns a
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string. But in this line, which is in
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this line, we are trying to raise a
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string to the power of 0.5, which causes
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an error. And Python doesn't know how to
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calculate the square root of a text.
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That's like asking it to find the square
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root of the word banana. This is not
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going to happen, right?
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So here is how we can fix it. So we need
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to first convert the input to a number.
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Since we are working with decimals
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are like square roots. So we'll always
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use float here. So
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and also another small issue is we are
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trying to add a string and a number in
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this line.
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So instead we can either convert this
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root to string or my favorite way is use
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an f string for cleaner formatting.
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So all you can do is just use f
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and
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boot
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and yeah that's it. Now when you run
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this code and enter 16 you'll get output
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the square root is 4.0. Let's try
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see the square root is 4.0. So in this
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short exercise, we learned two key
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things. Always convert the input to the
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values when you need to do math. And be
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careful when combining strings and
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numbers because fst strings also can
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make your life more easier. And yeah,
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that's all for today. And if you found
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this video helpful, hit this like
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button, subscribe for more beginner
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friendly Python content, and let me know
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in the comments if you have ever run
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into similar error. Also, there's a
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challenge time. You have to try entering
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25 or 49 in this program and see what
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output you get. All right, that's it for
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today. Keep coding, keep learning, and
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I'll see you in the next video.

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Python Exercise 07: Fix Square Root Bug | How to Calculate Square Root of a Number in Python

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