7 Python Mistakes That Instantly Expose Junior Developers
💡 Learn how to design great software in 7 steps: https://arjan.codes/designguide. This video shows 7 code smells that point to poor design decisions, as well as how to fix them. I'm pretty sure you're guilty of at least one of these smells (as I was in the past :) ), and knowing these will help you write much cleaner, more robust code. The code that I worked on in this video is available here: https://github.com/ArjanCodes/2021-co.... 🎓 ArjanCodes Courses: https://www.arjancodes.com/courses. 💬 Join my Discord server: https://discord.arjan.codes. ⌨️ Keyboard I’m using: https://amzn.to/49YM97v. 🔖 Chapters: 0:00 Intro 1:27 Explaining the example 3:12 Code smell #1: imprecise types 5:52 Code smell #2: duplicate code 7:31 Code smell #3: not using available built-in functions 8:53 Code smell #4: vague identifiers 10:05 Code smell #5: using isinstance to separate behavior 13:40 Code smell #6: using boolean flags to make a method do 2 different things 15:58 Code smell #7: catching and then ignoring exceptions 17:29 Code smell #8 (BONUS): not using custom exceptions 21:30 Final thoughts #arjancodes #softwaredesign #python
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