How to fix TypeError when inserting an int variable into a string using conc... in Python

Hello, Dedicated Coders! 🖥️💡

We're excited to share with you our newest video, "How to solve TypeError when inserting an int variable into a string using concatenation: filename = 'file' + num + '.ext' in Python". 🎥 This series is meticulously designed to arm you with knowledge 🧠 and skills 🛠️ to overcome frequent coding challenges.

Today, we will decipher 🔎 and resolve a common error faced by Python coders: the bit hard to solve TypeError when inserting an int variable into a string using concatenation: filename = 'file' + num + '.ext'. Here is a snapshot of the code of the video:

Troubling Scenario: ❗️

num = 5
filename = 'file' + num + '.ext'

Unwanted Result: 🚫
TypeError when inserting an int variable into a string using concatenation: filename = 'file' + num + '.ext'

Effective Resolution: ✔️

num = 5
filename = 'file' + str(num) + '.ext'

Desired Output: 🏁

In this detailed walkthrough, we will illuminate 💡 the underlying cause of this error, and offer a comprehensive explanation: In Code1, there's a TypeError because you cannot concatenate a string ('file') directly with an integer (num). In Code2, the error is corrected by converting the integer to a string using str(num). 🎯

Ready to demystify the NameError: name is not defined in your code? Click to watch the video now 🎬. If it aids you in your coding journey, kindly express your appreciation by hitting the like button 👍, and don't hesitate to enrich our coding community by sharing your questions or insights in the comments section 💬.

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