Python – What does the “at” (@) symbol do in Python


I'm looking at some Python code which used the @ symbol, but I have no idea what it does. I also do not know what to search for as searching Python docs or Google does not return relevant results when the @ symbol is included.

Best Solution

An @ symbol at the beginning of a line is used for class, function and method decorators.

Read more here:

PEP 318: Decorators

Python Decorators

The most common Python decorators you'll run into are:




If you see an @ in the middle of a line, that's a different thing, matrix multiplication. See this answer showing the use of @ as a binary operator.