What do you mean by a decorator? Name some PDB commands and their uses.

A decorator is defined as a function that adds functionality to another function without changing it. It wraps the function to add some functionality to it.Some PDB commands include

• <b>: It adds a breakpoint
• <c>: It resumes the execution
• <s>: It debugs step by step
• <n>: It moves to next line
• <l>: It lists the source code
• <p>: It prints an expression