Refactor collections and fstrings

[glenn-jocher]

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

Optimizations and code cleaning in Ultralytics YOLOv5 repository.

📊 Key Changes

• Python string formatting using f-strings for file path operations, making code more readable 🛠️.
• Modified lists to sets in if-conditions to reduce lookup time and enhance code efficiency 🚀.
• Refactored equality checks from using multiple if-else to single statement handling for rotations and ranks ⚙️.
• Improved exception handling by simplifying except blocks 💼.
• Conciseness in tensor operations, e.g., merged dimensions unpacking into a single line 📐.
• General code cleanups, such as unifying iterator variables and removing unnecessary else after continue 😎.

🎯 Purpose & Impact

• The changes prioritize code readability and performance, which can facilitate future maintenance and contributions 🌱.
• F-string adoption is a Pythonic way to handle string operations, contributing to a more modern codebase ✨.
• Reducing computational complexity, especially in conditionals, leads to minor performance enhancements 🏎️.
• Clean and concise code helps both newer contributors understand the codebase and maintains a high standard for the project's code quality 🧹.
• Overall, these changes should not affect the end-users directly but improve the developer experience and could indirectly lead to more stable releases 🏗️.