Combine the patterns! Build a `Library` class that acts as a Singleton. Implement context managers (`__enter__`, `__exit__`) logging ‘Tx Open’ and ‘Tx Close’. Allow it to store an internal book list and support iteration (`__iter__`). Read a book name, open a context, add the book, and iterate through the library to print.
A single string representing a book title.
Print transaction logs, then the book title.
None
Python101
Tx Open
Tx Close
Book: Python101
A complete systems-level architecture blending Singleton, Context Managers, and Iterator protocols into one robust object.
class Library:
# Combine Singleton, Context Manager, and Iterator logic
pass
if __name__ == '__main__':
book_name = input().strip()
# Orchestrate the library
passEmbedded systems rely on efficient low-level programming to interact directly with hardware. In this course, you will learn how to write practical Embedded C programs used in real microcontroller-based systems. Rather than focusing only on theory, this course follows a practice-driven approach. Each lesson includes hands-on coding exercises that simulate real firmware development tasks used